{"id":28419,"date":"2026-08-28T06:28:35","date_gmt":"2026-08-28T06:28:35","guid":{"rendered":"https:\/\/umang.pk\/2026\/08\/28\/%d9%85%db%8c%da%ba-%d9%86%db%92-%d8%a7%d9%be%d9%86%db%8c-%d8%b3%d8%a7%d8%a6%d9%b9-%d9%be%d8%b1-%d8%a7%db%8c%da%a9-cdn-%da%a9%db%8c%d8%b4-%d8%b4%d8%a7%d9%85%d9%84-%da%a9%db%8c%d8%a7-%d8%a7%d9%88%d8%b1\/"},"modified":"2026-08-28T06:28:35","modified_gmt":"2026-08-28T06:28:35","slug":"%d9%85%db%8c%da%ba-%d9%86%db%92-%d8%a7%d9%be%d9%86%db%8c-%d8%b3%d8%a7%d8%a6%d9%b9-%d9%be%d8%b1-%d8%a7%db%8c%da%a9-cdn-%da%a9%db%8c%d8%b4-%d8%b4%d8%a7%d9%85%d9%84-%da%a9%db%8c%d8%a7-%d8%a7%d9%88%d8%b1","status":"publish","type":"post","link":"https:\/\/umang.pk\/ur\/2026\/08\/28\/%d9%85%db%8c%da%ba-%d9%86%db%92-%d8%a7%d9%be%d9%86%db%8c-%d8%b3%d8%a7%d8%a6%d9%b9-%d9%be%d8%b1-%d8%a7%db%8c%da%a9-cdn-%da%a9%db%8c%d8%b4-%d8%b4%d8%a7%d9%85%d9%84-%da%a9%db%8c%d8%a7-%d8%a7%d9%88%d8%b1\/","title":{"rendered":"\u0645\u06cc\u06ba \u0646\u06d2 \u0627\u067e\u0646\u06cc \u0633\u0627\u0626\u0679 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\u0631\u0641\u062a\u0627\u0631 \u0646\u0645\u0627\u06cc\u0627\u06ba \u0637\u0648\u0631 \u067e\u0631 \u0633\u0633\u062a \u06c1\u0648\u06af\u0626\u06cc. \u0644\u0637\u06cc\u0641 \u0646\u06c1\u06cc\u06ba: \u062a\u0628\u062f\u06cc\u0644\u06cc\u0627\u06ba \u0646\u0638\u0631 \u0622\u0646\u06d2 \u0633\u06d2 \u067e\u06c1\u0644\u06d2 \u0622\u0632\u0627\u062f \u06a9\u0631\u0627\u0644\u0631 \u0646\u06d2 38 \u0633\u0633\u062a \u0635\u0641\u062d\u0627\u062a \u067e\u0631 \u062c\u06be\u0646\u0688\u0627 \u0644\u06af\u0627\u06cc\u0627 <strong>75<\/strong> \u0627\u0633 \u06a9\u06d2 \u0628\u0639\u062f\u06d4<\/p>\n<p>\u0645\u06cc\u06ba \u0646\u06d2 \u0627\u0633\u06d2 \u0627\u0633\u06cc \u062f\u0646 \u0648\u0627\u067e\u0633 \u06a9\u0631 \u062f\u06cc\u0627\u06d4 \u06cc\u06c1 \u0627\u06cc\u06a9 \u062d\u0633\u0627\u0628 \u06c1\u06d2 \u062c\u0648 \u0622\u067e \u06a9\u0648 \u0628\u062a\u0627\u062a\u0627 \u06c1\u06d2 \u06a9\u06c1 \u06a9\u06cc\u0627 \u06c1\u0648\u0627\u060c \u06a9\u06cc\u0648\u06ba 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\u06cc\u06c1 \u06c1\u06d2 \u06a9\u06c1 \u0627\u06cc\u06a9 CDN \u0627\u0639\u0644\u06cc \u0633\u0637\u062d \u067e\u0631 \u06a9\u06cc\u0627 \u06a9\u0631\u062a\u0627 \u06c1\u06d2:<\/strong> \u06c1\u0645 \u0622\u067e \u06a9\u06d2 \u0635\u0641\u062d\u0627\u062a \u06a9\u06cc \u06a9\u0627\u067e\u06cc\u0627\u06ba \u062f\u0646\u06cc\u0627 \u0628\u06be\u0631 \u06a9\u06d2 \u0633\u0631\u0648\u0631\u0632 \u067e\u0631 \u0645\u062d\u0641\u0648\u0638 \u06a9\u0631\u062a\u06d2 \u06c1\u06cc\u06ba \u0627\u0648\u0631 \u0627\u0646\u06c1\u06cc\u06ba \u0642\u0631\u06cc\u0628\u06cc \u0632\u0627\u0626\u0631\u06cc\u0646 \u06a9\u06d2 \u0644\u06cc\u06d2 \u067e\u06cc\u0634 \u06a9\u0631\u062a\u06d2 \u06c1\u06cc\u06ba\u06d4<\/p>\n<\/li>\n<li>\n<p><strong>\u067e\u06c1\u0644\u06d2 \u0633\u06d2 \u0637\u06d2 \u0634\u062f\u06c1 HTTP \u06a9\u06cc\u0634\u0646\u06af \u06c1\u06cc\u0688\u0631:<\/strong> \u06a9\u0633 \u0628\u0627\u0631\u06d2 \u0645\u06cc\u06ba <code>Cache-Control<\/code> \u0627\u0648\u0631 <code>max-age<\/code> \u0646\u06c1\u06cc\u06ba \u062f\u06cc\u06a9\u06be\u062a\u06d2 \u0645\u06cc\u06ba \u0648\u0636\u0627\u062d\u062a \u06a9\u0631\u062a\u0627 \u06c1\u0648\u06ba <code>s-maxage<\/code> \u0627\u0648\u0631 <code>must-revalidate<\/code> \u0648\u06c1 \u06a9\u06c1\u0627\u06ba \u0633\u06d2 \u0622\u062a\u06d2 \u06c1\u06cc\u06ba.<\/p>\n<\/li>\n<li>\n<p><strong>\u067e\u0691\u06be\u06cc\u06ba<\/strong> <code>curl<\/code> <strong>\u062d\u06a9\u0645:<\/strong> \u0627\u0633 \u0645\u0636\u0645\u0648\u0646 \u0645\u06cc\u06ba \u062a\u0645\u0627\u0645 \u067e\u06cc\u0645\u0627\u0626\u0634\u06cc\u06ba \u0633\u0646\u06af\u0644 \u0644\u0627\u0626\u0646 \u06c1\u06cc\u06ba\u06d4 <code>curl<\/code> \u0622\u067e \u0627\u0633\u06d2 \u0627\u067e\u0646\u06cc \u0633\u0627\u0626\u0679 \u06a9\u06d2 \u062e\u0644\u0627\u0641 \u0686\u0644\u0627 \u0633\u06a9\u062a\u06d2 \u06c1\u06cc\u06ba\u06d4<\/p>\n<\/li>\n<\/ul>\n<p>\u0627\u0633 \u0645\u06cc\u06ba Cloudflare \u06a9\u0627 \u06a9\u0648\u0626\u06cc \u0639\u0644\u0645 \u0646\u06c1\u06cc\u06ba \u06c1\u06d2 \u0627\u0648\u0631 \u0627\u0646\u0633\u0679\u0627\u0644 \u06a9\u0631\u0646\u06d2 \u06a9\u06d2 \u0644\u06cc\u06d2 \u06a9\u0686\u06be \u0628\u06be\u06cc \u0646\u06c1\u06cc\u06ba \u06c1\u06d2\u06d4 \u0627\u06c1\u0645 \u0633\u0628\u0642 \u0631\u06cc\u0627\u0636\u06cc \u06c1\u06d2 \u0627\u0648\u0631 \u062a\u0645\u0627\u0645 CDNs \u067e\u0631 \u0644\u0627\u06af\u0648 \u06c1\u0648\u062a\u0627 \u06c1\u06d2\u06d4<\/p>\n<h2 id=\"heading-the-setup\">\u062a\u0631\u062a\u06cc\u0628<\/h2>\n<p>\u06cc\u06c1 \u0633\u0627\u0626\u0679 \u0627\u06cc\u06a9 \u0645\u0633\u062a\u062d\u06a9\u0645 \u0627\u06cc\u0633\u0679\u0631\u0648 \u0628\u0644\u0688 \u06c1\u06d2\u06d4 77 HTML \u0635\u0641\u062d\u0627\u062a\u060c \u06a9\u0648\u0626\u06cc \u0633\u0631\u0648\u0631 \u0633\u0627\u0626\u06cc\u0688 \u0631\u06cc\u0646\u0688\u0631\u0646\u06af \u0627\u0648\u0631 \u06a9\u0648\u0626\u06cc \u0688\u06cc\u0679\u0627 \u0628\u06cc\u0633 \u0646\u06c1\u06cc\u06ba\u06d4 \u0646\u0648\u06cc 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\u06cc\u06c1 3.5x \u0633\u06d2 \u0632\u06cc\u0627\u062f\u06c1 \u062a\u06be\u0627\u060c \u0627\u0648\u0631 \u0627\u06cc\u06a9 \u0648\u0627\u0636\u062d \u0648\u062c\u06c1 \u06a9\u06d2 \u0633\u0627\u062a\u06be \u0627\u06cc\u06a9 \u0648\u0627\u0636\u062d \u0645\u0633\u0626\u0644\u06c1 \u06a9\u06cc \u0637\u0631\u062d \u0644\u06af\u062a\u0627 \u062a\u06be\u0627\u06d4<\/p>\n<p>\u0648\u062c\u06c1 \u0627\u0635\u0644\u06cc \u062a\u06be\u06cc\u06d4 \u06a9\u0644\u0627\u0624\u0688 \u0641\u0644\u06cc\u0626\u0631 \u06a9\u06cc\u0634 \u06a9\u0631 \u0631\u06c1\u0627 \u062a\u06be\u0627\u06d4 <strong>\u0645\u0648\u062c\u0648\u062f \u0646\u06c1\u06cc\u06ba \u06c1\u06d2<\/strong> HTML \u0645\u06cc\u06ba:<\/p>\n<pre><code class=\"language-plaintext\">$ curl -sI https:\/\/example.com\/ | grep -i 'cache-control|cf-cache-status'\ncache-control: no-cache\ncf-cache-status: DYNAMIC\n<\/code><\/pre>\n<p><code>DYNAMIC<\/code>    \u0627\u0633 \u06a9\u0627 \u0645\u0637\u0644\u0628 \u06cc\u06c1 \u06c1\u06d2 \u06a9\u06c1 Cloudflare \u062c\u0648\u0627\u0628 \u06a9\u0648 \u0628\u0627\u0644\u06a9\u0644 \u0628\u06be\u06cc \u06a9\u06cc\u0634 \u0646\u06c1\u06cc\u06ba \u06a9\u0631\u062a\u0627 \u06c1\u06d2\u06d4 \u06c1\u0631 \u0627\u06cc\u06a9 \u0627\u06cc\u0686 \u0679\u06cc \u0627\u06cc\u0645 \u0627\u06cc\u0644 \u06a9\u06cc \u062f\u0631\u062e\u0648\u0627\u0633\u062a (\u06a9\u0631\u06c1 \u0627\u0631\u0636 \u067e\u0631 \u06c1\u0631 \u0622\u0646\u06d2 \u0648\u0627\u0644\u06d2 \u0627\u0648\u0631 \u06c1\u0631 \u06a9\u0631\u0627\u0644\u0631 \u06a9\u06cc \u0637\u0631\u0641 \u0633\u06d2) \u0646\u06d2 \u0645\u0645\u0628\u0626\u06cc \u062a\u06a9 \u06a9\u0627 \u0633\u0641\u0631 \u06a9\u06cc\u0627\u06d4<\/p>\n<p>\u0627\u0635\u0644\u06cc\u062a \u0645\u0646\u062a\u0642\u0644 \u06c1\u0648 \u0631\u06c1\u06cc \u062a\u06be\u06cc\u06d4 <code>Cache-Control: no-cache<\/code>\u06cc\u06c1 \u0645\u06cc\u0631\u06cc \u0637\u0631\u0641 \u0633\u06d2 \u0627\u06cc\u06a9 \u062c\u0627\u0646 \u0628\u0648\u062c\u06be \u06a9\u0631 \u0627\u0646\u062a\u062e\u0627\u0628 \u062a\u06be\u0627 \u062a\u0627\u06a9\u06c1 \u06cc\u06c1 \u06cc\u0642\u06cc\u0646\u06cc \u0628\u0646\u0627\u06cc\u0627 \u062c\u0627 \u0633\u06a9\u06d2 \u06a9\u06c1 \u062a\u0639\u06cc\u0646\u0627\u062a\u06cc \u0641\u0648\u0631\u06cc \u0637\u0648\u0631 \u067e\u0631 \u0646\u0638\u0631 \u0622 \u0631\u06c1\u06cc \u06c1\u06d2\u06d4 \u062c\u0627\u0645\u062f \u0627\u062b\u0627\u062b\u06d2 (\u062c\u06d2 \u0627\u06cc\u0633\u060c \u0633\u06cc \u0627\u06cc\u0633 \u0627\u06cc\u0633\u060c \u0641\u0648\u0646\u0679\u060c \u0627\u0648\u0631 \u062a\u0635\u0627\u0648\u06cc\u0631) \u0639\u0627\u0645 \u0637\u0648\u0631 \u067e\u0631 \u06a9\u06cc\u0634 \u06a9\u06cc\u06d2 \u06af\u0626\u06d2 \u062a\u06be\u06d2\u06d4 \u0635\u0631\u0641 HTML \u067e\u0627\u0633 \u06c1\u0648\u0627\u06d4<\/p>\n<p>\u0644\u06c1\u0630\u0627 \u0622\u067e \u06a9\u06d2 \u067e\u0627\u0633 \u0645\u06cc\u0679\u0631\u06a9\u0633 \u06c1\u06cc\u06ba \u062c\u0648 \u06a9\u06c1\u062a\u06d2 \u06c1\u06cc\u06ba \u06a9\u06c1 \u0627\u0635\u0644 \u0628\u06c1\u062a \u062f\u0648\u0631 \u06c1\u06d2\u060c \u0627\u06cc\u0686 \u0679\u06cc \u0627\u06cc\u0645 \u0627\u06cc\u0644 \u06a9\u06cc\u0634\u0688 \u0646\u06c1\u06cc\u06ba \u06c1\u06d2\u060c \u0627\u0648\u0631 \u062c\u0648\u0627\u0628 \u0633\u0633\u062a \u06c1\u06d2\u06d4 \u0627\u06af\u0631 \u0622\u067e HTML \u06a9\u0648 \u06a9\u0646\u0627\u0631\u06d2 \u067e\u0631 \u06a9\u06cc\u0634 \u06a9\u0631\u062a\u06d2 \u06c1\u06cc\u06ba \u062a\u0648 \u0645\u0633\u0626\u0644\u06c1 \u062f\u0648\u0631 \u06c1\u0648\u062c\u0627\u062a\u0627 \u06c1\u06d2\u06d4 \u0679\u06be\u06cc\u06a9 \u06c1\u06d2\u061f<\/p>\n<h2 id=\"heading-what-i-changed\">\u0645\u06cc\u06ba \u0646\u06d2 \u06a9\u06cc\u0627 \u0628\u062f\u0644\u0627\u06d4<\/h2>\n<p>\u0645\u06cc\u06ba \u0646\u06d2 \u0627\u0633 \u062a\u0631\u062a\u06cc\u0628 \u0645\u06cc\u06ba \u062f\u0648 \u062a\u0628\u062f\u06cc\u0644\u06cc\u0627\u06ba \u06a9\u06cc\u06ba:<\/p>\n<p><strong>1. \u0627\u0635\u0644 \u06c1\u06cc\u0688\u0631\u06d4<\/strong> \u067e\u0631 <code>no-cache<\/code> \u06a9\u0648:<\/p>\n<pre><code class=\"language-plaintext\">Cache-Control: public, max-age=0, s-maxage=31536000, must-revalidate\n<\/code><\/pre>\n<p>\u06cc\u06c1 \u062c\u0627\u0646\u0646\u06d2 \u06a9\u06d2 \u0642\u0627\u0628\u0644 \u0627\u06cc\u06a9 \u0645\u0641\u06cc\u062f \u0646\u0645\u0648\u0646\u06c1 \u06c1\u06d2\u06d4 <code>max-age=0, must-revalidate<\/code> \u0637\u0631\u06cc\u0642\u06c1 <strong>\u0628\u0631\u0627\u0624\u0632\u0631<\/strong> \u06c1\u0645 \u06c1\u0631 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u067e\u0631 \u062f\u0648\u0628\u0627\u0631\u06c1 \u062a\u0648\u062b\u06cc\u0642 \u06a9\u0631\u062a\u06d2 \u06c1\u06cc\u06ba\u060c \u0644\u06c1\u0630\u0627 \u062a\u0639\u06cc\u0646\u0627\u062a\u06cc\u0627\u06ba \u0641\u0648\u0631\u06cc \u0637\u0648\u0631 \u067e\u0631 \u0635\u0627\u0631\u0641\u06cc\u0646 \u06a9\u0648 \u062f\u06a9\u06be\u0627\u0626\u06cc \u062f\u06cc\u062a\u06cc \u06c1\u06cc\u06ba\u06d4 <code>no-cache<\/code> \u06af\u0627\u0631\u0646\u0679\u06cc\u06d4 \u0644\u06cc\u06a9\u0646 <code>s-maxage<\/code> \u0644\u0627\u06af\u0648 \u06c1\u0648\u062a\u0627 \u06c1\u06d2\u06d4 <strong>\u0635\u0631\u0641 \u0645\u0634\u062a\u0631\u06a9\u06c1 \u06a9\u06cc\u0634\u06d2<\/strong>CDN \u0627\u0634\u06cc\u0627\u0621 \u06a9\u0648 \u0627\u06cc\u06a9 \u0633\u0627\u0644 \u062a\u06a9 \u0628\u0631\u0642\u0631\u0627\u0631 \u0631\u06a9\u06be \u0633\u06a9\u062a\u0627 \u06c1\u06d2 \u062c\u0628 \u062a\u06a9 \u06a9\u06c1 \u0628\u0631\u0627\u0624\u0632\u0631 \u0627\u0646\u06c1\u06cc\u06ba \u0686\u06cc\u06a9 \u06a9\u0631\u062a\u0627 \u0631\u06c1\u06d2\u06d4<\/p>\n<p><strong>2. Cloudflare \u06a9\u06cc\u0634\u06d2 \u06a9\u06d2 \u0642\u0648\u0627\u0639\u062f\u06d4<\/strong> \u06cc\u06c1 \u0648\u06c1 \u062a\u0641\u0635\u06cc\u0644\u0627\u062a \u06c1\u06cc\u06ba \u062c\u0646\u06c1\u0648\u06ba \u0646\u06d2 \u0645\u062c\u06be\u06d2 \u062d\u06cc\u0631\u0627\u0646 \u06a9\u0631 \u062f\u06cc\u0627: \u0627\u06a9\u06cc\u0644\u06d2 \u06c1\u06cc\u0688\u0631 \u06a9\u0686\u06be \u0646\u06c1\u06cc\u06ba \u06a9\u0631\u062a\u06d2\u06d4 Cloudflare \u0628\u063a\u06cc\u0631 \u0627\u06cc\u06a9\u0633\u0679\u06cc\u0646\u0634\u0646 \u06a9\u06d2 HTML \u06a9\u0648 \u06a9\u06cc\u0634 \u0646\u06c1\u06cc\u06ba \u06a9\u0631\u062a\u0627 \u06c1\u06d2\u06d4 <code>Cache-Control<\/code> \u06c1\u06cc\u0688\u0631 \u0645\u06cc\u06ba \u0646\u06d2 \u0627\u0633\u06d2 \u0641\u0631\u0636 \u06a9\u0631\u0646\u06d2 \u06a9\u06d2 \u0628\u062c\u0627\u0626\u06d2 \u06cc\u06a9 \u0637\u0631\u0641\u06c1 \u0631\u0627\u0633\u062a\u06d2 \u067e\u0631 \u0686\u06cc\u06a9 \u06a9\u06cc\u0627\u06d4<\/p>\n<pre><code class=\"language-plaintext\">req 1: cf-cache-status: DYNAMIC\nreq 2: cf-cache-status: DYNAMIC\nreq 3: cf-cache-status: DYNAMIC\n<\/code><\/pre>\n<p>5 \u062f\u0631\u062e\u0648\u0627\u0633\u062a\u06cc\u06ba\u06d4 <code>s-maxage<\/code> \u0645\u06cc\u06ba \u0646\u06d2 \u0627\u0633\u06d2 1 \u0633\u0627\u0644 \u067e\u0631 \u0633\u06cc\u0679 \u06a9\u06cc\u0627 \u0644\u06cc\u06a9\u0646 \u067e\u06be\u0631 \u0628\u06be\u06cc <code>DYNAMIC<\/code> \u06c1\u0631 \u0628\u0627\u0631. \u062c\u0648\u0627\u0628 \u06a9\u0648 \u0646\u0634\u0627\u0646 \u0632\u062f \u06a9\u0631\u0646\u06d2 \u06a9\u06d2 \u0644\u06cc\u06d2 \u0627\u06cc\u06a9 \u0648\u0627\u0636\u062d \u06a9\u06cc\u0634 \u0627\u0635\u0648\u0644 \u062f\u0631\u06a9\u0627\u0631 \u06c1\u06d2\u06d4 <em>\u06a9\u06cc\u0634 \u06a9\u06d2 \u0644\u0626\u06d2 \u0627\u0686\u06be\u0627 \u06c1\u06d2<\/em>. \u06cc\u06c1 \u0627\u0635\u0644 \u0645\u06cc\u06ba \u0627\u06cc\u06a9 \u0645\u0641\u06cc\u062f \u067e\u0631\u0627\u067e\u0631\u0679\u06cc \u06c1\u06d2\u06d4 \u0627\u0633 \u06a9\u0627 \u0645\u0637\u0644\u0628 \u06c1\u06d2 \u06a9\u06c1 \u06a9\u06cc\u0634\u0646\u06af \u0622\u0646 \u06c1\u0648\u0646\u06d2 \u0633\u06d2 \u067e\u06c1\u0644\u06d2 \u06c1\u06cc\u0688\u0631 \u06a9\u06cc \u062a\u0628\u062f\u06cc\u0644\u06cc\u0648\u06ba \u06a9\u0648 \u0645\u062d\u0641\u0648\u0638 \u0637\u0631\u06cc\u0642\u06d2 \u0633\u06d2 \u067e\u06be\u06cc\u0644\u0627\u06cc\u0627 \u062c\u0627 \u0633\u06a9\u062a\u0627 \u06c1\u06d2\u06d4<\/p>\n<p>\u0627\u06cc\u06a9 \u0628\u0627\u0631 \u062c\u0628 \u0642\u0648\u0627\u0639\u062f \u06a9\u0648 \u062a\u0639\u06cc\u0646\u0627\u062a \u06a9\u06cc\u0627 \u06af\u06cc\u0627 \u062a\u0648\u060c \u0627\u0646\u06c1\u0648\u06ba \u0646\u06d2 \u0628\u0627\u0644\u06a9\u0644 \u0627\u0633\u06cc \u0637\u0631\u062d \u06a9\u0627\u0645 \u06a9\u06cc\u0627\u06d4<\/p>\n<pre><code class=\"language-plaintext\">req 1: cf-cache-status: MISS\nreq 2: cf-cache-status: HIT\nreq 3: cf-cache-status: HIT\n<\/code><\/pre>\n<p>\u0627\u0648\u0631 \u06cc\u06c1 \u0627\u06cc\u06a9 \u0641\u062a\u062d \u06a9\u06cc \u0637\u0631\u062d \u0644\u06af \u0631\u06c1\u0627 \u062a\u06be\u0627. \u06af\u0631\u0645 \u0635\u0641\u062d\u06c1 \u06a9\u06d2 \u067e\u06c1\u0644\u06d2 \u0628\u0627\u0626\u0679 \u062a\u06a9 \u06a9\u0627 \u0648\u0642\u062a ~0.28 \u0633\u06cc\u06a9\u0646\u0688 \u0633\u06d2 \u06a9\u0645 \u06c1\u0648 \u06a9\u0631 ~0.17 \u0633\u06cc\u06a9\u0646\u0688 \u06c1\u0648 \u06af\u06cc\u0627\u06d4<\/p>\n<p>\u0645\u06cc\u06ba \u06c1\u0646\u062f\u0648\u0633\u062a\u0627\u0646 \u0645\u06cc\u06ba \u067e\u06cc\u0645\u0627\u0626\u0634 \u06a9\u0631 \u0631\u06c1\u0627 \u062a\u06be\u0627\u06d4 \u0627\u0635\u0644 \u0645\u0644\u06a9 \u06c1\u0646\u062f\u0648\u0633\u062a\u0627\u0646 \u06c1\u06d2\u06d4 <strong>\u0627\u0633 \u0633\u0648\u0686 \u067e\u0631 \u0642\u0627\u0626\u0645 \u0631\u06c1\u0648\u06d4<\/strong><\/p>\n<h2 id=\"heading-the-result\">\u0646\u062a\u06cc\u062c\u06c1<\/h2>\n<p>\u0627\u06af\u0644\u0627 \u06a9\u0631\u0627\u0644 \u0628\u062f\u062a\u0631 \u062a\u06be\u0627\u06d4 \u0648\u06c1\u06cc \u0633\u0627\u0626\u0679\u060c \u0648\u06c1\u06cc \u062f\u0646\u060c \u0648\u06c1\u06cc 80 \u06cc\u0648 \u0622\u0631 \u0627\u06cc\u0644:<\/p>\n<table>\n<thead>\n<tr>\n<th>\u0631\u06cc\u0646\u06af\u0646\u0627<\/th>\n<th>\u0627\u06cc\u0686 \u0679\u06cc \u0627\u06cc\u0645 \u0627\u06cc\u0644 \u06a9\u06cc\u0634\u0646\u06af<\/th>\n<th>\u0645\u06cc\u06ba \u0627\u06cc\u06a9 \u0633\u0633\u062a \u0635\u0641\u062d\u06c1 \u062f\u06cc\u06a9\u06be \u0631\u06c1\u0627 \u06c1\u0648\u06ba\u06d4<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>11:58 AM<\/td>\n<td>\u0628\u0646\u062f \u06a9\u0631 \u062f\u06cc\u06ba<\/td>\n<td><strong>38<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u0634\u0627\u0645 6:04<\/td>\n<td>\u06a9\u0648<\/td>\n<td><strong>75<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u06cc\u06c1 \u0627\u0633 \u0633\u06d2 \u062a\u0642\u0631\u06cc\u0628\u0627\u064b \u062f\u0648\u06af\u0646\u0627 \u06c1\u06d2\u06d4 \u0645\u06cc\u06ba \u0646\u06d2 \u0627\u06cc\u06a9 \u0639\u06cc\u0646 \u0645\u0637\u0627\u0628\u0642 \u0645\u06cc\u0679\u0631\u06a9 \u0628\u0646\u0627\u06cc\u0627 \u06c1\u06d2 \u062c\u0633\u06d2 \u0645\u06cc\u06ba \u0628\u06c1\u062a \u062e\u0631\u0627\u0628 \u06a9\u0648 \u0679\u06be\u06cc\u06a9 \u06a9\u0631\u0646\u06d2 \u06a9\u06cc \u06a9\u0648\u0634\u0634 \u06a9\u0631 \u0631\u06c1\u0627 \u062a\u06be\u0627\u06d4<\/p>\n<h2 id=\"heading-why-it-backfired-part-one-a-miss-is-not-free\">\u06cc\u06c1 \u06a9\u06cc\u0648\u06ba \u0628\u06cc\u06a9 \u0641\u0627\u0626\u0631 \u06c1\u0648\u0627 \u062d\u0635\u06c1 1: MISS \u0645\u0641\u062a \u0646\u06c1\u06cc\u06ba \u06c1\u06d2\u06d4<\/h2>\n<p>\u0645\u06cc\u0631\u06d2 \u067e\u0627\u0633 \u062c\u0648 \u0630\u06c1\u0646\u06cc \u0646\u0645\u0648\u0646\u06c1 \u06c1\u06d2 \u0648\u06c1 \u06cc\u06c1 \u06c1\u06d2 \u06a9\u06c1 \u06a9\u06cc\u0634\u0646\u06af \u062f\u0648 \u0646\u062a\u0627\u0626\u062c \u06a9\u06d2 \u062f\u0631\u0645\u06cc\u0627\u0646 \u0627\u06cc\u06a9 \u0633\u06a9\u06d2 \u06a9\u0627 \u067e\u0644\u0679\u0646\u0627 \u06c1\u06d2: \u0627\u06cc\u06a9 \u062a\u06cc\u0632 HIT \u0627\u0648\u0631 \u0627\u06cc\u06a9 MISS\u060c \u062c\u0633 \u06a9\u06cc \u0642\u06cc\u0645\u062a \u0628\u0627\u0644\u06a9\u0644 \u0628\u06be\u06cc \u06a9\u06cc\u0634 \u06a9\u06d2 \u0628\u0631\u0627\u0628\u0631 \u0646\u06c1\u06cc\u06ba \u06c1\u06d2\u06d4<\/p>\n<p>\u062f\u0648\u0633\u0631\u0627 \u06c1\u0627\u0641 \u063a\u0644\u0637 \u062a\u06be\u0627\u06d4 MISS \u0645\u06cc\u06ba\u060c CDN \u062c\u0648\u0627\u0628 \u06a9\u0648 \u067e\u0631\u0627\u06a9\u0633\u06cc \u06a9\u0648 \u0622\u06af\u06d2 \u0646\u06c1\u06cc\u06ba \u0628\u06be\u06cc\u062c\u062a\u0627 \u06c1\u06d2\u06d4 \u0627\u06cc\u0633\u0627 \u06c1\u06cc \u06c1\u0648\u0646\u0627 \u0686\u0627\u06c1\u06cc\u06d2\u06d4 <strong>\u0627\u0633\u0679\u0648\u0631<\/strong> \u0622\u0628\u062c\u06cc\u06a9\u0679 \u06a9\u0648 \u0627\u0633\u0679\u0631\u06cc\u0645 \u06a9\u06cc\u0627 \u062c\u0627 \u0631\u06c1\u0627 \u06c1\u06d2\u06d4 \u0648\u06c1 \u06a9\u0627\u0645 \u0645\u06c1\u0646\u06af\u0627 \u06c1\u06d2\u06d4<\/p>\n<p>\u0645\u06cc\u06ba \u0646\u06d2 \u06a9\u06cc\u0634\u06d2 \u06a9\u0648 \u06c1\u0679\u0627 \u06a9\u0631 \u0627\u0648\u0631 \u067e\u06be\u0631 \u0627\u0633\u06cc \u0635\u0641\u062d\u06c1 \u06a9\u0648 Cloudflare \u06a9\u06d2 \u0630\u0631\u06cc\u0639\u06d2 \u0628\u0627\u0632\u06cc\u0627\u0641\u062a \u06a9\u0631\u06a9\u06d2 \u0627\u0648\u0631 \u0628\u0631\u0627\u06c1 \u0631\u0627\u0633\u062a \u0627\u0635\u0644 IP \u067e\u0631 \u0627\u0633\u062a\u0639\u0645\u0627\u0644 \u06a9\u0631\u06a9\u06d2 \u0627\u0633 \u06a9\u06cc \u067e\u06cc\u0645\u0627\u0626\u0634 \u06a9\u06cc: <code>--resolve<\/code>.<\/p>\n<pre><code class=\"language-bash\"># through Cloudflare, cache cold\ncurl -s -o \/dev\/null -w '%{time_starttransfer}' https:\/\/example.com\/page\n\n# straight to origin, bypassing Cloudflare entirely\ncurl -sk -o \/dev\/null -w '%{time_starttransfer}' --resolve example.com:443:203.0.113.10 https:\/\/example.com\/page\n<\/code><\/pre>\n<p>6 \u0633\u06d2 \u0632\u06cc\u0627\u062f\u06c1 \u0635\u0641\u062d\u0627\u062a:<\/p>\n<table>\n<thead>\n<tr>\n<th>\u0633\u0691\u06a9<\/th>\n<th>\u0679\u06cc \u0679\u06cc \u0627\u06cc\u0641 \u0628\u06cc<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u06af\u0631\u0645 \u0645\u0627\u0631\u0627<\/td>\n<td><strong>0.239 \u0633\u06cc\u06a9\u0646\u0688<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>\u06a9\u0648\u0644\u0688 \u0645\u0633<\/strong><\/td>\n<td><strong>0.366 \u0633\u06cc\u06a9\u0646\u0688<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u0633\u06cc\u062f\u06be\u06d2 \u0627\u0635\u0644 \u067e\u0631 \u062c\u0627\u0626\u06cc\u06ba (\u06a9\u0648\u0626\u06cc \u06a9\u06cc\u0634\u0646\u06af \u0646\u06c1\u06cc\u06ba)<\/td>\n<td><strong>0.281 \u0633\u06cc\u06a9\u0646\u0688<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u06a9\u06cc\u062a\u06be\u06cc \u0645\u0633 <strong>~85ms \u0633\u0633\u062a<\/strong> \u06a9\u06cc\u0634\u0646\u06af \u0646\u06c1 \u06a9\u0631\u0646\u06d2 \u06a9\u06d2 \u0628\u062c\u0627\u0626\u06d2\u06d4 \u0627\u0633 \u06a9\u0627 \u0645\u0637\u0644\u0628 \u06c1\u06d2 \u06a9\u06c1 \u062a\u0645\u0627\u0645 \u0645\u0633 \u0634\u062f\u06c1 \u062f\u0631\u062e\u0648\u0627\u0633\u062a\u06cc\u06ba \u0627\u0628 \u06c1\u06cc\u06ba\u06d4 <em>\u0686\u06cc\u0632\u06cc\u06ba \u0628\u062f\u062a\u0631 \u06c1\u0648 \u06af\u0626\u06cc<\/em> \u0627\u0633 \u0633\u06d2 \u067e\u06c1\u0644\u06d2 \u06a9\u06c1 \u0645\u06cc\u06ba \u0646\u06d2 \u0634\u0631\u0648\u0639 \u06a9\u06cc\u0627\u06d4<\/p>\n<h2 id=\"heading-why-it-backfired-part-two-crawlers-are-always-cold\">\u06cc\u06c1 \u06a9\u06cc\u0648\u06ba \u0628\u06cc\u06a9 \u0641\u0627\u0626\u0631 \u06c1\u0648\u0627\u060c \u062d\u0635\u06c1 2: \u06a9\u0631\u0627\u0644\u0631\u0632 \u06c1\u0645\u06cc\u0634\u06c1 \u0679\u06be\u0646\u0688\u06d2 \u0631\u06c1\u062a\u06d2 \u06c1\u06cc\u06ba\u06d4<\/h2>\n<p>\u06a9\u06cc\u0634 \u0635\u0631\u0641 \u0627\u0633 \u0648\u0642\u062a \u0627\u062b\u0631 \u0627\u0646\u062f\u0627\u0632 \u06c1\u0648\u062a\u0627 \u06c1\u06d2 \u062c\u0628 \u0627\u06cc\u06a9 \u06c1\u06cc \u06cc\u0648 \u0622\u0631 \u0627\u06cc\u0644 \u06a9\u0648 \u0627\u0633\u06cc \u06a9\u0646\u0627\u0631\u06d2 \u0648\u0627\u0644\u06d2 \u0645\u0642\u0627\u0645 \u0633\u06d2 \u062f\u0648\u0628\u0627\u0631\u06c1 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u06a9\u06cc \u062c\u0627\u062a\u06cc \u06c1\u06d2 \u062c\u0628 \u06a9\u06c1 \u06cc\u06c1 \u0627\u0628\u06be\u06cc \u0628\u06be\u06cc \u06a9\u06cc\u0634\u0688 \u06c1\u06d2\u06d4<\/p>\n<p>\u06a9\u0631\u0627\u0644\u0631 \u0627\u06cc\u0633\u0627 \u0646\u06c1\u06cc\u06ba \u06a9\u0631\u062a\u06d2\u06d4 \u06c1\u0631 \u06cc\u0648 \u0622\u0631 \u0627\u06cc\u0644 \u062d\u0627\u0635\u0644 \u06a9\u0631\u06cc\u06ba\u06d4 <strong>\u0627\u06cc\u06a9 \u0628\u0627\u0631<\/strong>.<\/p>\n<p>\u0645\u06cc\u06ba \u0628\u0627\u0644\u06a9\u0644 \u0627\u0633 \u06a9\u06cc \u062a\u0635\u062f\u06cc\u0642 \u06a9\u0631\u0646\u06d2 \u06a9\u06d2 \u0642\u0627\u0628\u0644 \u062a\u06be\u0627 \u0627\u0648\u0631 \u0679\u06cc\u06a9\u0646\u0627\u0644\u0648\u062c\u06cc \u0686\u0648\u0631\u06cc \u06a9\u06d2 \u0642\u0627\u0628\u0644 \u062a\u06be\u06cc\u06d4 <strong>\u0627\u06af\u0631 CDN \u06a9\u06d2 \u06a9\u06cc\u0634 \u0633\u06d2 \u06a9\u0648\u0626\u06cc \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u067e\u06cc\u0634 \u06a9\u06cc \u062c\u0627\u062a\u06cc \u06c1\u06d2\u060c \u062a\u0648 \u06cc\u06c1 \u06a9\u0628\u06be\u06cc \u0628\u06be\u06cc \u0627\u0635\u0644 \u062a\u06a9 \u0646\u06c1\u06cc\u06ba \u067e\u06c1\u0646\u0686 \u067e\u0627\u0626\u06d2 \u06af\u06cc\u06d4<\/strong> \u0644\u06c1\u0630\u0627\u060c \u0645\u0627\u062e\u0630 \u062a\u06a9 \u0631\u0633\u0627\u0626\u06cc \u06a9\u06d2 \u0644\u0627\u06af\u0632 \u0646\u0627\u06a9\u0627\u0645\u06cc \u06a9\u06cc \u0634\u0631\u062d \u06a9\u0627 \u0628\u0631\u0627\u06c1 \u0631\u0627\u0633\u062a \u067e\u06cc\u0645\u0627\u0646\u06c1 \u06c1\u06cc\u06ba\u06d4<\/p>\n<pre><code class=\"language-bash\">grep -ic \"crawler-user-agent\" \/var\/log\/nginx\/access.log\n<\/code><\/pre>\n<p>\u0631\u06cc\u0646\u06af\u062a\u06d2 \u06c1\u0648\u0626\u06d2 \u06d4 <del>80 \u06cc\u0648 \u0622\u0631 \u0627\u06cc\u0644\u060c \u0645\u062c\u06be\u06d2 \u06a9\u0631\u06cc\u0688\u0679 \u06a9\u06cc\u0627 \u06af\u06cc\u0627 **<\/del>82 \u062f\u0631\u062e\u0648\u0627\u0633\u062a\u06cc\u06ba**\u06d4 \u06a9\u0631\u0627\u0644\u0631 \u06a9\u06d2 \u0630\u0631\u06cc\u0639\u06c1 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u06a9\u0631\u062f\u06c1 \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0627\u062a \u063a\u0627\u0626\u0628 \u06c1\u06cc\u06ba\u06d4 \u06a9\u0648\u0626\u06cc \u0631\u0627\u0633\u062a\u06c1 \u0646\u06c1\u06cc\u06ba <strong>\u06c1\u0679 \u0631\u06cc\u0679 0%<\/strong>\u0627\u0648\u0631 \u0627\u0646 \u0645\u06cc\u06ba \u0633\u06d2 \u0627\u06cc\u06a9 \u0645\u0633 \u0627\u0628 \u0627\u0636\u0627\u0641\u06cc ~85ms \u0644\u06d2 \u06af\u0626\u06cc\u06d4<\/p>\n<p>\u06cc\u06c1\u06cc \u0645\u0646\u0637\u0642 \u067e\u06c1\u0644\u06cc \u0628\u0627\u0631 \u0622\u0646\u06d2 \u0648\u0627\u0644\u0648\u06ba \u067e\u0631 \u0628\u06be\u06cc \u0644\u0627\u06af\u0648 \u06c1\u0648\u062a\u06cc \u06c1\u06d2\u060c \u062c\u0648 \u062a\u0639\u0631\u06cc\u0641 \u06a9\u06d2 \u0645\u0637\u0627\u0628\u0642 \u0633\u0631\u062f \u0628\u06be\u06cc \u0622\u062a\u06d2 \u06c1\u06cc\u06ba\u06d4<\/p>\n<h2 id=\"heading-the-calculation-i-shouldve-done-first\">\u062d\u0633\u0627\u0628 \u0645\u062c\u06be\u06d2 \u067e\u06c1\u0644\u06d2 \u06a9\u0631\u0646\u0627 \u0686\u0627\u06c1\u06cc\u06d2 \u062a\u06be\u0627\u06d4<\/h2>\n<p>\u06cc\u06c1\u0627\u06ba \u067e\u0648\u0631\u06cc \u06a9\u06c1\u0627\u0646\u06cc \u06c1\u06d2: \u0627\u0633 \u0645\u06cc\u06ba \u062a\u0642\u0631\u06cc\u0628\u0627\u064b 1 \u0645\u0646\u0679 \u0644\u06af\u062a\u0627 \u06c1\u06d2\u06d4<\/p>\n<p>\u062a\u06cc\u0646 \u0641\u0648\u0646 \u0646\u0645\u0628\u0631 \u06c1\u06cc\u06ba:<\/p>\n<p>\u06a9\u06cc\u0634\u0646\u06af \u0635\u0631\u0641 \u0627\u0633 \u0635\u0648\u0631\u062a \u0645\u06cc\u06ba \u062c\u06cc\u062a\u062a\u06cc \u06c1\u06d2 \u062c\u0628 \u0627\u0648\u0633\u0637 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0628\u06cc\u0633 \u0644\u0627\u0626\u0646 \u0633\u06d2 \u0632\u06cc\u0627\u062f\u06c1 \u06c1\u0648\u06d4<\/p>\n<pre><code class=\"language-plaintext\">h \u00d7 H + (1 \u2212 h) \u00d7 M  <  B\n<\/code><\/pre>\n<p>\u0627\u067e\u0646\u06cc \u06c1\u0679 \u0631\u06cc\u0679 \u06a9\u0648 \u062d\u0644 \u06a9\u0631\u06cc\u06ba\u06d4 <code>h<\/code>:<\/p>\n<pre><code class=\"language-plaintext\">h  >  (M \u2212 B) \/ (M \u2212 H)\n<\/code><\/pre>\n<p>\u0645\u06cc\u0631\u06d2 \u0641\u0648\u0646 \u0646\u0645\u0628\u0631 \u06a9\u06d2 \u0644\u06cc\u06d2:<\/p>\n<pre><code class=\"language-plaintext\">h > (0.366 \u2212 0.281) \/ (0.366 \u2212 0.239)\nh > 0.085 \/ 0.127\nh > 0.67\n<\/code><\/pre>\n<p><strong>\u0628\u06be\u06cc \u062a\u0648\u0691\u0646\u06d2 \u06a9\u06d2 \u0644\u06cc\u06d2 67% \u06a9\u06cc\u0634 \u06c1\u0679 \u0631\u06cc\u0679 \u06a9\u06cc \u0636\u0631\u0648\u0631\u062a \u062a\u06be\u06cc\u06d4<\/strong><\/p>\n<p>\u0627\u0628 \u062d\u0642\u06cc\u0642\u062a \u06a9\u0627 \u062c\u0627\u0626\u0632\u06c1 \u0644\u06cc\u06ba\u06d4 77 \u0635\u0641\u062d\u0627\u062a\u060c \u062a\u0642\u0631\u06cc\u0628\u0627\u064b 9 \u0632\u0627\u0626\u0631\u06cc\u0646 \u0641\u06cc \u062f\u0646\u060c \u0627\u0648\u0631 \u0627\u06cc\u06a9 \u0633\u0631\u0686 \u06a9\u0631\u0627\u0644\u0631 \u06c1\u0631 \u0686\u0646\u062f \u062f\u0646\u0648\u06ba \u0645\u06cc\u06ba \u06c1\u0631 \u0635\u0641\u062d\u06d2 \u06a9\u0648 \u062f\u0648\u0628\u0627\u0631\u06c1 \u0628\u0627\u0632\u06cc\u0627\u0641\u062a \u06a9\u0631\u062a\u0627 \u06c1\u06d2\u06d4 \u0641\u0631\u0636 \u06a9\u0631\u06cc\u06ba \u06a9\u06c1 \u0631\u0648\u0632\u0627\u0646\u06c1 35 HTML \u062f\u0631\u062e\u0648\u0627\u0633\u062a\u06cc\u06ba 77 URLs \u0645\u06cc\u06ba \u062a\u0642\u0633\u06cc\u0645 \u06a9\u06cc \u062c\u0627\u062a\u06cc \u06c1\u06cc\u06ba\u06d4 <em>\u0627\u0648\u0631<\/em> \u062f\u0646\u06cc\u0627 \u0628\u06be\u0631 \u0645\u06cc\u06ba \u0645\u062a\u0639\u062f\u062f \u06a9\u0646\u0627\u0631\u0648\u06ba \u06a9\u06d2 \u0645\u0642\u0627\u0645\u0627\u062a \u067e\u0631 \u067e\u06be\u06cc\u0644 \u06af\u06cc\u0627\u06d4 \u06c1\u0631 \u062a\u0639\u06cc\u0646\u0627\u062a\u06cc \u06a9\u06d2 \u0633\u0627\u062a\u06be \u067e\u0648\u0631\u06cc \u06a9\u06cc\u0634\u06d2 \u06a9\u0648 \u0635\u0627\u0641 \u06a9\u06cc\u0627 \u062c\u0627\u062a\u0627 \u06c1\u06d2\u06d4<\/p>\n<p>\u0627\u06cc\u06a9 \u062d\u0642\u06cc\u0642\u062a \u067e\u0633\u0646\u062f\u0627\u0646\u06c1 \u06c1\u0679 \u0631\u06cc\u0679 \u0635\u0641\u0631 \u06a9\u06d2 \u0642\u0631\u06cc\u0628 \u06c1\u06d2\u06d4 67 \u0641\u06cc\u0635\u062f \u06a9\u06cc \u0636\u0631\u0648\u0631\u062a \u062a\u06be\u06cc\u06d4<\/p>\n<p>\u062a\u0628\u062f\u06cc\u0644\u06cc \u06a9\u0628\u06be\u06cc \u06a9\u0627\u0645 \u0646\u06c1\u06cc\u06ba \u06a9\u0631\u06d2 \u06af\u06cc \u0627\u0648\u0631 \u0645\u062c\u06be\u06d2 \u06cc\u06c1 \u0645\u0639\u0644\u0648\u0645 \u062a\u06be\u0627 \u06a9\u06c1 \u0627\u0633 \u0633\u06d2 \u067e\u06c1\u0644\u06d2 \u06a9\u06c1 \u0645\u06cc\u06ba \u06a9\u0648\u0626\u06cc \u06a9\u0646\u0641\u06cc\u06af\u0631\u06cc\u0634\u0646 \u0644\u0627\u0626\u0646 \u0644\u06a9\u06be\u0648\u06ba\u06d4<\/p>\n<h2 id=\"heading-the-part-that-stings\">\u0688\u0646\u06a9\u0646\u06d2 \u0648\u0627\u0644\u0627 \u062d\u0635\u06c1<\/h2>\n<p>\u062a\u0634\u062e\u06cc\u0635 \u062f\u0631\u0633\u062a \u062a\u06be\u06cc\u06d4 \u0627\u0635\u0644 \u0645\u06cc\u06ba \u0632\u06cc\u0627\u062f\u06c1 \u062a\u0631 \u0679\u0631\u06cc\u0641\u06a9 \u0633\u06d2 \u0628\u06c1\u062a \u062f\u0648\u0631 \u06c1\u06d2\u06d4 HTML \u0627\u0635\u0644 \u0645\u06cc\u06ba \u06a9\u06cc\u0634\u0688 \u0646\u06c1\u06cc\u06ba \u06c1\u06d2\u06d4 711ms \u0627\u0635\u0644\u06cc \u062a\u06be\u0627\u06d4<\/p>\n<p>\u0645\u06cc\u06ba \u0646\u06d2 \u0628\u063a\u06cc\u0631 \u067e\u0648\u0686\u06be\u06d2 \u0679\u06be\u06cc\u06a9 \u06a9\u0627 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u06cc\u0627\u06d4 <strong>\u062f\u0631\u062e\u0648\u0627\u0633\u062a\u0648\u06ba \u06a9\u0627 \u06a9\u062a\u0646\u0627 \u0641\u06cc\u0635\u062f \u0627\u0635\u0644 \u0645\u06cc\u06ba \u0622\u067e \u06a9\u0648 \u0641\u0627\u0626\u062f\u06c1 \u067e\u06c1\u0646\u0686\u0627\u0626\u06d2 \u06af\u0627\u061f<\/strong>.<\/p>\n<p>\u0627\u0648\u0631 \u0686\u0648\u0646\u06a9\u06c1 \u067e\u06cc\u0645\u0627\u0626\u0634 \u0627\u0633\u06cc \u0645\u0644\u06a9 \u0645\u06cc\u06ba \u0648\u0627\u0642\u0639 \u0627\u06cc\u06a9 \u0644\u06cc\u067e \u0679\u0627\u067e \u0633\u06d2 \u06a9\u06cc \u06af\u0626\u06cc \u062a\u06be\u06cc\u060c \u062a\u0648\u062b\u06cc\u0642 \u06a9\u06d2 \u0646\u062a\u0627\u0626\u062c \u0627\u0648\u0631 \u0628\u06be\u06cc \u062e\u0631\u0627\u0628 \u062a\u06be\u06d2\u06d4 \u0645\u0642\u0627\u0645\u06cc <code>curl<\/code> \u0679\u0627\u0626\u0645\u0646\u06af \u0646\u06d2 \u06a9\u06c1\u0627 \u06a9\u06c1 \u062a\u0628\u062f\u06cc\u0644\u06cc \u06a9\u0627\u0645\u06cc\u0627\u0628 \u0631\u06c1\u06cc\u06d4 \u0635\u0631\u0641 \u0628\u06cc\u0631\u0648\u0646\u06cc \u06a9\u0631\u0627\u0644\u0631 \u062c\u0633 \u0646\u06d2 \u0627\u0628\u062a\u062f\u0627\u0626\u06cc \u0637\u0648\u0631 \u067e\u0631 \u0627\u0633 \u0645\u0633\u0626\u0644\u06d2 \u06a9\u0648 \u0627\u0679\u06be\u0627\u06cc\u0627 \u062a\u06be\u0627 \u0627\u0633 \u0646\u06d2 \u0631\u062c\u0639\u062a \u062f\u06cc\u06a9\u06be\u06cc\u06d4<\/p>\n<p>\u062a\u0648 \u0627\u0633\u06d2 \u0636\u0631\u0648\u0631 \u062f\u06cc\u06a9\u06be\u06cc\u06ba\u06d4 <strong>\u0645\u06cc\u0679\u0631\u06a9\u0633 \u06a9\u06cc \u062c\u0627\u0646\u0686 \u06a9\u0631\u06cc\u06ba \u062c\u0648 \u06a9\u0633\u06cc \u0645\u0633\u0626\u0644\u06d2 \u06a9\u06cc \u0646\u0634\u0627\u0646\u062f\u06c1\u06cc \u06a9\u0631\u062a\u06cc \u06c1\u06cc\u06ba\u060c \u0646\u06c1 \u06a9\u06c1 \u0645\u0633\u0626\u0644\u06d2 \u06a9\u06d2 \u0644\u06cc\u06d2 \u067e\u0631\u0627\u06a9\u0633\u06cc\u06d4<\/strong><\/p>\n<h2 id=\"heading-a-technique-worth-keeping\">\u0631\u06a9\u06be\u0646\u06d2 \u06a9\u06d2 \u0642\u0627\u0628\u0644 \u06c1\u0646\u0631<\/h2>\n<p>\u0627\u0633 \u06a9\u0627 \u0627\u06cc\u06a9 \u062d\u0635\u06c1 \u0645\u06cc\u0631\u06cc \u0648\u0627\u067e\u0633\u06cc \u0633\u06d2 \u0628\u0686 \u06af\u06cc\u0627 \u0627\u0648\u0631 \u0648\u0627\u0642\u0639\u06cc \u0645\u0641\u06cc\u062f \u06c1\u06d2\u06d4<\/p>\n<p>\u0627\u06af\u0631 \u0622\u067e HTML \u06a9\u0648 \u06a9\u0646\u0627\u0631\u06d2 \u067e\u0631 \u06a9\u06cc\u0634 \u06a9\u0631\u062a\u06d2 \u06c1\u06cc\u06ba\u060c \u062a\u0648 \u0622\u067e \u06a9\u06cc \u062a\u0639\u06cc\u0646\u0627\u062a\u06cc \u067e\u0627\u0626\u067e \u0644\u0627\u0626\u0646 \u06a9\u0648 \u0627\u0633 \u06a9\u06cc\u0634 \u06a9\u0648 \u0628\u06d2 \u062f\u062e\u0644 \u06a9\u0631\u0646\u0627 \u0686\u0627\u06c1\u06cc\u06d2\u06d4 \u0627\u0648\u0631 <strong>API \u06a9\u0627\u0644 \u0648\u0627\u067e\u0633 \u0622 \u06af\u0626\u06cc\u06d4<\/strong> <code>\"success\": true<\/code> <strong>\u06cc\u06c1 \u0627\u0633 \u0628\u0627\u062a \u06a9\u0627 \u062b\u0628\u0648\u062a \u0646\u06c1\u06cc\u06ba \u06c1\u06d2 \u06a9\u06c1 \u06a9\u06cc\u0634\u06d2 \u0646\u06d2 \u0627\u0635\u0644 \u0645\u06cc\u06ba \u06a9\u0686\u06be \u0628\u06be\u06cc \u062d\u0630\u0641 \u06a9\u0631 \u062f\u06cc\u0627 \u06c1\u06d2\u06d4<\/strong> \u062a\u0648 \u0627\u0633 \u067e\u0631 \u06cc\u0642\u06cc\u0646 \u0646\u06c1 \u06a9\u0631\u06cc\u06ba\u06d4 \u0686\u06cc\u06a9 \u06a9\u0631\u06cc\u06ba<\/p>\n<pre><code class=\"language-bash\">LOCAL=$(shasum -a 256 dist\/index.html | cut -d' ' -f1)\nLIVE=$(curl -s https:\/\/example.com\/ | shasum -a 256 | cut -d' ' -f1)\n\nif [ \"$LOCAL\" != \"$LIVE\" ]; then\n  echo \"EDGE IS STALE \u2014 this deploy is not live\" >&2\n  exit 3\nfi\n<\/code><\/pre>\n<p>\u0627\u0646 \u0628\u0627\u0626\u0679\u0633 \u06a9\u0627 \u0645\u0648\u0627\u0632\u0646\u06c1 \u06a9\u0631\u06cc\u06ba \u062c\u0648 \u0622\u067e \u06a9\u0627 CDN \u062f\u0631\u062d\u0642\u06cc\u0642\u062a \u067e\u06cc\u0634 \u06a9\u0631\u062a\u0627 \u06c1\u06d2 \u0627\u0646 \u0628\u0627\u0626\u0679\u0633 \u06a9\u06d2 \u0633\u0627\u062a\u06be \u062c\u0648 \u0622\u067e \u0646\u06d2 \u0627\u0628\u06be\u06cc \u062a\u06cc\u0627\u0631 \u06a9\u06cc\u0627 \u06c1\u06d2\u06d4 \u06cc\u06c1 \"\u0641\u0632\u06cc API \u0646\u06d2 \u06a9\u06c1\u0627 \u06a9\u06c1 \u06cc\u06c1 \u0679\u06be\u06cc\u06a9 \u06c1\u06d2\" \u0627\u0648\u0631 \"\u0633\u0627\u0626\u0679 \u06a9\u0648 \u062d\u0642\u06cc\u0642\u062a \u0645\u06cc\u06ba \u0627\u067e \u0688\u06cc\u0679 \u06a9\u06cc\u0627 \u06af\u06cc\u0627 \u062a\u06be\u0627\" \u06a9\u06d2 \u062f\u0631\u0645\u06cc\u0627\u0646 \u0641\u0631\u0642 \u06c1\u06d2\u06d4<\/p>\n<p>\u0645\u062a\u0639\u0644\u0642\u06c1 \u062c\u0627\u0644: \u06c1\u06cc\u0634 \u06c1\u06d2\u06d4 <em>\u0645\u0637\u0644\u0642\u06cc\u062a<\/em> \u0627\u06af\u0631 \u06a9\u0648\u0626\u06cc \u0645\u0645\u0627\u062b\u0644\u062a \u06c1\u06d2 \u062a\u0648\u060c \u0645\u0634\u062a\u0628\u06c1 \u062e\u0635\u0648\u0635\u06cc\u0627\u062a \u062c\u0648 \u06a9\u06c1 \u06a9\u06cc\u0634\u06d2 \u067e\u0631 \u0634\u0628\u06c1 \u06a9\u0631\u0646\u06d2 \u0633\u06d2 \u067e\u06c1\u0644\u06d2 HTML \u06a9\u0648 \u06a9\u0646\u0627\u0631\u06d2 \u067e\u0631 \u062f\u0648\u0628\u0627\u0631\u06c1 \u0644\u06a9\u06be\u062a\u06cc \u06c1\u06cc\u06ba (\u0627\u0633\u06a9\u0631\u067e\u0679 \u0622\u067e\u0679\u06cc\u0645\u0627\u0626\u0632\u0631\u0632\u060c \u0627\u06cc \u0645\u06cc\u0644 \u0627\u0648\u0628\u0633\u06cc\u06a9\u0634\u0646\u060c \u0622\u0679\u0648\u0645\u0646\u06cc\u0641\u06cc\u06a9\u06cc\u0634\u0646)\u06d4<\/p>\n<p>\u0627\u0628\u06be\u06cc \u062a\u06a9 \u0628\u06c1\u062a\u0631 \u06c1\u06d2\u060c \u0627\u0633 \u0645\u0641\u0631\u0648\u0636\u06d2 \u06a9\u0648 \u06c1\u0627\u0631\u0688 \u06a9\u0648\u0688 \u0646\u06c1 \u06a9\u0631\u06cc\u06ba \u06a9\u06c1 \u06a9\u06cc\u0634\u0646\u06af \u0622\u0646 \u06c1\u06d2\u06d4 \u067e\u0648\u0686\u06be\u06cc\u06ba:<\/p>\n<pre><code class=\"language-bash\">STATE=$(curl -sI https:\/\/example.com\/ | tr -d '\\r' | awk 'tolower($1)==\"cf-cache-status:\"{print $2}')\n\ncase \"$STATE\" in\n  DYNAMIC|BYPASS) echo \"HTML isn't cached; a missing purge is harmless\" ;;\n  *)              echo \"HTML IS cached \u2014 a failed purge means this deploy is invisible\" ;;\nesac\n<\/code><\/pre>\n<p>\u0627\u0628\u060c \u0627\u06af\u0631 \u06a9\u0648\u0626\u06cc \u06a9\u06cc\u0634 \u0631\u0648\u0644 \u06a9\u0648 \u0679\u0648\u06af\u0644 \u06a9\u0631\u062a\u0627 \u06c1\u06d2\u060c \u062a\u0648 \u0686\u06cc\u06a9 \u062e\u0627\u0645\u0648\u0634\u06cc \u0633\u06d2 \u062e\u0631\u0627\u0628 \u06c1\u0648\u0646\u06d2 \u06a9\u06d2 \u0628\u062c\u0627\u0626\u06d2 \u062e\u0648\u062f \u0628\u062e\u0648\u062f \u0679\u06be\u06cc\u06a9 \u06c1\u0648 \u062c\u0627\u0626\u06d2 \u06af\u0627\u06d4<\/p>\n<h2 id=\"heading-what-id-tell-you-to-do-instead\">\u0627\u0633 \u06a9\u06d2 \u0628\u062c\u0627\u0626\u06d2 \u0645\u06cc\u06ba \u0622\u067e \u0633\u06d2 \u06a9\u06cc\u0627 \u06a9\u06c1\u0646\u0627 \u0686\u0627\u06c1\u062a\u0627 \u06c1\u0648\u06ba\u06d4<\/h2>\n<p>\u062a\u0639\u06cc\u0646\u0627\u062a\u06cc \u0633\u06d2 \u067e\u06c1\u0644\u06d2 \u0627\u067e\u0646\u06cc \u0628\u0631\u06cc\u06a9 \u0627\u06cc\u0648\u0646 \u06c1\u0679 \u0631\u06cc\u0679 \u06a9\u0627 \u062d\u0633\u0627\u0628 \u0644\u06af\u0627\u0626\u06cc\u06ba\u06d4 <code>(M \u2212 B) \/ (M \u2212 H)<\/code>. \u0627\u06af\u0631 \u0622\u067e \u0645\u0645\u06a9\u0646\u06c1 \u0637\u0648\u0631 \u067e\u0631 \u0648\u06c1\u0627\u06ba \u0646\u06c1\u06cc\u06ba \u062c\u0627\u0633\u06a9\u062a\u06d2 \u06c1\u06cc\u06ba \u062a\u0648 \u0631\u06a9 \u062c\u0627\u0626\u06cc\u06ba\u06d4<\/p>\n<p>\u0627\u067e\u0646\u06cc \u0627\u0635\u0644 \u06c1\u0679 \u0631\u06cc\u0679 \u06a9\u0627 \u0627\u06cc\u0645\u0627\u0646\u062f\u0627\u0631 \u062a\u062e\u0645\u06cc\u0646\u06c1 \u062d\u0627\u0635\u0644 \u06a9\u0631\u06cc\u06ba\u06d4 \u0631\u0648\u0632\u0627\u0646\u06c1 \u06a9\u06cc \u062f\u0631\u062e\u0648\u0627\u0633\u062a\u06cc\u06ba \u06cc\u0648 \u0622\u0631 \u0627\u06cc\u0644 \u0645\u06cc\u06ba \u062a\u0642\u0633\u06cc\u0645 \u06c1\u0648\u062a\u06cc \u06c1\u06cc\u06ba\u060c \u06a9\u0646\u0627\u0631\u0648\u06ba \u06a9\u06d2 \u0645\u0642\u0627\u0645\u0627\u062a \u067e\u0631 \u062f\u0648\u0628\u0627\u0631\u06c1 \u062a\u0642\u0633\u06cc\u0645 \u06c1\u0648\u062a\u06cc \u06c1\u06cc\u06ba\u060c \u0627\u0648\u0631 \u06c1\u0631 \u062a\u0639\u06cc\u0646\u0627\u062a\u06cc \u06a9\u06d2 \u0633\u0627\u062a\u06be \u062f\u0648\u0628\u0627\u0631\u06c1 \u062a\u0631\u062a\u06cc\u0628 \u062f\u06cc \u062c\u0627\u062a\u06cc \u06c1\u06cc\u06ba\u06d4 \u0627\u0633 \u0633\u06d2 \u0628\u06c1\u062a \u06a9\u0645 \u062c\u0648 \u0622\u067e \u0639\u0627\u0645 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