{"id":94823,"date":"2025-01-27T14:42:44","date_gmt":"2025-01-27T11:12:44","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/"},"modified":"2025-01-27T14:42:44","modified_gmt":"2025-01-27T11:12:44","slug":"initial-load-performance-for-react-developers-investigative-deep-dive-ani","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/","title":{"rendered":"\u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0627\u0631 \u0627\u0648\u0644\u06cc\u0647 \u0628\u0631\u0627\u06cc \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 React: \u063a\u0648\u0627\u0635\u06cc \u0639\u0645\u06cc\u0642 \u062a\u062d\u0642\u06cc\u0642"},"content":{"rendered":"<div data-article-id=\"2243140\" id=\"article-body\">\n<p><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter-rtl ez-toc-grey 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href=\"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/#%D8%B1%D8%A7%D9%87_%D8%A7%D9%86%D8%AF%D8%A7%D8%B2%DB%8C_%D9%BE%D8%B1%D9%88%DA%98%D9%87\" >\u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u067e\u0631\u0648\u0698\u0647<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/#%DA%A9%D8%A7%D9%88%D8%B4_%D8%AF%D8%B1_%D9%85%D9%88%D8%B1%D8%AF_devtools_%D9%84%D8%A7%D8%B2%D9%85\" >\u06a9\u0627\u0648\u0634 \u062f\u0631 \u0645\u0648\u0631\u062f devtools \u0644\u0627\u0632\u0645<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/#%DA%A9%D8%A7%D9%88%D8%B4_%D8%AF%D8%B1_%D8%B5%D9%81%D8%AD%D9%87_%D9%81%D8%A7%D9%86%D9%88%D8%B3_%D8%AF%D8%B1%DB%8C%D8%A7%DB%8C%DB%8C\" >\u06a9\u0627\u0648\u0634 \u062f\u0631 \u0635\u0641\u062d\u0647 \u0641\u0627\u0646\u0648\u0633 \u062f\u0631\u06cc\u0627\u06cc\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/#%DA%A9%D8%A7%D9%88%D8%B4_%D8%AF%D8%B1_%D8%B5%D9%81%D8%AD%D9%87_%D8%B9%D9%85%D9%84%DA%A9%D8%B1%D8%AF\" >\u06a9\u0627\u0648\u0634 \u062f\u0631 \u0635\u0641\u062d\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/#Additional_Exercise\" >Additional Exercise<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/#%D8%B3%D8%B1%D9%88%D8%B1_%D8%A8%D8%B3%DB%8C%D8%A7%D8%B1_%DA%A9%D9%86%D8%AF\" >\u0633\u0631\u0648\u0631 \u0628\u0633\u06cc\u0627\u0631 \u06a9\u0646\u062f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/#%D8%A7%D8%B2_%D9%BE%D9%87%D9%86%D8%A7%DB%8C_%D8%A8%D8%A7%D9%86%D8%AF_%D9%88_%D8%AA%D8%A3%D8%AE%DB%8C%D8%B1_%D9%85%D8%AE%D8%AA%D9%84%D9%81_%D8%AA%D9%82%D9%84%DB%8C%D8%AF_%D9%85%DB%8C_%DA%A9%D9%86%D8%AF\" >\u0627\u0632 \u067e\u0647\u0646\u0627\u06cc \u0628\u0627\u0646\u062f \u0648 \u062a\u0623\u062e\u06cc\u0631 \u0645\u062e\u062a\u0644\u0641 \u062a\u0642\u0644\u06cc\u062f \u0645\u06cc \u06a9\u0646\u062f<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/#%D9%88%D8%B1%D8%B2%D8%B4_%D8%A7%D8%B6%D8%A7%D9%81%DB%8C\" >\u0648\u0631\u0632\u0634 \u0627\u0636\u0627\u0641\u06cc<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/#%D8%A7%D9%87%D9%85%DB%8C%D8%AA_CDN\" >\u0627\u0647\u0645\u06cc\u062a CDN<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/#%DA%A9%D9%86%D8%AA%D8%B1%D9%84_%D8%AD%D8%A7%D9%81%D8%B8%D9%87_%D9%86%D9%87%D8%A7%D9%86_%D9%85%D8%B1%D9%88%D8%B1%DA%AF%D8%B1_%D8%A8%D8%A7_%D9%87%D8%AF%D8%B1%D9%87%D8%A7%DB%8C_%DA%A9%D9%86%D8%AA%D8%B1%D9%84_%D8%AD%D8%A7%D9%81%D8%B8%D9%87_%D9%86%D9%87%D8%A7%D9%86\" >\u06a9\u0646\u062a\u0631\u0644 \u062d\u0627\u0641\u0638\u0647 \u0646\u0647\u0627\u0646 \u0645\u0631\u0648\u0631\u06af\u0631 \u0628\u0627 \u0647\u062f\u0631\u0647\u0627\u06cc \u06a9\u0646\u062a\u0631\u0644 \u062d\u0627\u0641\u0638\u0647 \u0646\u0647\u0627\u0646<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/#%D9%88%D8%B1%D8%B2%D8%B4_%D8%A7%D8%B6%D8%A7%D9%81%DB%8C-2\" >\u0648\u0631\u0632\u0634 \u0627\u0636\u0627\u0641\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/#%D9%88%D8%B1%D8%B2%D8%B4_%D8%A7%D8%B6%D8%A7%D9%81%DB%8C-3\" >\u0648\u0631\u0632\u0634 \u0627\u0636\u0627\u0641\u06cc<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/#Cache-Montrol_%D9%88_Bundlers_%D9%85%D8%AF%D8%B1%D9%86\" >Cache-Montrol \u0648 Bundlers \u0645\u062f\u0631\u0646<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/#%D9%88%D8%B1%D8%B2%D8%B4_%D8%A7%D8%B6%D8%A7%D9%81%DB%8C-4\" >\u0648\u0631\u0632\u0634 \u0627\u0636\u0627\u0641\u06cc<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/nabfollower.com\/blog\/initial-load-performance-for-react-developers-investigative-deep-dive-ani\/#%D8%A2%DB%8C%D8%A7_%D9%88%D8%A7%D9%82%D8%B9%D8%A7%D9%8B_%D8%A8%D8%A7%DB%8C%D8%AF_%D9%87%D9%85%D9%87_%D8%A7%DB%8C%D9%86%D9%87%D8%A7_%D8%B1%D8%A7_%D8%A8%D8%B1%D8%A7%DB%8C_%D9%85%D9%88%D8%B1%D8%AF_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D8%B3%D8%A7%D8%AF%D9%87_%D8%AE%D9%88%D8%AF_%D8%A8%D8%AF%D8%A7%D9%86%D9%85%D8%9F\" >\u0622\u06cc\u0627 \u0648\u0627\u0642\u0639\u0627\u064b \u0628\u0627\u06cc\u062f \u0647\u0645\u0647 \u0627\u06cc\u0646\u0647\u0627 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0633\u0627\u062f\u0647 \u062e\u0648\u062f \u0628\u062f\u0627\u0646\u0645\u061f<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"%D9%81%D9%87%D8%B1%D8%B3%D8%AA_%D9%85%D8%B7%D8%A7%D9%84%D8%A8\"><\/span>\n<p>  \u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li>\n<p>      \u0645\u0639\u0631\u0641\u06cc \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u0627\u0648\u0644\u06cc\u0647 \u0628\u0627\u0631<\/p>\n<\/li>\n<li>\n<p>      \u0646\u0645\u0627\u06cc \u06a9\u0644\u06cc \u0627\u0632 Devtools Performance<\/p>\n<ol>\n<li>\n<p>        \u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u067e\u0631\u0648\u0698\u0647\n      <\/li>\n<li>\n<p>          \u06a9\u0627\u0648\u0634 \u062f\u0631 \u0645\u0648\u0631\u062f devtools \u0644\u0627\u0632\u0645<\/p>\n<\/li>\n<\/ol>\n<\/li>\n<li>\n<p>      \u06a9\u0627\u0648\u0634 \u062f\u0631 \u0634\u0631\u0627\u06cc\u0637 \u0645\u062e\u062a\u0644\u0641 \u0634\u0628\u06a9\u0647<\/p>\n<ol>\n<li>\n<p>        \u0633\u0631\u0648\u0631 \u0628\u0633\u06cc\u0627\u0631 \u06a9\u0646\u062f\n      <\/li>\n<li>\n<p>          \u0627\u0632 \u067e\u0647\u0646\u0627\u06cc \u0628\u0627\u0646\u062f \u0648 \u062a\u0623\u062e\u06cc\u0631 \u0645\u062e\u062a\u0644\u0641 \u062a\u0642\u0644\u06cc\u062f \u0645\u06cc \u06a9\u0646\u062f<\/p>\n<\/li>\n<li>\n<p>        \u0627\u0647\u0645\u06cc\u062a CDN\n      <\/li>\n<\/ol>\n<\/li>\n<li>\n<p>    \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0627\u0632\u062f\u06cc\u062f \u0631\u0627 \u062a\u06a9\u0631\u0627\u0631 \u06a9\u0646\u06cc\u062f<\/p>\n<ol>\n<li>\n<p>          \u06a9\u0646\u062a\u0631\u0644 \u062d\u0627\u0641\u0638\u0647 \u0646\u0647\u0627\u0646 \u0645\u0631\u0648\u0631\u06af\u0631 \u0628\u0627 \u0647\u062f\u0631\u0647\u0627\u06cc \u06a9\u0646\u062a\u0631\u0644 \u062d\u0627\u0641\u0638\u0647 \u0646\u0647\u0627\u0646<\/p>\n<\/li>\n<li>\n<p>          Cache-Montrol \u0648 Bundlers \u0645\u062f\u0631\u0646<\/p>\n<\/li>\n<li>\n<p>          \u0622\u06cc\u0627 \u0648\u0627\u0642\u0639\u0627\u064b \u0628\u0627\u06cc\u062f \u0647\u0645\u0647 \u0627\u06cc\u0646\u0647\u0627 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0633\u0627\u062f\u0647 \u062e\u0648\u062f \u0628\u062f\u0627\u0646\u0645\u061f<\/p>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<p>\u0627\u06cc\u0646 \u0631\u0648\u0632\u0647\u0627 \u060c \u0628\u0627 \u0631\u0648\u0646\u0642 \u062a\u0648\u0644\u06cc\u062f \u06a9\u062f AI \u060c \u0627\u0647\u0645\u06cc\u062a \u0646\u0648\u0634\u062a\u0646 \u06a9\u062f React \u062f\u0631 \u062d\u0627\u0644 \u06a9\u0627\u0647\u0634 \u0627\u0633\u062a. \u0647\u0631 \u06a9\u0633 \u0648 \u0647\u0631 \u0686\u06cc\u0632\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc\u06cc \u0631\u0627 \u06a9\u0647 \u0627\u06a9\u0646\u0648\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0646\u0648\u06cc\u0633\u062f. \u0627\u0645\u0627 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\u0627\u0646\u062c\u0627\u0645 \u0645\u06cc \u062f\u0647\u062f \u067e\u06cc\u0648\u0646\u062f\u0647\u0627\u06cc\u06cc \u0631\u0627 \u0628\u0647 \u067e\u0631\u0648\u0646\u062f\u0647 \u0647\u0627\u06cc CSS \u0648 JS \u0628\u0631\u0627\u06cc \u062a\u06a9\u0645\u06cc\u0644 &#8220;\u0645\u0633\u06cc\u0631 \u0628\u062d\u0631\u0627\u0646\u06cc&#8221; \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f. \u0633\u067e\u0633 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0647\u0627 \u0631\u0627 \u0628\u0631\u0627\u06cc \u062f\u0631\u06cc\u0627\u0641\u062a \u0622\u0646\u0647\u0627 \u0627\u0632 \u0633\u0631\u0648\u0631 \u0627\u0631\u0633\u0627\u0644 \u0645\u06cc \u06a9\u0646\u062f \u060c \u0645\u0646\u062a\u0638\u0631 \u0645\u06cc \u0645\u0627\u0646\u062f \u062a\u0627 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0634\u0648\u062f \u060c \u0622\u0646\u0647\u0627 \u0631\u0627 \u067e\u0631\u062f\u0627\u0632\u0634 \u0645\u06cc \u06a9\u0646\u062f \u060c \u0647\u0645\u0647 \u0627\u06cc\u0646 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\u0628\u062d\u0631\u0627\u0646\u06cc&#8221; \u0686\u06cc\u0632\u06cc \u0634\u0628\u06cc\u0647 \u0628\u0647 \u0627\u06cc\u0646 (\u062a\u0642\u0631\u06cc\u0628\u0627\u064b) \u0627\u0633\u062a:<\/p>\n<ul>\n<li>\u0645\u0631\u0648\u0631\u06af\u0631 \u062a\u062c\u0632\u06cc\u0647 HTML \u0627\u0648\u0644\u06cc\u0647 \u0631\u0627 \u0634\u0631\u0648\u0639 \u0645\u06cc \u06a9\u0646\u062f<\/li>\n<li>\u062f\u0631 \u062d\u06cc\u0646 \u0627\u0646\u062c\u0627\u0645 \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u060c \u067e\u06cc\u0648\u0646\u062f\u0647\u0627\u06cc\u06cc \u0631\u0627 \u0628\u0647 \u0645\u0646\u0627\u0628\u0639 CSS \u0648 JS \u0627\u0632 <code\/> tag.<\/li>\n<li>Then, it kicks off the downloading process and waits for blocking resources to finish the download.<\/li>\n<li>While waiting, it continues with processing HTML if possible.<\/li>\n<li>After all the critical resources are received, they are processed as well.<\/li>\n<li>And finally, it finishes whatever needs to be done and paints the actual pixels of the interface.<\/li>\n<\/ul>\n<p>This point in time is what we know as <strong>First Paint<\/strong> (FP)<strong>.<\/strong> It&#8217;s the very first time the user has an opportunity to see something on the screen. Whether it will happen or not depends on the HTML the server sent. If there is something meaningful there, like a text or an image, then this point will also be when the First Contentful Paint (FCP) happened. If the HTML is just an empty div, then the FCP will happen later.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F06474chzhf5o32liau8d.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"497\" title=\"\"><\/p>\n<p><strong>First Contentful Paint (FCP)<\/strong> is one of the most important performance metrics since it measures <em>perceived initial load.<\/em> Basically, it is the user&#8217;s first impression of how fast your website is.<\/p>\n<p>Until this moment, the users are just biting their nails while staring at the blank screen. According to Google, a good FCP number is <strong>below 1.8 seconds<\/strong>. After that, the users will start losing interest in what your website can offer and might start leaving.<\/p>\n<p>However, FCP is not perfect. If the website starts its load with a spinner or some loading screen, the FCP metric will represent that. But it&#8217;s highly unlikely that the user navigated to the website just to check out the fancy loading screen. Most of the time, they want to access the content.<\/p>\n<p>For this, the browser needs to finish the work it started. It waits for the rest of the non-blocking JavaScript, executes it, applies changes that originated from it to the DOM on the screen, downloads images, and otherwise polishes the user experience.<\/p>\n<p>Somewhere during this process is when the Largest Contentful Paint (LCP) time happens. Instead of the very first element, like FCP, it represents the main content area on the page &#8211; the largest text, image, or video visible in the viewport. According to Google, this number ideally should be <strong>below 2.5 seconds<\/strong>. More than that, and the users will think the website is slow.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F3avticlk6ezqztlmvh4s.png\" alt=\"\u062a\u0648\u0636\u06cc\u062d\u0627\u062a \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"394\" title=\"\"><\/p>\n<p>\u0647\u0645\u0647 \u0627\u06cc\u0646 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627 \u0628\u062e\u0634\u06cc \u0627\u0632 \u0648\u0628 \u0633\u0627\u06cc\u062a \u0647\u0627\u06cc Google \u0647\u0633\u062a\u0646\u062f &#8211; \u0645\u062c\u0645\u0648\u0639\u0647 \u0627\u06cc \u0627\u0632 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0646\u0634\u0627\u0646 \u062f\u0647\u0646\u062f\u0647 \u062a\u062c\u0631\u0628\u0647 \u06a9\u0627\u0631\u0628\u0631 \u062f\u0631 \u06cc\u06a9 \u0635\u0641\u062d\u0647 \u0627\u0633\u062a. LCP \u06cc\u06a9\u06cc \u0627\u0632 \u0627\u06cc\u0646 \u0633\u0647 \u0627\u0633\u062a <strong>\u0648\u06cc\u062a\u0627\u06cc \u0627\u0635\u0644\u06cc \u0648\u0628<\/strong> &#8211; \u0633\u0647 \u0645\u0639\u06cc\u0627\u0631 \u06a9\u0647 \u0628\u062e\u0634 \u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u062a\u062c\u0631\u0628\u0647 \u06a9\u0627\u0631\u0628\u0631 \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f. <strong>LCP<\/strong> \u0645\u0633\u0626\u0648\u0644 <strong><em>\u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc<\/em><\/strong>\u0628\u0634\u0631<\/p>\n<p>\u0627\u06cc\u0646 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0644\u0627\u06cc\u062a \u0647\u0627\u0648\u0633 \u0627\u0646\u062f\u0627\u0632\u0647 \u06af\u06cc\u0631\u06cc \u06a9\u0631\u062f. Lighthouse \u06cc\u06a9 \u0627\u0628\u0632\u0627\u0631 \u0639\u0645\u0644\u06a9\u0631\u062f Google \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 Chrome Devtools \u06cc\u06a9\u067e\u0627\u0631\u0686\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a \u0648 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u067e\u0648\u0633\u062a\u0647 \u060c \u0631\u0627\u0628\u0637 \u0648\u0628 \u06cc\u0627 \u0645\u0627\u0698\u0648\u0644 \u06af\u0631\u0647 \u0627\u062c\u0631\u0627 \u0634\u0648\u062f. \u0634\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u0622\u0646 \u0628\u0647 \u0635\u0648\u0631\u062a \u0645\u0627\u0698\u0648\u0644 \u06af\u0631\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f \u062a\u0627 \u0622\u0646 \u0631\u0627 \u062f\u0631 \u062f\u0627\u062e\u0644 \u0633\u0627\u062e\u062a \u062e\u0648\u062f \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f \u0648 \u0631\u06af\u0631\u0633\u06cc\u0648\u0646 \u0631\u0627 \u0642\u0628\u0644 \u0627\u0632 \u062a\u0648\u0644\u06cc\u062f \u0622\u0646\u0647\u0627 \u062a\u0634\u062e\u06cc\u0635 \u062f\u0647\u06cc\u062f. \u0627\u0632 \u0646\u0633\u062e\u0647 \u06cc\u06a9\u067e\u0627\u0631\u0686\u0647 DevTools \u0628\u0631\u0627\u06cc \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u0648 \u0622\u0632\u0645\u0627\u06cc\u0634 \u0645\u062d\u0644\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. \u0648 \u0646\u0633\u062e\u0647 \u0648\u0628 \u0628\u0631\u0627\u06cc \u0628\u0631\u0631\u0633\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u0631\u0642\u0628\u0627.<\/p>\n<p>\u0647\u0645\u0647 \u0645\u0648\u0627\u0631\u062f \u0641\u0648\u0642 \u062a\u0648\u0636\u06cc\u062d\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0645\u062e\u062a\u0635\u0631 \u0648 \u0633\u0627\u062f\u0647 \u062f\u0631 \u0645\u0648\u0631\u062f \u0631\u0648\u0646\u062f \u0627\u0633\u062a. \u0627\u0645\u0627 \u0627\u06cc\u0646 \u062f\u0631 \u062d\u0627\u0644 \u062d\u0627\u0636\u0631 \u0645\u062e\u0641\u0641 \u0648 \u062a\u0626\u0648\u0631\u06cc \u0632\u06cc\u0627\u062f\u06cc \u0628\u0631\u0627\u06cc \u0686\u0631\u062e\u0634 \u0633\u0631 \u0634\u062e\u0635 \u0627\u0633\u062a. \u0628\u0631\u0627\u06cc \u0645\u0646 \u0634\u062e\u0635\u0627\u064b \u060c \u062e\u0648\u0627\u0646\u062f\u0646 \u0686\u06cc\u0632\u06cc \u0634\u0628\u06cc\u0647 \u0628\u0647 \u0627\u06cc\u0646 \u0641\u0627\u06cc\u062f\u0647 \u0627\u06cc \u0646\u062f\u0627\u0631\u062f. \u0645\u0646 \u0641\u0648\u0631\u0627\u064b \u0647\u0645\u0647 \u0686\u06cc\u0632 \u0631\u0627 \u0641\u0631\u0627\u0645\u0648\u0634 \u0645\u06cc \u06a9\u0646\u0645 \u0645\u06af\u0631 \u0627\u06cc\u0646\u06a9\u0647 \u0628\u062a\u0648\u0627\u0646\u0645 \u0622\u0646 \u0631\u0627 \u062f\u0631 \u0639\u0645\u0644 \u0628\u0628\u06cc\u0646\u0645 \u0648 \u0628\u0627 \u062f\u0633\u062a \u062e\u0648\u062f\u0645 \u0628\u0627 \u0622\u0646 \u0628\u0627\u0632\u06cc \u06a9\u0646\u0645.<\/p>\n<p>\u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639 \u062e\u0627\u0635 \u060c \u0645\u0646 \u0633\u0627\u062f\u0647 \u062a\u0631\u06cc\u0646 \u0631\u0627\u0647 \u0628\u0631\u0627\u06cc \u062f\u0631\u06a9 \u06a9\u0627\u0645\u0644 \u0645\u0641\u0627\u0647\u06cc\u0645 \u060c \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0633\u0646\u0627\u0631\u06cc\u0648\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u062f\u0631 \u06cc\u06a9 \u0635\u0641\u062d\u0647 \u0646\u06cc\u0645\u0647 \u0648\u0627\u0642\u0639\u06cc \u0648 \u062f\u06cc\u062f\u0646 \u0686\u06af\u0648\u0646\u06af\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u0646\u062a\u06cc\u062c\u0647 \u0647\u0633\u062a\u0646\u062f. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0642\u0628\u0644 \u0627\u0632 \u0627\u0646\u062c\u0627\u0645 \u062a\u0626\u0648\u0631\u06cc \u062d\u062a\u06cc \u0628\u06cc\u0634\u062a\u0631 \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u0645 (\u0648 \u0686\u06cc\u0632\u0647\u0627\u06cc \u0628\u06cc\u0634\u062a\u0631\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f!).<\/p>\n<h3 id=\"part2.1\"><span class=\"ez-toc-section\" id=\"%D8%B1%D8%A7%D9%87_%D8%A7%D9%86%D8%AF%D8%A7%D8%B2%DB%8C_%D9%BE%D8%B1%D9%88%DA%98%D9%87\"><\/span>\n<p>  \u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u067e\u0631\u0648\u0698\u0647<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062f\u0631 \u0635\u0648\u0631\u062a \u062a\u0645\u0627\u06cc\u0644 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u062a\u0645\u0627\u0645 \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0647\u0627\u06cc \u0632\u06cc\u0631 \u0631\u0627 \u062f\u0631 \u067e\u0631\u0648\u0698\u0647 \u062e\u0648\u062f \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u062f &#8211; \u0646\u062a\u0627\u06cc\u062c \u0628\u0627\u06cc\u062f \u06a9\u0645 \u0648 \u0628\u06cc\u0634 \u06cc\u06a9\u0633\u0627\u0646 \u0628\u0627\u0634\u062f. \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u0645\u062d\u06cc\u0637 \u06a9\u0646\u062a\u0631\u0644 \u0634\u062f\u0647 \u062a\u0631 \u0648 \u0633\u0627\u062f\u0647 \u062a\u0631 \u060c \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644 \u060c \u062a\u0648\u0635\u06cc\u0647 \u0645\u06cc \u06a9\u0646\u0645 \u0627\u0632 \u06cc\u06a9 \u067e\u0631\u0648\u0698\u0647 \u0645\u0637\u0627\u0644\u0639\u0647 \u0627\u06cc \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0622\u0645\u0627\u062f\u0647 \u06a9\u0631\u062f\u0647 \u0627\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0647 \u0627\u06cc\u0646\u062c\u0627 \u062f\u0633\u062a\u0631\u0633\u06cc \u067e\u06cc\u062f\u0627 \u06a9\u0646\u06cc\u062f: https:\/\/github.com\/developerway\/initial-load-performance<\/p>\n<p>\u0628\u0627 \u0646\u0635\u0628 \u0647\u0645\u0647 \u0648\u0627\u0628\u0633\u062a\u06af\u06cc \u0647\u0627 \u0634\u0631\u0648\u0639 \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>npm install\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0633\u0627\u062e\u062a \u067e\u0631\u0648\u0698\u0647:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>npm run build\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0648 \u0634\u0631\u0648\u0639 \u0633\u0631\u0648\u0631:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>npm run start\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0634\u0645\u0627 \u0628\u0627\u06cc\u062f \u06cc\u06a9 \u0635\u0641\u062d\u0647 \u062f\u0627\u0634\u0628\u0648\u0631\u062f \u062e\u0648\u0628 \u0631\u0627 \u062f\u0631 &#8220;http: \/\/ localhost: 3000&#8221; \u0645\u0634\u0627\u0647\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<h3 id=\"part2.2\"><span class=\"ez-toc-section\" id=\"%DA%A9%D8%A7%D9%88%D8%B4_%D8%AF%D8%B1_%D9%85%D9%88%D8%B1%D8%AF_devtools_%D9%84%D8%A7%D8%B2%D9%85\"><\/span>\n<p>  \u06a9\u0627\u0648\u0634 \u062f\u0631 \u0645\u0648\u0631\u062f devtools \u0644\u0627\u0632\u0645<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0648\u0628 \u0633\u0627\u06cc\u062a\u06cc \u0631\u0627 \u06a9\u0647 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u062f\u0631 Chrome \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u06a9\u0646\u06cc\u062f \u0628\u0627\u0632 \u06a9\u0646\u06cc\u062f \u0648 Devtools Chrome \u0631\u0627 \u0628\u0627\u0632 \u06a9\u0646\u06cc\u062f. \u067e\u0627\u0646\u0644 \u0647\u0627\u06cc &#8220;\u0639\u0645\u0644\u06a9\u0631\u062f&#8221; \u200b\u200b\u0648 &#8220;\u0641\u0627\u0646\u0648\u0633 \u062f\u0631\u06cc\u0627\u06cc\u06cc&#8221; \u0631\u0627 \u062f\u0631 \u0622\u0646\u062c\u0627 \u067e\u06cc\u062f\u0627 \u06a9\u0646\u06cc\u062f \u0648 \u0622\u0646\u0647\u0627 \u0631\u0627 \u0628\u0647 \u0647\u0645 \u0646\u0632\u062f\u06cc\u06a9 \u06a9\u0646\u06cc\u062f. \u0645\u0627 \u0628\u0647 \u0647\u0631 \u062f\u0648\u06cc \u0622\u0646\u0647\u0627 \u0627\u062d\u062a\u06cc\u0627\u062c \u062e\u0648\u0627\u0647\u06cc\u0645 \u062f\u0627\u0634\u062a.<\/p>\n<p>\u0647\u0645\u0686\u0646\u06cc\u0646 \u060c \u0642\u0628\u0644 \u0627\u0632 \u0627\u0646\u062c\u0627\u0645 \u0647\u0631 \u06a9\u0627\u0631 \u062f\u06cc\u06af\u0631\u06cc \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u060c \u062d\u062a\u0645\u0627\u064b \u06a9\u0627\u062f\u0631 \u0627\u0646\u062a\u062e\u0627\u0628 &#8220;Disable Cache&#8221; \u0631\u0627 \u0641\u0639\u0627\u0644 \u06a9\u0631\u062f\u0647 \u0627\u06cc\u062f. \u0627\u06cc\u0646 \u0628\u0627\u06cc\u062f \u062f\u0631 \u0635\u0641\u062d\u0647 \u0634\u0628\u06a9\u0647 \u062f\u0631 \u0628\u0627\u0644\u0627 \u0628\u0627\u0634\u062f.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fqeilqnotalwin0jic4jv.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"506\" height=\"188\" title=\"\"><\/p>\n<p>\u0627\u06cc\u0646 \u0628\u0647 \u06af\u0648\u0646\u0647 \u0627\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u0627\u0632\u062f\u06cc\u062f \u06a9\u0646\u0646\u062f\u06af\u0627\u0646 \u0628\u0627\u0631 \u0627\u0648\u0644 \u0631\u0627 \u062a\u0642\u0644\u06cc\u062f \u06a9\u0646\u06cc\u0645 &#8211; \u0627\u0641\u0631\u0627\u062f\u06cc \u06a9\u0647 \u0642\u0628\u0644\u0627\u064b \u062f\u0631 \u0648\u0628 \u0633\u0627\u06cc\u062a \u0645\u0627 \u0646\u0628\u0648\u062f\u0647 \u0627\u0646\u062f \u0648 \u0647\u0646\u0648\u0632 \u0647\u06cc\u0686 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\u0645\u0634\u0627\u0647\u062f\u0647 \u06a9\u0646\u06cc\u062f \u0648 \u062f\u06a9\u0645\u0647 &#8220;\u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0635\u0641\u062d\u0647 \u0628\u0627\u0631&#8221; \u0631\u0627 \u0645\u0634\u0627\u0647\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fl7w9s4g8ajggtksl1v87.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"547\" title=\"\"><\/p>\n<p>\u062d\u0627\u0644\u062a &#8220;\u0646\u0627\u0648\u0628\u0631\u06cc&#8221; \u0631\u0648\u0634\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0645\u0627 \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0628\u062e\u0634 \u0628\u0647 \u0622\u0646 \u0639\u0644\u0627\u0642\u0647 \u0645\u0646\u062f\u06cc\u0645 &#8211; \u062a\u062c\u0632\u06cc\u0647 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\u0647\u0645\u0647 \u0686\u06cc\u0632 \u0647\u0645\u06cc\u0634\u0647 &#8220;\u0631\u0648\u06cc \u062f\u0633\u062a\u06af\u0627\u0647 \u0645\u0646 \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f&#8221;.<\/p>\n<p>\u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f \u0627\u06cc\u0646 \u0646\u06cc\u0632 \u0648\u062c\u0648\u062f \u062e\u0648\u0627\u0647\u062f \u062f\u0627\u0634\u062a:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F65d7f0g905d6ifwke5y4.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"320\" title=\"\"><\/p>\n<p>\u0645\u0642\u0627\u062f\u06cc\u0631 FCP \u0648 LCP \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0628\u0647 \u0622\u0646 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u06cc\u0645 \u062f\u0631\u0633\u062a \u062f\u0631 \u0628\u0627\u0644\u0627 \u0627\u0633\u062a.<\/p>\n<p>\u062f\u0631 \u0632\u06cc\u0631 \u060c \u0644\u06cc\u0633\u062a\u06cc \u0627\u0632 \u067e\u06cc\u0634\u0646\u0647\u0627\u062f\u0627\u062a \u0631\u0627 \u0645\u0634\u0627\u0647\u062f\u0647 \u062e\u0648\u0627\u0647\u06cc\u062f \u06a9\u0631\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0634\u0645\u0627 \u062f\u0631 \u0628\u0647\u0628\u0648\u062f \u0646\u0645\u0631\u0627\u062a \u062e\u0648\u062f \u06a9\u0645\u06a9 \u06a9\u0646\u062f.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fzzppkn2nbnqzydmvsdip.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"212\" title=\"\"><\/p>\n<p>\u0647\u0631 \u067e\u06cc\u0634\u0646\u0647\u0627\u062f\u06cc \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u06af\u0633\u062a\u0631\u0634 \u062f\u0627\u062f \u060c \u0648 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u062f\u0642\u06cc\u0642 \u062a\u0631\u06cc \u0631\u0627 \u062f\u0631 \u0622\u0646\u062c\u0627 \u067e\u06cc\u062f\u0627 \u062e\u0648\u0627\u0647\u06cc\u062f \u06a9\u0631\u062f \u060c \u0648 \u06af\u0627\u0647\u06cc \u067e\u06cc\u0648\u0646\u062f\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0622\u0646 \u0645\u0648\u0636\u0648\u0639 \u062e\u0627\u0635 \u0631\u0627 \u062a\u0648\u0636\u06cc\u062d \u0645\u06cc \u062f\u0647\u062f. \u0647\u0645\u0647 \u0622\u0646\u0647\u0627 \u0631\u0627 \u0646\u0645\u06cc \u062a\u0648\u0627\u0646 \u0639\u0645\u0644\u06cc \u06a9\u0631\u062f \u060c \u0627\u0645\u0627 \u0627\u06cc\u0646 \u06cc\u06a9 \u0627\u0628\u0632\u0627\u0631 \u0628\u0627\u0648\u0631\u0646\u06a9\u0631\u062f\u0646\u06cc \u0628\u0631\u0627\u06cc \u0634\u0631\u0648\u0639 \u0639\u0645\u0644\u06a9\u0631\u062f \u0648 \u06a9\u0633\u0628 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0628\u06cc\u0634\u062a\u0631 \u062f\u0631 \u0645\u0648\u0631\u062f \u0686\u06cc\u0632\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0627\u0633\u062a \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0622\u0646 \u0631\u0627 \u0628\u0647\u0628\u0648\u062f \u0628\u062e\u0634\u062f. \u0645\u06cc \u062a\u0648\u0627\u0646 \u0633\u0627\u0639\u062a \u0647\u0627 \u0631\u0627 \u0635\u0631\u0641 \u062e\u0648\u0627\u0646\u062f\u0646 \u0622\u0646 \u06af\u0632\u0627\u0631\u0634 \u0647\u0627 \u0648 \u067e\u06cc\u0648\u0646\u062f\u0647\u0627\u06cc \u0645\u0631\u0628\u0648\u0637\u0647 \u0635\u0631\u0641 \u06a9\u0631\u062f.<\/p>\n<p>\u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644 \u060c Lighthouse \u0641\u0642\u0637 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0633\u0637\u062d \u0633\u0637\u062d \u0631\u0627 \u0628\u0647 \u0634\u0645\u0627 \u0645\u06cc \u062f\u0647\u062f \u0648 \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0646\u0645\u06cc \u062f\u0647\u062f \u0633\u0646\u0627\u0631\u06cc\u0648\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0645\u0627\u0646\u0646\u062f \u06cc\u06a9 \u0634\u0628\u06a9\u0647 \u0622\u0647\u0633\u062a\u0647 \u06cc\u0627 CPU \u06a9\u0645 \u0631\u0627 \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u06a9\u0646\u06cc\u062f. \u0627\u06cc\u0646 \u0641\u0642\u0637 \u06cc\u06a9 \u0646\u0642\u0637\u0647 \u0648\u0631\u0648\u062f \u0639\u0627\u0644\u06cc \u0648 \u0627\u0628\u0632\u0627\u0631\u06cc \u0639\u0627\u0644\u06cc \u0628\u0631\u0627\u06cc \u0631\u062f\u06cc\u0627\u0628\u06cc \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u0639\u0645\u0644\u06a9\u0631\u062f \u062f\u0631 \u0637\u0648\u0644 \u0632\u0645\u0627\u0646 \u0627\u0633\u062a. \u0628\u0631\u0627\u06cc \u062d\u0641\u0631 \u0639\u0645\u06cc\u0642 \u062a\u0631 \u0628\u0647 \u0622\u0646\u0686\u0647 \u0627\u062a\u0641\u0627\u0642 \u0645\u06cc \u0627\u0641\u062a\u062f \u060c \u0645\u0627 \u0628\u0647 <strong>&#8220;\u0639\u0645\u0644\u06a9\u0631\u062f&#8221;<\/strong> \u067e\u0627\u0646\u0644.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"%DA%A9%D8%A7%D9%88%D8%B4_%D8%AF%D8%B1_%D8%B5%D9%81%D8%AD%D9%87_%D8%B9%D9%85%D9%84%DA%A9%D8%B1%D8%AF\"><\/span>\n<p>  \u06a9\u0627\u0648\u0634 \u062f\u0631 \u0635\u0641\u062d\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0627\u0648\u0644\u06cc\u0646 \u0628\u0627\u0631 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0634\u062f \u060c \u067e\u0627\u0646\u0644 \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0627\u06cc\u062f \u0686\u06cc\u0632\u06cc \u0634\u0628\u06cc\u0647 \u0628\u0647 \u0627\u06cc\u0646 \u0628\u0627\u0634\u062f:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F875fy0vlwxytna95060o.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"648\" title=\"\"><\/p>\n<p>\u0627\u06cc\u0646 \u0633\u0647 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0627\u0635\u0644\u06cc \u0648\u0628 \u0648\u06cc\u062a\u0627\u0645\u0627\u0646 \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u06a9\u0647 \u06cc\u06a9\u06cc \u0627\u0632 \u0622\u0646\u0647\u0627 LCP \u0645\u0627 \u0627\u0633\u062a \u060c \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0634\u0628\u06a9\u0647 \u0622\u0647\u0633\u062a\u0647 \u0648 CPU \u0648 \u0627\u0645\u06a9\u0627\u0646 \u0636\u0628\u0637 \u062c\u0632\u0626\u06cc\u0627\u062a \u0639\u0645\u0644\u06a9\u0631\u062f 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src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fgobx5knxxopbzvqmwzek.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"652\" title=\"\"><\/p>\n<p>\u0634\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0628\u0628\u06cc\u0646\u06cc\u062f \u06a9\u0647 \u0627\u062a\u0641\u0627\u0642\u06cc \u062f\u0631 \u0648\u0628 \u0633\u0627\u06cc\u062a \u0631\u062e \u0645\u06cc \u062f\u0647\u062f \u060c \u0627\u0645\u0627 \u062e\u06cc\u0644\u06cc \u0628\u06cc\u0634\u062a\u0631 \u0646\u06cc\u0633\u062a. \u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0631\u0648\u06cc \u0622\u0646 \u0634\u0646\u0627\u0648\u0631 \u0645\u06cc \u0634\u0648\u06cc\u062f &#8211; \u062a\u0635\u0648\u06cc\u0631 \u0622\u0646\u0686\u0647 \u0627\u062a\u0641\u0627\u0642 \u0645\u06cc 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\u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F6fs0kc68998ejvcdnecy.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"652\" title=\"\"><\/p>\n<p>\u0627\u06af\u0631 \u062f\u0631 \u062d\u0627\u0644 \u06a9\u0627\u0631 \u0628\u0631 \u0631\u0648\u06cc \u067e\u0631\u0648\u0698\u0647 \u0645\u0637\u0627\u0644\u0639\u0647 \u0647\u0633\u062a\u06cc\u062f \u060c \u062f\u0642\u06cc\u0642\u0627\u064b \u0647\u0645\u0627\u0646 \u062a\u0635\u0648\u06cc\u0631 \u0631\u0627 \u0645\u0634\u0627\u0647\u062f\u0647 \u062e\u0648\u0627\u0647\u06cc\u062f \u06a9\u0631\u062f \u060c \u0648 \u0627\u06cc\u0646 \u062a\u0635\u0648\u06cc\u0631 \u0645\u0637\u0627\u0628\u0642 \u0628\u0627 \u0622\u0646\u0686\u0647 \u062f\u0631 \u0628\u062e\u0634 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\u0631\u0648\u0646\u062f.<\/li>\n<li>\u06cc\u06a9\u06cc \u0627\u0632 \u0622\u0646\u0647\u0627 (\u0632\u0631\u062f) \u0628\u0631\u0627\u06cc JavaScript \u0627\u0633\u062a &#8211; \u0645\u0633\u062f\u0648\u062f \u06a9\u0631\u062f\u0646.<\/li>\n<li>\u06cc\u06a9\u06cc \u062f\u06cc\u06af\u0631 (\u0628\u0646\u0641\u0634) \u0628\u0631\u0627\u06cc CSS \u0627\u0633\u062a \u060c \u0648 \u0627\u06cc\u0646 \u06cc\u06a9\u06cc \u0645\u0633\u062f\u0648\u062f \u0634\u062f\u0647 \u0627\u0633\u062a.<\/li>\n<\/ul>\n<p>\u0627\u06af\u0631 \u06a9\u062f \u067e\u0631\u0648\u0698\u0647 \u0645\u0637\u0627\u0644\u0639\u0647 \u062e\u0648\u062f \u0631\u0627 \u0627\u06a9\u0646\u0648\u0646 \u0628\u0627\u0632 \u06a9\u0631\u062f\u0647 \u0648 \u0628\u0647 \u062f\u0627\u062e\u0644 \u0646\u06af\u0627\u0647 \u06a9\u0646\u06cc\u062f <code>dist<\/code> \u067e\u0648\u0634\u0647 \u060c \u06a9\u062f \u0645\u0646\u0628\u0639 \u0628\u0627 \u0627\u06cc\u0646 \u0631\u0641\u062a\u0627\u0631 \u0645\u0637\u0627\u0628\u0642\u062a \u062f\u0627\u0631\u062f:<\/p>\n<ul>\n<li>\u0648\u062c\u0648\u062f \u062e\u0648\u0627\u0647\u062f \u062f\u0627\u0634\u062a <code>index.html<\/code> \u067e\u0631\u0648\u0646\u062f\u0647 <code>.css<\/code> \u0648\u062a <code>.js<\/code> \u067e\u0631\u0648\u0646\u062f\u0647 \u0647\u0627\u06cc \u062f\u0627\u062e\u0644 <code>assets<\/code> \u067e\u0648\u0634\u0647<\/li>\n<li>\u062f\u0631 \u062f\u0627\u062e\u0644 <code>index.html<\/code> \u067e\u0631\u0648\u0646\u062f\u0647 \u062f\u0631 <code\/> section, there will be a <code><link\/><\/code> \u0628\u0631\u0686\u0633\u0628 \u0622\u0646 \u0631\u0627 \u0628\u0647 \u067e\u0631\u0648\u0646\u062f\u0647 CSS \u0646\u0634\u0627\u0646 \u062f\u0647\u06cc\u062f. \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0645\u06cc \u062f\u0627\u0646\u06cc\u0645 \u060c \u0645\u0646\u0627\u0628\u0639 CSS \u062f\u0631 <code\/> \u0645\u0633\u062f\u0648\u062f \u06a9\u0646\u0646\u062f\u0647 \u0647\u0633\u062a\u0646\u062f \u060c \u0628\u0647 \u0637\u0648\u0631\u06cc \u06a9\u0647 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc \u0634\u0648\u062f.<\/li>\n<li>\u0647\u0645\u0686\u0646\u06cc\u0646 \u060c \u062f\u0627\u062e\u0644 <code\/> \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f <code><script\/><\/code> tag that points to the JavaScript file inside the <code>asset<\/code> folder. It&#8217;s neither deferred nor async, but it has <code>type=\"module\"<\/code>. Those are deferred automatically, so this also checks out &#8211; the JavaScript file in the panel is non-blocking.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Additional_Exercise\"><\/span>\n  Additional Exercise\n<span class=\"ez-toc-section-end\"><\/span><\/h4>\nIf you have a project you&#8217;re working on, record the initial load performance for it and look into the Network panel. You&#8217;ll likely see many more resources downloaded.\n<ul>\n<li>How many render-blocking resources do you have? Are all of them necessary?<\/li>\n<li>Do you know where the &#8220;entry&#8221; point for your project is and how blocking resources appear in the <code\/> section? Try building the project with your variation of <code>npm build<\/code> and search for them. Hint:\n<ul>\n<li>If you have a pure webpack-based project, look for <code>webpack.config.js<\/code> file. Paths to the HTML entry points should be inside.<\/li>\n<li>if you&#8217;re on Vite, look into <code>dist<\/code> folder &#8211; same as with the study project<\/li>\n<li>if you&#8217;re on the Next.js App router &#8211; take a peek into <code>.next\/server\/app<\/code>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\nUnder the Network section, you can find the <strong>Frames<\/strong> and <strong>Timing<\/strong> sections.\n<img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fr3lyjkw8fkvjx54vn13m.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"652\"\/>\nThose are very cool. In the Timing section, you can see all the metrics we discussed before (FP, FCP, LCP), plus a few more we haven&#8217;t yet. When hovering over the metrics, you can see the exact time it took. Clicking on them will update the &#8220;summary&#8221; tab at the very bottom, where you&#8217;ll find information on what this metric is and a link to learn more. DevTools are all about educating people these days.\nAnd finally, the <strong>Main<\/strong> section. This is what is happening in the main thread during the timeline recorded.\n<img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fbt1pfpg1h75zmpm081eh.png\" alt = \"\u062a\u0648\u0636\u06cc\u062d\u0627\u062a \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"652\"\/>\n\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0686\u06cc\u0632\u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f &#8220;\u067e\u0627\u0631\u0633 HTML&#8221; \u06cc\u0627 &#8220;\u0686\u06cc\u062f\u0645\u0627\u0646&#8221; \u0631\u0627 \u0628\u0628\u06cc\u0646\u06cc\u0645 \u0648 \u0686\u0647 \u0645\u062f\u062a \u0637\u0648\u0644 \u06a9\u0634\u06cc\u062f. \u0686\u06cc\u0632\u0647\u0627\u06cc \u0632\u0631\u062f \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a 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\u0645\u06cc \u062e\u0648\u0627\u0633\u062a\u0645 \u0628\u0627\u0631 \u0627\u0648\u0644\u06cc\u0647 \u0631\u0627 \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0633\u0631\u0639\u062a \u062f\u0647\u0645 \u060c \u0628\u0627\u06cc\u062f \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u0645 \u06a9\u0647 \u0686\u0631\u0627 \u067e\u0627\u0631\u0633 HTML \u0628\u0633\u06cc\u0627\u0631 \u06a9\u0646\u062f \u0627\u0633\u062a &#8211; \u0627\u06cc\u0646 \u0637\u0648\u0644\u0627\u0646\u06cc \u062a\u0631\u06cc\u0646 \u06a9\u0627\u0631 \u062f\u0631 \u0646\u0645\u0648\u062f\u0627\u0631 \u0627\u0633\u062a.\n\u06cc\u0627 \u0627\u06af\u0631 \u0628\u0647 \u0627\u0639\u062f\u0627\u062f \u0645\u0637\u0644\u0642 \u0646\u06af\u0627\u0647 \u06a9\u0646\u06cc\u0645 &#8211; \u0645\u0646 \u0646\u0628\u0627\u06cc\u062f \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u06a9\u0627\u0631\u06cc \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u0645 \u060c \u0627\u0632 \u0646\u0638\u0631 \u0639\u0645\u0644\u06a9\u0631\u062f. \u06a9\u0644 \u0628\u0627\u0631 \u0627\u0648\u0644\u06cc\u0647 \u06a9\u0645\u062a\u0631 \u0627\u0632 200 \u0645\u06cc\u0644\u06cc \u0645\u062a\u0631 \u0637\u0648\u0644 \u0645\u06cc \u06a9\u0634\u062f \u0648 \u0627\u0632 \u0622\u0633\u062a\u0627\u0646\u0647 \u062a\u0648\u0635\u06cc\u0647 \u0634\u062f\u0647 Google \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f \ud83d\ude42 \u0627\u0645\u0627 \u0627\u06cc\u0646 \u0627\u062a\u0641\u0627\u0642 \u0645\u06cc \u0627\u0641\u062a\u062f \u0632\u06cc\u0631\u0627 \u0645\u0646 \u0627\u06cc\u0646 \u062a\u0633\u062a \u0631\u0627 \u0628\u0635\u0648\u0631\u062a \u0645\u062d\u0644\u06cc \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u0645 (\u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0647\u06cc\u0686 \u0647\u0632\u06cc\u0646\u0647 \u0648\u0627\u0642\u0639\u06cc \u0634\u0628\u06a9\u0647 \u0646\u062f\u0627\u0631\u062f) \u060c \u0628\u0631 \u0631\u0648\u06cc \u06cc\u06a9 \u0644\u067e \u062a\u0627\u067e \u0628\u0633\u06cc\u0627\u0631 \u0633\u0631\u06cc\u0639 \u0648 \u0628\u0627 \u06cc\u06a9 \u0633\u0631\u0648\u0631 \u0628\u0633\u06cc\u0627\u0631 \u0627\u0633\u0627\u0633\u06cc.\n\u0632\u0645\u0627\u0646 \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0632\u0646\u062f\u06af\u06cc \u0648\u0627\u0642\u0639\u06cc.\n<h3 id=\"part3.1\"><span class=\"ez-toc-section\" id=\"%D8%B3%D8%B1%D9%88%D8%B1_%D8%A8%D8%B3%DB%8C%D8%A7%D8%B1_%DA%A9%D9%86%D8%AF\"><\/span>\n  \u0633\u0631\u0648\u0631 \u0628\u0633\u06cc\u0627\u0631 \u06a9\u0646\u062f\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\u0627\u0648\u0644 \u0627\u0632 \u0647\u0645\u0647 \u060c \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0633\u0631\u0648\u0631 \u0631\u0627 \u0648\u0627\u0642\u0639 \u0628\u06cc\u0646\u0627\u0646\u0647 \u062a\u0631 \u06a9\u0646\u06cc\u0645. \u062f\u0631 \u062d\u0627\u0644 \u062d\u0627\u0636\u0631 \u060c \u0627\u0648\u0644\u06cc\u0646 \u0645\u0631\u062d\u0644\u0647 &#8220;\u0622\u0628\u06cc&#8221; \u062f\u0631 \u062d\u062f\u0648\u062f 50ms \u0637\u0648\u0644 \u0645\u06cc \u06a9\u0634\u062f \u060c 40ms \u06a9\u0647 \u0641\u0642\u0637 \u062f\u0631 \u0627\u0646\u062a\u0638\u0627\u0631 \u0622\u0646 \u0627\u0633\u062a.\n<img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fijsf8jj358dfd54jw1gg.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"594\" height=\"342\"\/>\n\u062f\u0631 \u0632\u0646\u062f\u06af\u06cc \u0648\u0627\u0642\u0639\u06cc \u060c \u0633\u0631\u0648\u0631 \u06a9\u0627\u0631\u0647\u0627 \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc \u062f\u0647\u062f \u060c \u0645\u062c\u0648\u0632\u0647\u0627 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc \u06a9\u0646\u062f \u060c \u0645\u0648\u0627\u062f \u062a\u0648\u0644\u06cc\u062f \u0645\u06cc \u06a9\u0646\u062f \u060c \u062f\u0648 \u0628\u0627\u0631 \u0645\u062c\u0648\u0632\u0647\u0627 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc \u06a9\u0646\u062f (\u0632\u06cc\u0631\u0627 \u06a9\u062f \u0645\u06cc\u0631\u0627\u062b \u0632\u06cc\u0627\u062f\u06cc \u062f\u0627\u0631\u062f \u0648 \u0628\u0631\u0631\u0633\u06cc \u0633\u0647 \u06af\u0627\u0646\u0647 \u06af\u0645 \u0634\u062f\u0647 \u0627\u0633\u062a) \u060c \u0648 \u062f\u0631 \u063a\u06cc\u0631 \u0627\u06cc\u0646 \u0635\u0648\u0631\u062a \u0634\u0644\u0648\u063a \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f.\n\u062d\u0631\u06a9\u062a \u0628\u0647 <code>backend\/index.ts<\/code> \u067e\u0631\u0648\u0646\u062f\u0647 \u062f\u0631 \u067e\u0631\u0648\u0698\u0647 \u0645\u0637\u0627\u0644\u0639\u0647 \u062e\u0648\u062f (https:\/\/github.com\/developerway\/initial-load-performance). \u0646\u0638\u0631 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0631\u0627 \u067e\u06cc\u062f\u0627 \u06a9\u0646\u06cc\u062f <code>\/\/ await sleep(500)<\/code>\u060c \u0648 \u0622\u0646 \u0631\u0627 \u0627\u0632 \u0628\u06cc\u0646 \u0646\u0628\u0631\u06cc\u062f. \u0627\u06cc\u0646 \u0627\u0645\u0631 \u0642\u0628\u0644 \u0627\u0632 \u0628\u0627\u0632\u06af\u0634\u062a HTML \u0628\u0647 \u0633\u0631\u0648\u0631 500ms \u0645\u06cc \u062f\u0647\u062f &#8211; \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc \u0631\u0633\u062f \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u0633\u0631\u0648\u0631 \u0642\u062f\u06cc\u0645\u06cc \u0648 \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0628\u0647 \u0627\u0646\u062f\u0627\u0632\u0647 \u06a9\u0627\u0641\u06cc \u0645\u0646\u0637\u0642\u06cc \u0627\u0633\u062a.\n\u062f\u0648\u0628\u0627\u0631\u0647 \u0633\u0627\u062e\u062a \u067e\u0631\u0648\u0698\u0647 (<code>npm run build<\/code>) \u060c \u062f\u0648\u0628\u0627\u0631\u0647 \u0634\u0631\u0648\u0639 \u06a9\u0646\u06cc\u062f (<code>npm run start<\/code>) \u0648 \u0636\u0628\u0637 \u0645\u062c\u062f\u062f \u0639\u0645\u0644\u06a9\u0631\u062f \u0631\u0627 \u062f\u0648\u0628\u0627\u0631\u0647 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f.\n\u0647\u06cc\u0686 \u0686\u06cc\u0632 \u062f\u0631 \u062c\u062f\u0648\u0644 \u0632\u0645\u0627\u0646\u06cc \u0628\u0647 \u062c\u0632 \u062e\u0637 \u0622\u0628\u06cc \u0627\u0648\u0644\u06cc\u0647 \u062a\u063a\u06cc\u06cc\u0631 \u0646\u06a9\u0631\u062f\u0647 \u0627\u0633\u062a &#8211; \u0627\u06a9\u0646\u0648\u0646 \u062f\u0631 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0628\u0627 \u0628\u0642\u06cc\u0647 \u0645\u0648\u0627\u062f \u0628\u0633\u06cc\u0627\u0631 \u0637\u0648\u0644\u0627\u0646\u06cc \u0627\u0633\u062a.\n<img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F6yf6l5ojrxov26gnhqgl.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"441\"\/>\n\u0627\u06cc\u0646 \u0648\u0636\u0639\u06cc\u062a \u0627\u0647\u0645\u06cc\u062a \u0646\u06af\u0627\u0647 \u0628\u0647 \u06a9\u0644 \u062a\u0635\u0648\u06cc\u0631 \u0648 \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u062a\u0646\u06af\u0646\u0627\u0647\u0627 \u0631\u0627 \u0642\u0628\u0644 \u0627\u0632 \u0627\u0646\u062c\u0627\u0645 \u0647\u0631\u06af\u0648\u0646\u0647 \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0631\u062c\u0633\u062a\u0647 \u0645\u06cc \u06a9\u0646\u062f. \u0645\u0642\u062f\u0627\u0631 LCP 650 \u0645\u06cc\u0644\u06cc\u0648\u0646 \u067e\u0648\u0646\u062f \u0627\u0633\u062a \u06a9\u0647 \u0627\u0632 \u0627\u06cc\u0646 \u062a\u0639\u062f\u0627\u062f 560 \u0645\u06cc\u0644\u06cc\u0648\u0646 \u067e\u0648\u0646\u062f \u062f\u0631 \u0627\u0646\u062a\u0638\u0627\u0631 HTML \u0627\u0648\u0644\u06cc\u0647 \u0635\u0631\u0641 \u0645\u06cc \u0634\u0648\u062f. \u0628\u062e\u0634 React \u0627\u0632 \u0622\u0646 \u062f\u0631 \u062d\u062f\u0648\u062f 50ms \u0627\u0633\u062a. \u062d\u062a\u06cc \u0627\u06af\u0631 \u0645\u0646 \u0628\u0647 \u0646\u0648\u0639\u06cc \u0628\u062a\u0648\u0627\u0646\u0645 \u0622\u0646 \u0631\u0627 \u0646\u0635\u0641 \u06a9\u0646\u0645 \u0648 \u0622\u0646 \u0631\u0627 \u0628\u0647 25 \u0645\u062a\u0631 \u06a9\u0627\u0647\u0634 \u062f\u0647\u0645 \u060c \u062f\u0631 \u062a\u0635\u0648\u06cc\u0631 \u06a9\u0644\u06cc \u060c \u0641\u0642\u0637 4 \u066a \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f. \u0648 \u06a9\u0627\u0647\u0634 \u0622\u0646 \u0628\u0647 \u0646\u0635\u0641 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f <em>\u062e\u06cc\u0644\u06cc<\/em> \u062a\u0644\u0627\u0634 \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u06cc\u06a9 \u0627\u0633\u062a\u0631\u0627\u062a\u0698\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0645\u0624\u062b\u0631\u062a\u0631 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062a\u0645\u0631\u06a9\u0632 \u0631\u0648\u06cc \u0633\u0631\u0648\u0631 \u0648 \u0641\u0647\u0645\u06cc\u062f\u0646 \u0686\u0631\u0627 \u0627\u06cc\u0646\u0642\u062f\u0631 \u06a9\u0646\u062f \u0628\u0627\u0634\u062f.\n<h3 id=\"part3.2\"><span class=\"ez-toc-section\" id=\"%D8%A7%D8%B2_%D9%BE%D9%87%D9%86%D8%A7%DB%8C_%D8%A8%D8%A7%D9%86%D8%AF_%D9%88_%D8%AA%D8%A3%D8%AE%DB%8C%D8%B1_%D9%85%D8%AE%D8%AA%D9%84%D9%81_%D8%AA%D9%82%D9%84%DB%8C%D8%AF_%D9%85%DB%8C_%DA%A9%D9%86%D8%AF\"><\/span>\n    \u0627\u0632 \u067e\u0647\u0646\u0627\u06cc \u0628\u0627\u0646\u062f \u0648 \u062a\u0623\u062e\u06cc\u0631 \u0645\u062e\u062a\u0644\u0641 \u062a\u0642\u0644\u06cc\u062f \u0645\u06cc \u06a9\u0646\u062f\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\u0647\u0645\u0647 \u062f\u0631 \u062f\u0646\u06cc\u0627\u06cc \u06cc\u06a9 \u0627\u0631\u062a\u0628\u0627\u0637 1 \u06af\u06cc\u06af\u0627\u0628\u06cc\u062a \u0632\u0646\u062f\u06af\u06cc \u0646\u0645\u06cc \u06a9\u0646\u0646\u062f. \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u060c \u062f\u0631 \u0627\u0633\u062a\u0631\u0627\u0644\u06cc\u0627 \u060c 50 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\u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"708\" height=\"452\"\/>\n\u0627\u06af\u0631 \u062f\u0631 \u0646\u0633\u062e\u0647 Chrome \u0634\u0645\u0627 \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f \u060c \u0647\u0645\u0627\u0646 \u062a\u0646\u0638\u06cc\u0645\u0627\u062a \u0628\u0627\u06cc\u062f \u062f\u0631 \u0628\u0631\u06af\u0647 \u0634\u0628\u06a9\u0647 \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0628\u0627\u0634\u062f.\n\u0628\u0627 \u0634\u0645\u0627\u0631\u0647 \u0647\u0627\u06cc \u0632\u06cc\u0631 \u06cc\u06a9 \u067e\u0631\u0648\u0641\u0627\u06cc\u0644 \u062c\u062f\u06cc\u062f \u062f\u0631 \u06a9\u0634\u0648\u06cc\u06cc &#8220;\u0634\u0628\u06a9\u0647&#8221; \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f:\n<ul>\n<li>\u0646\u0627\u0645 \u067e\u0631\u0648\u0641\u0627\u06cc\u0644: &#8220;\u067e\u0647\u0646\u0627\u06cc \u0628\u0627\u0646\u062f \u0645\u062a\u0648\u0633\u0637 \u200b\u200b\u0627\u06cc\u0646\u062a\u0631\u0646\u062a&#8221;<\/li>\n<li>\u0628\u0627\u0631\u06af\u06cc\u0631\u06cc: 50000 (50 \u0645\u06af\u0627\u0628\u06cc\u062a \u062f\u0631 \u062b\u0627\u0646\u06cc\u0647)<\/li>\n<li>\u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc: 15000 (15 \u0645\u06af\u0627\u0628\u06cc\u062a \u062f\u0631 \u062b\u0627\u0646\u06cc\u0647)<\/li>\n<li>\u062a\u0623\u062e\u06cc\u0631: 40 (\u062a\u0642\u0631\u06cc\u0628\u0627\u064b \u0645\u062a\u0648\u0633\u0637 \u200b\u200b\u0628\u0631\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u0639\u0645\u0648\u0645\u06cc \u0627\u06cc\u0646\u062a\u0631\u0646\u062a)<\/li>\n<\/ul>\n<img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fvutwngmdeuxgte62y7ge.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"469\"\/>\n\u0627\u06a9\u0646\u0648\u0646 \u0622\u0646 \u0646\u0645\u0627\u06cc\u0647 \u0631\u0627 \u062f\u0631 \u06a9\u0634\u0648\u06cc\u06cc \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0631\u062f\u0647 \u0648 \u062f\u0648\u0628\u0627\u0631\u0647 \u0636\u0628\u0637 \u0639\u0645\u0644\u06a9\u0631\u062f \u0631\u0627 \u062f\u0648\u0628\u0627\u0631\u0647 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f.\n\u0686\u0647 \u0645\u06cc \u0628\u06cc\u0646\u06cc\u061f \u0628\u0631\u0627\u06cc \u0645\u0646 \u060c \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc \u0631\u0633\u062f \u0627\u06cc\u0646\u06af\u0648\u0646\u0647 \u0627\u0633\u062a.\n<strong>LCP<\/strong> \u0645\u0642\u062f\u0627\u0631 \u0628\u0647 \u0633\u062e\u062a\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u06a9\u0631\u062f\u0647 \u0627\u0633\u062a &#8211; \u0627\u0641\u0632\u0627\u06cc\u0634 \u062c\u0632\u0626\u06cc \u0627\u0632 640ms \u0628\u0647 700ms. \u0647\u06cc\u0686 \u0686\u06cc\u0632 \u062f\u0631 \u0642\u0633\u0645\u062a \u0627\u0648\u0644\u06cc\u0647 &#8220;\u0633\u0631\u0648\u0631&#8221; \u0622\u0628\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u0646\u06a9\u0631\u062f\u0647 \u0627\u0633\u062a \u060c \u06a9\u0647 \u0642\u0627\u0628\u0644 \u062a\u0648\u0636\u06cc\u062d \u0627\u0633\u062a: \u0627\u06cc\u0646 \u0641\u0642\u0637 \u062d\u062f\u0627\u0642\u0644 HTML \u0644\u062e\u062a \u0631\u0627 \u0627\u0631\u0633\u0627\u0644 \u0645\u06cc \u06a9\u0646\u062f \u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0628\u0631\u0627\u06cc \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0622\u0646 \u0637\u0648\u0644 \u0646\u0645\u06cc \u06a9\u0634\u062f.\n\u0627\u0645\u0627 \u0631\u0627\u0628\u0637\u0647 \u0628\u06cc\u0646 \u0645\u0646\u0627\u0628\u0639 \u0642\u0627\u0628\u0644 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0648 \u0645\u0648\u0636\u0648\u0639 \u0627\u0635\u0644\u06cc \u0628\u0647 \u0637\u0631\u0632 \u0686\u0634\u0645\u06af\u06cc\u0631\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u06a9\u0631\u062f.\n<img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fijgo67h7is02b96ui98b.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"470\"\/>\n\u0645\u0646 \u0628\u0647 \u0648\u0636\u0648\u062d \u0645\u06cc \u062a\u0648\u0627\u0646\u0645 \u062a\u0623\u062b\u06cc\u0631 \u0622\u0646 \u0631\u0627 \u0628\u0628\u06cc\u0646\u0645 <strong>CSS \u0645\u0633\u062f\u0648\u062f \u06a9\u0646\u0646\u062f\u0647<\/strong> \u0627\u06a9\u0646\u0648\u0646 \u067e\u0631\u0648\u0646\u062f\u0647 \u062f\u0631 <em>\u062a\u062c\u0632\u06cc\u0647 HTML<\/em> \u06a9\u0627\u0631 \u0627\u0632 \u0642\u0628\u0644 \u0628\u0647 \u067e\u0627\u06cc\u0627\u0646 \u0631\u0633\u06cc\u062f\u0647 \u0627\u0633\u062a \u060c \u0627\u0645\u0627 \u0645\u0631\u0648\u0631\u06af\u0631 \u062f\u0631 \u062d\u0627\u0644 \u0633\u0631\u062f \u0634\u062f\u0646 \u0627\u0633\u062a \u0648 \u0645\u0646\u062a\u0638\u0631 CSS \u0627\u0633\u062a &#8211; \u062a\u0627 \u0632\u0645\u0627\u0646 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u060c \u0647\u06cc\u0686 \u0686\u06cc\u0632 \u0642\u0627\u0628\u0644 \u0646\u0642\u0627\u0634\u06cc \u0646\u06cc\u0633\u062a. \u0622\u0646 \u0631\u0627 \u0628\u0627 \u062a\u0635\u0648\u06cc\u0631 \u0642\u0628\u0644\u06cc \u0645\u0642\u0627\u06cc\u0633\u0647 \u06a9\u0646\u06cc\u062f \u060c \u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u0646\u0627\u0628\u0639 \u062a\u0642\u0631\u06cc\u0628\u0627\u064b \u0641\u0648\u0631\u0627\u064b \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0645\u06cc \u0634\u0648\u0646\u062f \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0645\u0631\u0648\u0631\u06af\u0631 \u062f\u0631 \u062d\u0627\u0644 \u062a\u062c\u0632\u06cc\u0647 HTML \u0628\u0648\u062f.\n\u067e\u0633 \u0627\u0632 \u0622\u0646 \u060c \u0627\u0632 \u0646\u0638\u0631 \u0641\u0646\u06cc \u060c \u0645\u0631\u0648\u0631\u06af\u0631 \u0645\u06cc \u062a\u0648\u0627\u0646\u0633\u062a \u0686\u06cc\u0632\u06cc \u0631\u0627 \u0646\u0642\u0627\u0634\u06cc \u06a9\u0646\u062f &#8211; \u0627\u0645\u0627 \u0686\u06cc\u0632\u06cc \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f \u060c \u0645\u0627 \u0641\u0642\u0637 \u06cc\u06a9 \u0628\u062e\u0634 \u062e\u0627\u0644\u06cc \u0631\u0627 \u062f\u0631 \u067e\u0631\u0648\u0646\u062f\u0647 HTML \u0645\u06cc \u0641\u0631\u0633\u062a\u06cc\u0645. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0645\u0631\u0648\u0631\u06af\u0631 \u0628\u0627 \u0627\u0646\u062a\u0638\u0627\u0631 \u0627\u062f\u0627\u0645\u0647 \u0645\u06cc \u06cc\u0627\u0628\u062f \u062a\u0627 \u067e\u0631\u0648\u0646\u062f\u0647 JavaScript \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0634\u0648\u062f \u0648 \u0642\u0627\u0628\u0644 \u0627\u062c\u0631\u0627 \u0628\u0627\u0634\u062f.\n\u0627\u06cc\u0646 \u0641\u0627\u0635\u0644\u0647 \u062a\u0642\u0631\u06cc\u0628\u0627\u064b 60ms \u0627\u0646\u062a\u0638\u0627\u0631 \u062f\u0642\u06cc\u0642\u0627\u064b \u0627\u0641\u0632\u0627\u06cc\u0634 \u062f\u0631 <strong>LCP<\/strong> \u06a9\u0647 \u0645\u0646 \u0645\u06cc \u0628\u06cc\u0646\u0645\n\u0633\u0631\u0639\u062a \u0631\u0627 \u062d\u062a\u06cc \u0628\u06cc\u0634\u062a\u0631 \u06a9\u0627\u0647\u0634 \u062f\u0647\u06cc\u062f \u062a\u0627 \u0628\u0628\u06cc\u0646\u06cc\u062f \u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u067e\u06cc\u0634\u0631\u0641\u062a \u0645\u06cc \u06a9\u0646\u062f. \u0628\u0631\u0627\u06cc \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0648 \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u060c \u06cc\u06a9 \u067e\u0631\u0648\u0641\u0627\u06cc\u0644 \u0634\u0628\u06a9\u0647 \u062c\u062f\u06cc\u062f \u0628\u0627 10Mbps\/1Mbps \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f \u060c 40 \u062a\u0627\u062e\u06cc\u0631 \u0631\u0627 \u0646\u06af\u0647 \u062f\u0627\u0631\u06cc\u062f \u0648 \u0622\u0646 \u0631\u0627 &#8220;\u067e\u0647\u0646\u0627\u06cc \u0628\u0627\u0646\u062f \u0627\u06cc\u0646\u062a\u0631\u0646\u062a \u067e\u0627\u06cc\u06cc\u0646&#8221; \u0646\u0627\u0645\u06af\u0630\u0627\u0631\u06cc \u06a9\u0646\u06cc\u062f.\n<img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F8tzexeg7zui6r50szc6i.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"784\" height=\"270\"\/>\n\u0648 \u062f\u0648\u0628\u0627\u0631\u0647 \u0622\u0632\u0645\u0648\u0646 \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f.\n\u0627\u06a9\u0646\u0648\u0646 \u0645\u0642\u062f\u0627\u0631 LCP \u0628\u0647 \u062a\u0642\u0631\u06cc\u0628\u0627\u064b 500 \u0645\u06cc\u0644\u06cc \u062b\u0627\u0646\u06cc\u0647 \u0627\u0641\u0632\u0627\u06cc\u0634 \u06cc\u0627\u0641\u062a\u0647 \u0627\u0633\u062a. \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc JavaScript \u062a\u0642\u0631\u06cc\u0628\u0627\u064b 300 \u0645\u06cc\u0644\u06cc \u062b\u0627\u0646\u06cc\u0647 \u0637\u0648\u0644 \u0645\u06cc \u06a9\u0634\u062f. \u0648 \u0648\u0638\u0627\u06cc\u0641 \u0627\u062c\u0631\u0627\u06cc JavaScript \u0648 \u06a9\u0627\u0631\u0647\u0627\u06cc JavaScript \u062f\u0631 \u0627\u0647\u0645\u06cc\u062a \u0646\u0633\u0628\u062a\u0627\u064b \u0635\u062d\u0628\u062a \u0645\u06cc \u06a9\u0646\u0646\u062f.\n<img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fuzainfjwt2pzn3eqw5q2.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"374\"\/>\n<h4><span class=\"ez-toc-section\" id=\"%D9%88%D8%B1%D8%B2%D8%B4_%D8%A7%D8%B6%D8%A7%D9%81%DB%8C\"><\/span>\n  \u0648\u0631\u0632\u0634 \u0627\u0636\u0627\u0641\u06cc\n<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\u0627\u06af\u0631 \u067e\u0631\u0648\u0698\u0647 \u062e\u0648\u062f \u0631\u0627 \u062f\u0627\u0631\u06cc\u062f \u060c \u0633\u0639\u06cc \u06a9\u0646\u06cc\u062f \u0627\u06cc\u0646 \u062a\u0633\u062a \u0631\u0627 \u0631\u0648\u06cc \u0622\u0646 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f.\n<ul>\n<li>\u0686\u0647 \u0645\u062f\u062a \u0637\u0648\u0644 \u0645\u06cc \u06a9\u0634\u062f \u062a\u0627 \u062a\u0645\u0627\u0645 \u0645\u0646\u0627\u0628\u0639 \u0645\u0647\u0645 \u0645\u0633\u06cc\u0631 \u0631\u0627 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u06a9\u0646\u06cc\u062f\u061f<\/li>\n<li>\u0686\u0647 \u0645\u062f\u062a \u0637\u0648\u0644 \u0645\u06cc \u06a9\u0634\u062f \u062a\u0627 \u062a\u0645\u0627\u0645 \u067e\u0631\u0648\u0646\u062f\u0647 \u0647\u0627\u06cc JavaScript \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0634\u0648\u062f\u061f<\/li>\n<li>\u0627\u06cc\u0646 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u067e\u0633 \u0627\u0632 \u06a9\u0627\u0631 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 HTML \u0686\u0647 \u0645\u0642\u062f\u0627\u0631 \u0627\u0632 \u0634\u06a9\u0627\u0641 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f\u061f<\/li>\n<li>\u0648\u0638\u0627\u06cc\u0641 \u0627\u062c\u0631\u0627\u06cc Parse HTML \u0648 JavaScript \u062f\u0631 \u0645\u0648\u0636\u0648\u0639 \u0627\u0635\u0644\u06cc \u0646\u0633\u0628\u062a \u0628\u0647 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0645\u0646\u0627\u0628\u0639 \u0686\u0642\u062f\u0631 \u0628\u0632\u0631\u06af \u0627\u0633\u062a\u061f<\/li>\n<li>\u0686\u06af\u0648\u0646\u0647 \u0628\u0631 \u0645\u062a\u0631\u06cc\u06a9 LCP \u062a\u0623\u062b\u06cc\u0631 \u0645\u06cc \u06af\u0630\u0627\u0631\u062f\u061f<\/li>\n<\/ul>\n\u0622\u0646\u0686\u0647 \u062f\u0631 \u062f\u0627\u062e\u0644 \u0646\u0648\u0627\u0631 \u0645\u0646\u0627\u0628\u0639 \u0627\u062a\u0641\u0627\u0642 \u0645\u06cc \u0627\u0641\u062a\u062f \u0646\u06cc\u0632 \u0628\u0633\u06cc\u0627\u0631 \u062c\u0627\u0644\u0628 \u0627\u0633\u062a. \u0631\u0648\u06cc \u0646\u0648\u0627\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0632\u0631\u062f \u0634\u0646\u0627\u0648\u0631 \u0634\u0648\u06cc\u062f. \u0634\u0645\u0627 \u0628\u0627\u06cc\u062f \u0686\u06cc\u0632\u06cc \u0634\u0628\u06cc\u0647 \u0628\u0647 \u0627\u06cc\u0646 \u0631\u0627 \u062f\u0631 \u0622\u0646\u062c\u0627 \u0628\u0628\u06cc\u0646\u06cc\u062f:\n<img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fyxsna44l9xxdnz5xrgyp.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"679\" height=\"323\"\/>\n\u062c\u0627\u0644\u0628 \u062a\u0631\u06cc\u0646 \u0642\u0633\u0645\u062a \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 &#8220;\u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0627\u0631\u0633\u0627\u0644 \u0648 \u0627\u0646\u062a\u0638\u0627\u0631&#8221; \u0627\u0633\u062a \u06a9\u0647 \u062a\u0642\u0631\u06cc\u0628\u0627\u064b 40 \u0645\u06cc\u0644\u06cc \u062b\u0627\u0646\u06cc\u0647 \u0637\u0648\u0644 \u0645\u06cc \u06a9\u0634\u062f. \u0631\u0648\u06cc \u0628\u0642\u06cc\u0647 \u0645\u0646\u0627\u0628\u0639 \u0634\u0628\u06a9\u0647 \u0634\u0646\u0627\u0648\u0631 &#8211; \u0647\u0645\u0647 \u0622\u0646\u0647\u0627 \u0622\u0646 \u0631\u0627 \u062e\u0648\u0627\u0647\u0646\u062f \u062f\u0627\u0634\u062a. \u0627\u06cc\u0646 \u062a\u0623\u062e\u06cc\u0631 \u0645\u0627 \u060c \u062a\u0623\u062e\u06cc\u0631 \u062f\u0631 \u0634\u0628\u06a9\u0647 \u0627\u0633\u062a \u06a9\u0647 \u0645\u0627 40 \u0631\u0627 \u062a\u0646\u0638\u06cc\u0645 \u06a9\u0631\u062f\u06cc\u0645. \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0686\u06cc\u0632\u0647\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0628\u0631 \u062a\u0639\u062f\u0627\u062f \u062a\u0623\u062e\u06cc\u0631 \u062a\u0623\u062b\u06cc\u0631 \u0628\u06af\u0630\u0627\u0631\u0646\u062f. \u0646\u0648\u0639 \u0627\u062a\u0635\u0627\u0644 \u0634\u0628\u06a9\u0647 \u06cc\u06a9\u06cc \u0627\u0632 \u0622\u0646\u0647\u0627\u0633\u062a. \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u060c \u06cc\u06a9 \u0627\u062a\u0635\u0627\u0644 3G \u0628\u0647 \u0637\u0648\u0631 \u0645\u062a\u0648\u0633\u0637 \u200b\u200b\u067e\u0647\u0646\u0627\u06cc \u0628\u0627\u0646\u062f 10\/1 \u0645\u06af\u0627\u0628\u06cc\u062a \u0628\u0631 \u062b\u0627\u0646\u06cc\u0647 \u0648 \u062a\u0623\u062e\u06cc\u0631 \u0628\u06cc\u0646 100 \u062a\u0627 300 \u0645\u06cc\u0644\u06cc \u062b\u0627\u0646\u06cc\u0647 \u062e\u0648\u0627\u0647\u062f \u062f\u0627\u0634\u062a.\n\u0628\u0631\u0627\u06cc \u062a\u0642\u0644\u06cc\u062f \u0627\u0632 \u0622\u0646 \u060c \u06cc\u06a9 \u067e\u0631\u0648\u0641\u0627\u06cc\u0644 \u0634\u0628\u06a9\u0647 \u062c\u062f\u06cc\u062f \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f \u060c \u0622\u0646 \u0631\u0627 &#8220;\u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 3G&#8221; \u0628\u0646\u0627\u0645\u06cc\u062f \u060c \u0634\u0645\u0627\u0631\u0647 \u0647\u0627\u06cc \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc\/\u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0631\u0627 \u0627\u0632 \u067e\u0631\u0648\u0641\u0627\u06cc\u0644 &#8220;\u067e\u0647\u0646\u0627\u06cc \u0628\u0627\u0646\u062f \u0627\u06cc\u0646\u062a\u0631\u0646\u062a \u067e\u0627\u06cc\u06cc\u0646&#8221; \u06a9\u067e\u06cc \u06a9\u0631\u062f\u0647 \u0648 \u062a\u0623\u062e\u06cc\u0631 \u0631\u0627 \u0631\u0648\u06cc 300 \u0645\u06cc\u0644\u06cc \u062b\u0627\u0646\u06cc\u0647 \u062a\u0646\u0638\u06cc\u0645 \u06a9\u0646\u06cc\u062f.\n\u062f\u0648\u0628\u0627\u0631\u0647 \u067e\u0631\u0648\u0641\u0627\u06cc\u0644 \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f. \u062a\u0645\u0627\u0645 \u0645\u0646\u0627\u0628\u0639 \u0634\u0628\u06a9\u0647 \u0628\u0627\u06cc\u062f &#8220;\u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0627\u0631\u0633\u0627\u0644 \u0634\u062f\u0647 \u0648 \u0627\u0646\u062a\u0638\u0627\u0631&#8221; \u0628\u0647 \u062d\u062f\u0648\u062f 300 \u0645\u06cc\u0644\u06cc \u062b\u0627\u0646\u06cc\u0647 \u0627\u0641\u0632\u0627\u06cc\u0634 \u06cc\u0627\u0628\u062f. \u0627\u06cc\u0646 \u0641\u0634\u0627\u0631 \u0631\u0627 \u062a\u062d\u062a \u0641\u0634\u0627\u0631 \u0642\u0631\u0627\u0631 \u0645\u06cc \u062f\u0647\u062f <strong>LCP<\/strong> \u0634\u0645\u0627\u0631\u0647 \u062d\u062a\u06cc \u0628\u06cc\u0634\u062a\u0631: <strong>1.2 \u062b\u0627\u0646\u06cc\u0647<\/strong> \u0628\u0631\u0627\u06cc \u0645\u0646\n\u0648 \u0627\u06a9\u0646\u0648\u0646 \u0628\u062e\u0634 \u0633\u0631\u06af\u0631\u0645 \u06a9\u0646\u0646\u062f\u0647: \u0627\u06af\u0631 \u067e\u0647\u0646\u0627\u06cc \u0628\u0627\u0646\u062f \u0631\u0627 \u0628\u0647 \u0633\u0631\u0639\u062a \u0647\u0627\u06cc \u0641\u0648\u0642 \u0627\u0644\u0639\u0627\u062f\u0647 \u0628\u0627\u0644\u0627 \u0628\u0631\u06af\u0631\u062f\u0627\u0646\u0645 \u0627\u0645\u0627 \u062a\u0623\u062e\u06cc\u0631 \u06a9\u0645 \u0631\u0627 \u062d\u0641\u0638 \u06a9\u0646\u0645 \u060c \u0686\u0647 \u0627\u062a\u0641\u0627\u0642\u06cc \u062e\u0648\u0627\u0647\u062f \u0627\u0641\u062a\u0627\u062f\u061f \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0627\u06cc\u0646 \u062a\u0646\u0638\u06cc\u0645 \u0631\u0627 \u0627\u0645\u062a\u062d\u0627\u0646 \u06a9\u0646\u06cc\u0645:\n<ul>\n<li>\n<strong>\u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u06a9\u0631\u062f\u0646<\/strong>: 1000 \u0645\u06af\u0627\u0628\u06cc\u062a \u062f\u0631 \u062b\u0627\u0646\u06cc\u0647<\/li>\n<li>\n<strong>\u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u06a9\u0631\u062f\u0646<\/strong>: 100 \u0645\u06af\u0627\u0628\u06cc\u062a \u062f\u0631 \u062b\u0627\u0646\u06cc\u0647<\/li>\n<li>\n<strong>\u0639\u0648\u0627\u0631\u0636<\/strong>: 300 ms<\/li>\n<\/ul>\n\u0627\u06af\u0631 \u0633\u0631\u0648\u0631\u0647\u0627\u06cc \u0634\u0645\u0627 \u062f\u0631 \u062c\u0627\u06cc\u06cc \u062f\u0631 \u0646\u0631\u0648\u0698 \u0628\u0627\u0634\u0646\u062f \u060c \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0627\u062a\u0641\u0627\u0642 \u0628\u06cc\u0641\u062a\u062f \u060c \u0627\u0645\u0627 \u0645\u0634\u062a\u0631\u06cc \u0647\u0627 \u0627\u0633\u062a\u0631\u0627\u0644\u06cc\u0627\u06cc\u06cc \u062b\u0631\u0648\u062a\u0645\u0646\u062f \u0647\u0633\u062a\u0646\u062f.\n\u0627\u06cc\u0646 \u0646\u062a\u06cc\u062c\u0647 \u0627\u0633\u062a:\n<img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Flt1nsu5d2im2fo3wnkxz.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"324\"\/>\n\u062f\u0631 <strong>LCP<\/strong> \u062a\u0639\u062f\u0627\u062f \u0627\u0637\u0631\u0627\u0641 \u0627\u0633\u062a <strong>960ms<\/strong>\u0628\u0634\u0631 \u0627\u06cc\u0646 \u0628\u062f\u062a\u0631 \u0627\u0632 \u06a9\u0645\u062a\u0631\u06cc\u0646 \u0633\u0631\u0639\u062a \u0627\u06cc\u0646\u062a\u0631\u0646\u062a \u0627\u0633\u062a \u06a9\u0647 \u0642\u0628\u0644\u0627\u064b \u0627\u0645\u062a\u062d\u0627\u0646 \u06a9\u0631\u062f\u06cc\u0645! \u062f\u0631 \u0627\u06cc\u0646 \u0633\u0646\u0627\u0631\u06cc\u0648 \u060c \u0627\u0646\u062f\u0627\u0632\u0647 \u0628\u0633\u062a\u0647 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631\u06cc \u0627\u0647\u0645\u06cc\u062a\u06cc \u0646\u062f\u0627\u0631\u062f \u0648 \u0627\u0646\u062f\u0627\u0632\u0647 CSS \u0628\u0647 \u0647\u06cc\u0686 \u0648\u062c\u0647 \u0627\u0647\u0645\u06cc\u062a\u06cc \u0646\u062f\u0627\u0631\u062f. \u062d\u062a\u06cc \u0627\u06af\u0631 \u0647\u0631 \u062f\u0648 \u0631\u0627 \u0646\u0635\u0641 \u06a9\u0646\u06cc\u062f \u060c \u0645\u062a\u0631\u06cc\u06a9 LCP \u0628\u0647 \u0633\u062e\u062a\u06cc \u062d\u0631\u06a9\u062a \u062e\u0648\u0627\u0647\u062f \u06a9\u0631\u062f. \u062a\u0623\u062e\u06cc\u0631 \u0628\u0627\u0644\u0627 \u0647\u0645\u0647 \u0686\u06cc\u0632 \u0631\u0627 \u0628\u0631\u0637\u0631\u0641 \u0645\u06cc \u06a9\u0646\u062f.\n\u0627\u06cc\u0646 \u0627\u0645\u0631 \u0645\u0646 \u0631\u0627 \u0628\u0647 \u0627\u0648\u0644\u06cc\u0646 \u0628\u0647\u0628\u0648\u062f \u0639\u0645\u0644\u06a9\u0631\u062f\u06cc \u06a9\u0647 \u0647\u0645\u0647 \u0628\u0627\u06cc\u062f \u062f\u0631 \u0635\u0648\u0631\u062a\u06cc \u06a9\u0647 \u0647\u0646\u0648\u0632 \u0627\u062c\u0631\u0627 \u0646\u06a9\u0631\u062f\u0647 \u0627\u0646\u062f \u060c \u0628\u0647 \u0648\u062c\u0648\u062f \u0645\u06cc \u0622\u0648\u0631\u062f. \u0628\u0647 \u0622\u0646 \u06af\u0641\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f 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height=\"249\"\/>\n\u0648 \u0645\u0642\u062f\u0627\u0631 LCP \u062f\u0631 \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0645\u0627 \u062f\u0631 \u0628\u0627\u0644\u0627 \u0627\u0641\u062a \u0645\u06cc \u06a9\u0646\u062f <strong>\u0627\u0632 960ms \u0628\u0647 640ms<\/strong>\u0628\u0634\u0631\n\u062a\u0627\u06a9\u0646\u0648\u0646 \u060c \u0645\u0627 \u0641\u0642\u0637 \u062f\u0631 \u0645\u0648\u0631\u062f \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0627\u0632\u062f\u06cc\u062f \u0628\u0631\u0627\u06cc \u0627\u0648\u0644\u06cc\u0646 \u0628\u0627\u0631 \u0635\u062d\u0628\u062a \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645 &#8211; \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0631\u0627\u06cc \u0627\u0641\u0631\u0627\u062f\u06cc \u06a9\u0647 \u0647\u0631\u06af\u0632 \u062f\u0631 \u0648\u0628 \u0633\u0627\u06cc\u062a \u0634\u0645\u0627 \u0646\u0628\u0648\u062f\u0647 \u0627\u0646\u062f. \u0627\u0645\u0627 \u0627\u0645\u06cc\u062f\u0648\u0627\u0631\u0645 \u06a9\u0647 \u0627\u06cc\u0646 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\u0627\u0646\u062a\u0638\u0627\u0631 \u062f\u0627\u0631\u06cc\u0645 \u06a9\u0647 \u0645\u0631\u0648\u0631\u06af\u0631\u0647\u0627 \u0645\u0646\u0627\u0628\u0639 \u0627\u0633\u062a\u0627\u062a\u06cc\u06a9 \u0645\u0627\u0646\u0646\u062f CSS \u0648 JS \u0631\u0627 \u0630\u062e\u06cc\u0631\u0647 \u06a9\u0646\u0646\u062f &#8211; \u06cc\u0639\u0646\u06cc \u06cc\u06a9 \u0646\u0633\u062e\u0647 \u0627\u0632 \u0622\u0646\u0647\u0627 \u0631\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a \u0645\u062d\u0644\u06cc \u0630\u062e\u06cc\u0631\u0647 \u06a9\u0646\u06cc\u062f \u0646\u0647 \u0627\u06cc\u0646\u06a9\u0647 \u0647\u0645\u06cc\u0634\u0647 \u0622\u0646\u0647\u0627 \u0631\u0627 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u06a9\u0646\u06cc\u062f.\n\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0646\u06af\u0627\u0647\u06cc \u0628\u06cc\u0646\u062f\u0627\u0632\u06cc\u0645 \u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u0646\u0645\u0648\u062f\u0627\u0631\u0647\u0627 \u0648 \u0634\u0645\u0627\u0631\u0647 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src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fio9uikewtm2v9ednf5tb.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"516\"\/>\n\u067e\u0631\u0648\u0646\u062f\u0647 \u0647\u0627\u06cc CSS \u0648 JavaScript \u0647\u0646\u0648\u0632 \u0647\u0645 \u062f\u0631 \u0628\u0631\u06af\u0647 \u0634\u0628\u06a9\u0647 \u0628\u0633\u06cc\u0627\u0631 \u0628\u0631\u062c\u0633\u062a\u0647 \u0647\u0633\u062a\u0646\u062f \u060c \u0648 \u0645\u0646 300 \u0645\u06cc\u0644\u06cc\u0648\u0646 \u067e\u0648\u0646\u062f \u0631\u0627 \u0628\u0631\u0627\u06cc \u0647\u0631 \u062f\u0648\u06cc \u0622\u0646\u0647\u0627 \u062f\u0631 &#8220;\u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0627\u0631\u0633\u0627\u0644 \u0634\u062f\u0647 \u0648 \u0627\u0646\u062a\u0638\u0627\u0631&#8221; \u0645\u06cc \u0628\u06cc\u0646\u0645 &#8211; 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id=\"part4.1\"><span class=\"ez-toc-section\" id=\"%DA%A9%D9%86%D8%AA%D8%B1%D9%84_%D8%AD%D8%A7%D9%81%D8%B8%D9%87_%D9%86%D9%87%D8%A7%D9%86_%D9%85%D8%B1%D9%88%D8%B1%DA%AF%D8%B1_%D8%A8%D8%A7_%D9%87%D8%AF%D8%B1%D9%87%D8%A7%DB%8C_%DA%A9%D9%86%D8%AA%D8%B1%D9%84_%D8%AD%D8%A7%D9%81%D8%B8%D9%87_%D9%86%D9%87%D8%A7%D9%86\"><\/span>\n    \u06a9\u0646\u062a\u0631\u0644 \u062d\u0627\u0641\u0638\u0647 \u0646\u0647\u0627\u0646 \u0645\u0631\u0648\u0631\u06af\u0631 \u0628\u0627 \u0647\u062f\u0631\u0647\u0627\u06cc \u06a9\u0646\u062a\u0631\u0644 \u062d\u0627\u0641\u0638\u0647 \u0646\u0647\u0627\u0646\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\u0627\u06a9\u0646\u0648\u0646 \u0628\u0627\u06cc\u062f \u0627\u0632 \u067e\u0646\u0644 \u0634\u0628\u06a9\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645 \u062a\u0627 \u0628\u0641\u0647\u0645\u06cc\u0645 \u0686\u0647 \u062e\u0628\u0631 \u0627\u0633\u062a. \u0622\u0646 \u0631\u0627 \u0628\u0627\u0632 \u06a9\u0646\u06cc\u062f \u0648 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\u0634\u062f.<\/li>\n<\/ul>\n\u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0627\u0633\u0627\u0633\u0627\u064b \u060c \u0622\u0646\u0686\u0647 \u0627\u06cc\u0646 \u0647\u062f\u0631 \u0628\u0647 \u0645\u0631\u0648\u0631\u06af\u0631 \u0645\u06cc \u06af\u0648\u06cc\u062f \u0627\u06cc\u0646 \u0627\u0633\u062a:\n<ul>\n<li>\u0627\u0634\u06a9\u0627\u0644\u06cc \u0646\u062f\u0627\u0631\u062f \u06a9\u0647 \u0627\u06cc\u0646 \u067e\u0627\u0633\u062e \u0631\u0627 \u062f\u0631 \u062d\u0627\u0641\u0638\u0647 \u0646\u0647\u0627\u0646 \u062e\u0648\u062f \u0630\u062e\u06cc\u0631\u0647 \u06a9\u0646\u06cc\u062f \u060c \u0627\u0645\u0627 \u0628\u0639\u062f \u0627\u0632 \u0645\u062f\u062a\u06cc \u0628\u0627 \u0645\u0646 \u062f\u0648\u0628\u0627\u0631 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f \u062a\u0627 \u0645\u0637\u0645\u0626\u0646 \u0634\u0648\u06cc\u062f.<\/li>\n<li>\u0628\u0647 \u0647\u0631 \u062d\u0627\u0644 \u060c \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0622\u0646 \u062d\u0627\u0641\u0638\u0647 \u067e\u0646\u0647\u0627\u0646 \u0631\u0627 \u062d\u0641\u0638 \u06a9\u0646\u06cc\u062f \u062f\u0642\u06cc\u0642\u0627\u064b \u0627\u0633\u062a <strong>\u0635\u0641\u0631<\/strong> \u062b\u0627\u0646\u06cc\u0647 \u0645\u0648\u0641\u0642 \u0628\u0627\u0634\u06cc\u062f<\/li>\n<\/ul>\n\u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u060c \u0645\u0631\u0648\u0631\u06af\u0631 <em>\u0647\u0645\u06cc\u0634\u0647<\/em> \u0628\u0627 \u0633\u0631\u0648\u0631 \u0686\u06a9 \u06a9\u0646\u06cc\u062f \u0648 \u0647\u0631\u06af\u0632 \u0627\u0632 \u062d\u0627\u0641\u0638\u0647 \u0646\u0647\u0627\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0646\u06a9\u0646\u06cc\u062f.\n\u0645\u0627 \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0622\u0646 \u0631\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0647\u06cc\u0645 \u060c \u0647\u0631\u0686\u0646\u062f &#8211; \u062a\u0646\u0647\u0627 \u0686\u06cc\u0632\u06cc \u06a9\u0647 \u0645\u0627 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u06cc\u0645 \u062a\u063a\u06cc\u06cc\u0631 \u0622\u0646 \u0627\u0633\u062a <code>max-age<\/code> \u0634\u0645\u0627\u0631\u0647 \u0628\u0647 \u0686\u06cc\u0632\u06cc \u0628\u06cc\u0646 0 \u062a\u0627 31536000 (\u06cc\u06a9 \u0633\u0627\u0644 \u060c \u062d\u062f\u0627\u06a9\u062b\u0631 \u062b\u0627\u0646\u06cc\u0647 \u0645\u062c\u0627\u0632). \u0628\u0631\u0627\u06cc \u0627\u0646\u062c\u0627\u0645 \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u060c \u062f\u0631 \u067e\u0631\u0648\u0698\u0647 \u0645\u0637\u0627\u0644\u0639\u0647 \u062e\u0648\u062f \u060c \u0628\u0647 <code>backend\/index.ts<\/code> \u067e\u0631\u0648\u0646\u062f\u0647 \u060c \u06a9\u062c\u0627 \u067e\u06cc\u062f\u0627 \u06a9\u0646\u06cc\u062f <code>max-age=0<\/code> \u062a\u0646\u0638\u06cc\u0645 \u0634\u062f\u0647 \u0648 \u0622\u0646 \u0631\u0627 \u0628\u0647 31536000 (\u06cc\u06a9 \u0633\u0627\u0644) \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0647\u06cc\u062f. \u0686\u0646\u062f \u0628\u0627\u0631 \u0635\u0641\u062d\u0647 \u0631\u0627 \u062a\u0627\u0632\u0647 \u06a9\u0646\u06cc\u062f \u0648 \u0628\u0627\u06cc\u062f \u0627\u06cc\u0646 \u067e\u0631\u0648\u0646\u062f\u0647 \u0631\u0627 \u0628\u0631\u0627\u06cc \u067e\u0631\u0648\u0646\u062f\u0647 CSS \u062f\u0631 \u0628\u0631\u06af\u0647 \u0634\u0628\u06a9\u0647 \u0645\u0634\u0627\u0647\u062f\u0647 \u06a9\u0646\u06cc\u062f:\n<img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fra3vfujmlql4a2gteyh9.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"65\"\/>\n\u062a\u0648\u062c\u0647 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 <code>Status<\/code> \u0633\u062a\u0648\u0646 \u0627\u06a9\u0646\u0648\u0646 \u062e\u0627\u06a9\u0633\u062a\u0631\u06cc \u0634\u062f\u0647 \u0627\u0633\u062a \u060c \u0648 \u0628\u0631\u0627\u06cc <code>Size,<\/code> \u0645\u0627 \u0645\u06cc \u0628\u06cc\u0646\u06cc\u0645 &#8220;(\u062d\u0627\u0641\u0638\u0647 \u0646\u0647\u0627\u0646)&#8221;. \u067e\u0631\u0648\u0646\u062f\u0647 CSS \u0627\u06a9\u0646\u0648\u0646 \u0627\u0632 \u062d\u0627\u0641\u0638\u0647 \u0646\u0647\u0627\u0646 \u0645\u0631\u0648\u0631\u06af\u0631 \u0633\u0631\u0648 \u0645\u06cc \u0634\u0648\u062f \u0648 \u0628\u0631\u0627\u06cc \u0628\u0642\u06cc\u0647 \u0633\u0627\u0644 \u0686\u0646\u06cc\u0646 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f. \u0686\u0646\u062f \u0628\u0627\u0631 \u0635\u0641\u062d\u0647 \u0631\u0627 \u062a\u0627\u0632\u0647 \u06a9\u0646\u06cc\u062f \u062a\u0627 \u0628\u0628\u06cc\u0646\u06cc\u062f \u06a9\u0647 \u062a\u063a\u06cc\u06cc\u0631 \u0646\u0645\u06cc \u06a9\u0646\u062f.\n\u0627\u06a9\u0646\u0648\u0646 \u060c \u062a\u0627 \u06a9\u0644 \u0646\u0642\u0637\u0647 \u0622\u0634\u0641\u062a\u06af\u06cc \u0628\u0627 \u0639\u0646\u0648\u0627\u0646 \u0647\u0627\u06cc \u062d\u0627\u0641\u0638\u0647 \u067e\u0646\u0647\u0627\u0646: \u0628\u06cc\u0627\u06cc\u06cc\u062f \u062f\u0648\u0628\u0627\u0631\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0635\u0641\u062d\u0647 \u0631\u0627 \u0627\u0646\u062f\u0627\u0632\u0647 \u06af\u06cc\u0631\u06cc \u06a9\u0646\u06cc\u0645. \u0641\u0631\u0627\u0645\u0648\u0634 \u0646\u06a9\u0646\u06cc\u062f \u06a9\u0647 \u062a\u0646\u0638\u06cc\u0645\u0627\u062a \u067e\u0631\u0648\u0641\u0627\u06cc\u0644 &#8220;\u0645\u062a\u0648\u0633\u0637 \u200b\u200b3G&#8221; \u0631\u0627 \u062a\u0646\u0638\u06cc\u0645 \u06a9\u0631\u062f\u0647 \u0648 \u062a\u0646\u0638\u06cc\u0645 &#8220;\u063a\u06cc\u0631\u0641\u0639\u0627\u0644&#8221; \u0631\u0627 \u0628\u062f\u0648\u0646 \u0628\u0631\u0631\u0633\u06cc \u0646\u06af\u0647 \u062f\u0627\u0631\u06cc\u062f.\n\u0646\u062a\u06cc\u062c\u0647 \u0628\u0627\u06cc\u062f \u0686\u06cc\u0632\u06cc \u0634\u0628\u06cc\u0647 \u0628\u0647 \u0627\u06cc\u0646 \u0628\u0627\u0634\u062f:\n<img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fcoaq99epgkbnbm5nnw0r.png\" alt=\"\u0634\u0631\u062d \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"330\"\/>\n\u0642\u0633\u0645\u062a &#8220;\u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0627\u0631\u0633\u0627\u0644 \u0634\u062f\u0647 \u0648 \u0627\u0646\u062a\u0638\u0627\u0631&#8221; \u0628\u0627 \u0648\u062c\u0648\u062f \u062a\u0623\u062e\u06cc\u0631 \u0632\u06cc\u0627\u062f \u062a\u0642\u0631\u06cc\u0628\u0627\u064b \u0635\u0641\u0631 \u0641\u0631\u0648 \u0631\u06cc\u062e\u062a \u060c \u0634\u06a9\u0627\u0641 \u0628\u06cc\u0646 &#8220;\u067e\u0627\u0631\u0633 HTML&#8221; \u0648 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc JavaScript \u062a\u0642\u0631\u06cc\u0628\u0627\u064b \u0646\u0627\u067e\u062f\u06cc\u062f \u0634\u062f \u0648 \u0645\u0627 \u0628\u0631\u0627\u06cc \u0645\u0642\u062f\u0627\u0631 LCP \u0628\u0647 650ms \u067e\u0648\u0646\u062f \u0628\u0627\u0632\u06af\u0634\u062a\u06cc\u0645.\n<h4><span class=\"ez-toc-section\" id=\"%D9%88%D8%B1%D8%B2%D8%B4_%D8%A7%D8%B6%D8%A7%D9%81%DB%8C-3\"><\/span>\n  \u0648\u0631\u0632\u0634 \u0627\u0636\u0627\u0641\u06cc\n<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ol>\n<li>\n          \u062a\u063a\u06cc\u06cc\u0631 <code>max-age<\/code> \u0645\u0642\u062f\u0627\u0631 \u062a\u0627 10 \u0627\u06a9\u0646\u0648\u0646 (10 \u062b\u0627\u0646\u06cc\u0647)\n        <\/li>\n<li>\u0635\u0641\u062d\u0647 \u0631\u0627 \u0628\u0627 \u06a9\u0627\u062f\u0631 \u0627\u0646\u062a\u062e\u0627\u0628 &#8220;Disable Cache&#8221; \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0631\u0647\u0627 \u06a9\u0631\u062f\u0646 \u062d\u0627\u0641\u0638\u0647 \u0646\u0647\u0627\u0646 \u0628\u0631\u0631\u0633\u06cc \u0634\u062f\u0647 \u0627\u0633\u062a \u060c \u062a\u0627\u0632\u0647 \u06a9\u0646\u06cc\u062f.<\/li>\n<li>\u06a9\u0627\u062f\u0631 \u0627\u0646\u062a\u062e\u0627\u0628 \u0631\u0627 \u0628\u0631\u062f\u0627\u0631\u06cc\u062f \u0648 \u062f\u0648\u0628\u0627\u0631\u0647 \u0635\u0641\u062d\u0647 \u0631\u0627 \u062a\u0627\u0632\u0647 \u06a9\u0646\u06cc\u062f &#8211; \u0627\u06cc\u0646 \u0628\u0627\u0631 \u0628\u0627\u06cc\u062f \u0627\u0632 \u062d\u0627\u0641\u0638\u0647 \u0646\u0647\u0627\u0646 \u062d\u0627\u0641\u0638\u0647 \u0633\u0631\u0648 \u0634\u0648\u062f.<\/li>\n<li>\n          10 \u062b\u0627\u0646\u06cc\u0647 \u0635\u0628\u0631 \u06a9\u0646\u06cc\u062f \u0648 \u062f\u0648\u0628\u0627\u0631\u0647 \u0635\u0641\u062d\u0647 \u0631\u0627 \u062a\u0627\u0632\u0647 \u06a9\u0646\u06cc\u062f. \u0686\u0648\u0646 <code>max-age<\/code> \u0641\u0642\u0637 10 \u062b\u0627\u0646\u06cc\u0647 \u0627\u0633\u062a \u060c \u0645\u0631\u0648\u0631\u06af\u0631 \u0627\u06cc\u0646 \u0645\u0646\u0628\u0639 \u0631\u0627 \u062f\u0648 \u0628\u0627\u0631 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc \u06a9\u0646\u062f \u0648 \u0633\u0631\u0648\u0631 \u062f\u0648\u0628\u0627\u0631\u0647 304 \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.\n        <\/li>\n<li>\u0635\u0641\u062d\u0647 \u0631\u0627 \u0628\u0644\u0627\u0641\u0627\u0635\u0644\u0647 \u062a\u0627\u0632\u0647 \u06a9\u0646\u06cc\u062f &#8211; \u0628\u0627\u06cc\u062f \u062f\u0648\u0628\u0627\u0631\u0647 \u0627\u0632 \u062d\u0627\u0641\u0638\u0647 \u0633\u0631\u0648 \u0634\u0648\u062f.<\/li>\n<\/ol>\n<h3 id=\"part4.2\"><span class=\"ez-toc-section\" id=\"Cache-Montrol_%D9%88_Bundlers_%D9%85%D8%AF%D8%B1%D9%86\"><\/span>\n  Cache-Montrol \u0648 Bundlers \u0645\u062f\u0631\u0646\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\u0622\u06cc\u0627 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0641\u0648\u0642 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0639\u0646\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062d\u0627\u0641\u0638\u0647 \u067e\u0646\u0647\u0627\u0646 \u06af\u0644\u0648\u0644\u0647 \u0646\u0642\u0631\u0647 \u0627\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u0645\u0627 \u0627\u0633\u062a \u0648 \u0645\u0627 \u0628\u0627\u06cc\u062f \u062a\u0627 \u062d\u062f \u0627\u0645\u06a9\u0627\u0646 \u0647\u0645\u0647 \u0686\u06cc\u0632 \u0631\u0627 \u0628\u0647 \u0637\u0631\u0632 \u062a\u0647\u0627\u062c\u0645\u06cc \u0630\u062e\u06cc\u0631\u0647 \u06a9\u0646\u06cc\u0645\u061f \u0645\u0637\u0644\u0642\u0627\u064b \u0646\u0647! \u06af\u0630\u0634\u062a\u0647 \u0627\u0632 \u0647\u0631 \u0686\u06cc\u0632 \u062f\u06cc\u06af\u0631\u06cc \u060c \u0641\u0631\u0635\u062a\u06cc \u0628\u0631\u0627\u06cc \u0627\u06cc\u062c\u0627\u062f \u062a\u0631\u06a9\u06cc\u0628\u06cc \u0627\u0632 &#8220;\u0645\u0634\u062a\u0631\u06cc\u0627\u0646 \u0646\u0647 \u0641\u0646 \u0622\u0648\u0631\u06cc&#8221; \u0648 &#8220;\u0646\u06cc\u0627\u0632 \u0628\u0647 \u062a\u0648\u0636\u06cc\u062d \u0627\u0632 \u0637\u0631\u06cc\u0642 \u062a\u0644\u0641\u0646 \u0628\u0631\u0627\u06cc \u067e\u0627\u06a9 \u06a9\u0631\u062f\u0646 \u062d\u0627\u0641\u0638\u0647 \u067e\u0646\u0647\u0627\u0646 \u0645\u0631\u0648\u0631\u06af\u0631&#8221; \u0628\u0627\u0639\u062b \u062d\u0645\u0644\u0627\u062a \u0648\u062d\u0634\u062a \u0628\u0631\u0627\u06cc \u0641\u0635\u0644\u06cc \u062a\u0631\u06cc\u0646 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u062e\u0648\u0627\u0647\u062f \u0634\u062f.\n\u06cc\u06a9 \u0645\u06cc\u0644\u06cc\u0648\u0646 \u0631\u0648\u0634 \u0628\u0631\u0627\u06cc \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u062d\u0627\u0641\u0638\u0647 \u0646\u0647\u0627\u0646 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u060c \u06cc\u06a9 \u0645\u06cc\u0644\u06cc\u0648\u0646 \u062a\u0631\u06a9\u06cc\u0628 \u0627\u0632 \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644 \u0647\u0627 \u062f\u0631 \u0639\u0646\u0648\u0627\u0646 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class=\"ez-toc-section-end\"><\/span><\/h3>\n\u062f\u0631 \u0627\u06cc\u0646 \u0632\u0645\u0627\u0646 \u060c \u0634\u0645\u0627 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0647 \u0686\u06cc\u0632\u06cc \u0645\u0627\u0646\u0646\u062f &#8220;\u0634\u0645\u0627 \u0645\u062c\u0646\u0648\u0646 \u0628\u0627\u0634\u06cc\u062f. \u0645\u0646 \u06cc\u06a9 \u0648\u0628 \u0633\u0627\u06cc\u062a \u0633\u0627\u062f\u0647 \u0631\u0627 \u062f\u0631 \u0622\u062e\u0631 \u0647\u0641\u062a\u0647 \u0628\u0627 Next.js \u0633\u0627\u062e\u062a\u0647 \u0627\u0645 \u0648 \u0622\u0646 \u0631\u0627 \u062f\u0631 2 \u062f\u0642\u06cc\u0642\u0647 \u0628\u0647 Vercel\/Netlify\/Hottestnewprovider \u0627\u0639\u0632\u0627\u0645 \u06a9\u0631\u062f\u0645. \u0645\u0637\u0645\u0626\u0646\u0627\u064b \u060c \u0622\u0646 \u0627\u0628\u0632\u0627\u0631\u0647\u0627\u06cc \u0645\u062f\u0631\u0646 \u0647\u0645\u0647 \u0631\u0627 \u06a9\u0646\u062a\u0631\u0644 \u0645\u06cc \u06a9\u0646\u0646\u062f \u0627\u06cc\u0646 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charset=\"utf-8\"><\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628 \u0645\u0639\u0631\u0641\u06cc \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u0627\u0648\u0644\u06cc\u0647 \u0628\u0627\u0631 \u0646\u0645\u0627\u06cc \u06a9\u0644\u06cc \u0627\u0632 Devtools Performance \u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u067e\u0631\u0648\u0698\u0647 \u06a9\u0627\u0648\u0634 \u062f\u0631 \u0645\u0648\u0631\u062f devtools \u0644\u0627\u0632\u0645 \u06a9\u0627\u0648\u0634 \u062f\u0631 \u0634\u0631\u0627\u06cc\u0637 \u0645\u062e\u062a\u0644\u0641 \u0634\u0628\u06a9\u0647 \u0633\u0631\u0648\u0631 \u0628\u0633\u06cc\u0627\u0631 \u06a9\u0646\u062f \u0627\u0632 \u067e\u0647\u0646\u0627\u06cc \u0628\u0627\u0646\u062f \u0648 \u062a\u0623\u062e\u06cc\u0631 \u0645\u062e\u062a\u0644\u0641 \u062a\u0642\u0644\u06cc\u062f \u0645\u06cc \u06a9\u0646\u062f 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