{"id":9331,"date":"2018-04-27T15:23:46","date_gmt":"2018-04-27T15:23:46","guid":{"rendered":"http:\/\/www.ducanhplus.com\/?p=9331"},"modified":"2018-04-27T15:23:46","modified_gmt":"2018-04-27T15:23:46","slug":"tang-toc-do-website-jetpack","status":"publish","type":"post","link":"https:\/\/kiencang.net\/tang-toc-do-website-jetpack\/","title":{"rendered":"C\u00f3 n\u00ean d\u00f9ng CDN v\u00e0 C\u00e1c t\u00ednh n\u0103ng t\u0103ng t\u1ed1c \u0111\u1ed9 website kh\u00e1c c\u1ee7a plugin JetPack?"},"content":{"rendered":"\n<p>M\u1ed9t trong nh\u1eefng t\u00ednh n\u0103ng \u0111\u00e1ng ch\u00fa \u00fd nh\u1ea5t c\u1ee7a <a href=\"https:\/\/kiencang.net\/plugin-jetpack-wordpress\/\" target=\"_blank\" rel=\"noreferrer noopener\">plugin JetPack<\/a> l\u00e0 t\u00ednh n\u0103ng <a href=\"https:\/\/kiencang.net\/tang-toc-wordpress\/\" target=\"_blank\" rel=\"noreferrer noopener\">t\u0103ng t\u1ed1c \u0111\u1ed9 website (WordPress)<\/a> (<em>Jetpack &gt; Settings &gt; Writing &gt; Speed up your site<\/em>).<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2018\/04\/01-tang-toc-do-website.png\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2018\/04\/01-tang-toc-do-website.png\" alt=\"t\u0103ng t\u1ed1c \u0111\u1ed9 website v\u1edbi JetPack\" class=\"wp-image-9337\"\/><\/a><\/figure><\/div>\n\n\n<p>N\u00f3 \u0111\u00e1ng ch\u00fa \u00fd b\u1edfi v\u00ec t\u0103ng t\u1ed1c web lu\u00f4n l\u00e0 v\u1ea5n \u0111\u1ec1 r\u1ea5t quan tr\u1ecdng v\u1edbi b\u1ea5t k\u1ef3 website n\u00e0o, th\u1ee9 n\u1eefa gi\u1ea3i ph\u00e1p m\u00e0 JetPack \u0111\u01b0a ra hi\u1ec7n kh\u00f4ng c\u00f3 plugin mi\u1ec5n ph\u00ed n\u00e0o thay th\u1ebf \u0111\u01b0\u1ee3c: JetPack l\u01b0u \u1ea3nh c\u1ee7a b\u1ea1n tr\u00ean server c\u1ee7a WordPress.com.<\/p>\n\n\n<p>C\u1eadp nh\u1eadt: hi\u1ec7n <a href=\"https:\/\/kiencang.net\/plugin-flying-images\/\" target=\"_blank\" rel=\"noreferrer noopener\">plugin Flying Images<\/a> c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1ea9y \u1ea3nh c\u1ee7a b\u1ea1n l\u00ean CDN mi\u1ec5n ph\u00ed.<\/p>\n\n\n<p>\u0110i\u1ec1u n\u00e0y c\u00f3 t\u00e1c d\u1ee5ng g\u00ec?<\/p>\n\n\n<ul><li>Ch\u1eafc ch\u1eafn n\u00f3 l\u00e0m gi\u1ea3m t\u1ea3i cho hosting c\u1ee7a b\u1ea1n;<\/li><li>N\u00f3 c\u00f3 th\u1ec3 gi\u00fap t\u0103ng t\u1ed1c website.<\/li><\/ul>\n\n\n<p>Nh\u01b0ng c\u00f3 3 v\u1ea5n \u0111\u1ec1:<\/p>\n\n\n<ul><li>\u1ea2nh s\u1ebd b\u1ecb gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng khi l\u01b0u tr\u00ean server c\u1ee7a WordPress.com, li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng \u1ea3nh c\u00f3 b\u1ecb gi\u1ea3m qu\u00e1 m\u1ee9c kh\u00f4ng?<\/li><li>\u1ea2nh l\u00fac n\u00e0y s\u1ebd mang \u0111\u01b0\u1eddng d\u1eabn c\u1ee7a trang b\u00ean ngo\u00e0i, li\u1ec7u n\u00f3 c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn SEO kh\u00f4ng?<\/li><li>C\u00f3 \u0111\u00fang th\u1ef1c n\u00f3 khi\u1ebfn t\u1ed1c \u0111\u1ed9 website \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n kh\u00f4ng?<\/li><\/ul>\n\n\n<p>Ch\u00fang ta s\u1ebd tr\u1ea3 l\u1eddi t\u1eebng c\u00e2u h\u1ecfi m\u1ed9t.<\/p>\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 xem video chia s\u1ebb ho\u1eb7c \u0111\u1ecdc b\u00e0i vi\u1ebft chi ti\u1ebft:<\/p>\n\n\n<figure><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/uNZEOga3xIE?rel=0\" width=\"640\" height=\"460\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/figure>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_60 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\" role=\"button\"><label for=\"item-6577d61b4adf4\" ><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input aria-label=\"Toggle\" aria-label=\"item-6577d61b4adf4\"  type=\"checkbox\" id=\"item-6577d61b4adf4\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/kiencang.net\/tang-toc-do-website-jetpack\/#Anh_bi_giam_chat_luong_the_nao\" title=\"\u1ea2nh b\u1ecb gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng th\u1ebf n\u00e0o?\">\u1ea2nh b\u1ecb gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng th\u1ebf n\u00e0o?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/kiencang.net\/tang-toc-do-website-jetpack\/#Lieu_no_co_anh_huong_den_SEO_khong\" title=\"Li\u1ec7u n\u00f3 c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn SEO kh\u00f4ng?\">Li\u1ec7u n\u00f3 c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn SEO kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/kiencang.net\/tang-toc-do-website-jetpack\/#Co_dung_thuc_la_toc_do_website_duoc_cai_thien_khong\" title=\"C\u00f3 \u0111\u00fang th\u1ef1c l\u00e0 t\u1ed1c \u0111\u1ed9 website \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n kh\u00f4ng?\">C\u00f3 \u0111\u00fang th\u1ef1c l\u00e0 t\u1ed1c \u0111\u1ed9 website \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/kiencang.net\/tang-toc-do-website-jetpack\/#The_Lazy_load_images_la_cai_gi\" title=\"Th\u1ebf Lazy load images l\u00e0 c\u00e1i g\u00ec?\">Th\u1ebf Lazy load images l\u00e0 c\u00e1i g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/kiencang.net\/tang-toc-do-website-jetpack\/#Ket_luan\" title=\"K\u1ebft lu\u1eadn\">K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Anh_bi_giam_chat_luong_the_nao\"><\/span><span style=\"background-color: #ffff00;\">\u1ea2nh b\u1ecb gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng th\u1ebf n\u00e0o?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>H\u00e3y nh\u00ecn 2 b\u1ee9c \u1ea3nh n\u00e0y. \u0110\u00e2y l\u00e0 \u1ea3nh g\u1ed1c:<\/p>\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2018\/04\/mat-troi-chieu-vao-canh-hoa-goc.jpg\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2018\/04\/mat-troi-chieu-vao-canh-hoa-goc.jpg\" alt=\"\u1ea2nh g\u1ed1c\" class=\"wp-image-9332\"\/><\/a><figcaption>\u1ea2nh g\u1ed1c &#8211; 105KB<\/figcaption><\/figure>\n\n\n<p>C\u00f2n \u0111\u00e2y l\u00e0 \u1ea3nh l\u01b0u tr\u00ean server c\u1ee7a WordPress th\u00f4ng qua t\u00ednh n\u0103ng c\u1ee7a JetPack:<\/p>\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2018\/04\/mat-troi-chieu-vao-canh-hoa-jetpack.jpg\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2018\/04\/mat-troi-chieu-vao-canh-hoa-jetpack.jpg\" alt=\"\u1ea2nh l\u01b0u tr\u00ean server c\u1ee7a WordPress\" class=\"wp-image-9333\"\/><\/a><figcaption>\u1ea2nh l\u01b0u tr\u00ean server c\u1ee7a WordPress &#8211; 88KB<\/figcaption><\/figure>\n\n\n<p>Nh\u01b0 v\u1eady ch\u1ea5t l\u01b0\u1ee3ng \u1ea3nh JPG c\u00f3 suy gi\u1ea3m, m\u1eb7c d\u00f9 kh\u00f4ng nhi\u1ec1u nh\u01b0ng nh\u1eadn ra \u0111\u01b0\u1ee3c.<\/p>\n\n\n<p>C\u00f2n v\u1edbi \u1ea3nh PNG th\u00ec sao?<\/p>\n\n\n<p>\u0110\u00e2y l\u00e0 \u1ea3nh g\u1ed1c:<\/p>\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2018\/04\/GDP-price-level-goc.png\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2018\/04\/GDP-price-level-goc.png\" alt=\"\u1ea2nh g\u1ed1c PNG\" class=\"wp-image-9334\"\/><\/a><figcaption>\u1ea2nh g\u1ed1c PNG &#8211; 76KB<\/figcaption><\/figure>\n\n\n<p>C\u00f2n \u0111\u00e2y l\u00e0 \u1ea3nh l\u01b0u tr\u00ean server c\u1ee7a WordPress:<\/p>\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2018\/04\/GDP-price-level-JetPack.png\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2018\/04\/GDP-price-level-JetPack.png\" alt=\"\u1ea2nh PNG l\u01b0u tr\u00ean server c\u1ee7a WordPress\" class=\"wp-image-9335\"\/><\/a><figcaption>\u1ea2nh PNG l\u01b0u tr\u00ean server c\u1ee7a WordPress &#8211; 32KB<\/figcaption><\/figure>\n\n\n<p>V\u1edbi \u1ea3nh PNG, dung l\u01b0\u1ee3ng \u1ea3nh gi\u1ea3m r\u1ea5t t\u1ed1t (v\u1edbi \u1ea3nh tr\u00ean l\u00e0 h\u01a1n 50%) trong khi ch\u1ea5t l\u01b0\u1ee3ng \u1ea3nh h\u1ea7u nh\u01b0 kh\u00f4ng thay \u0111\u1ed5i g\u00ec (kh\u00f4ng nh\u1eadn ra \u0111\u01b0\u1ee3c b\u1eb1ng m\u1eaft th\u01b0\u1eddng).<\/p>\n\n\n<p>Nh\u01b0 v\u1eady n\u1ebfu trang web c\u1ee7a b\u1ea1n bao g\u1ed3m ch\u1ee7 y\u1ebfu c\u00e1c \u1ea3nh JPG c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng trung b\u00ecnh th\u00ec th\u00f4ng qua JetPack \u1ea3nh s\u1ebd c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng x\u1ea5u \u0111i \u0111\u00e1ng k\u1ec3. N\u1ebfu web c\u1ee7a b\u1ea1n ch\u1ee7 y\u1ebfu l\u00e0 \u1ea3nh PNG th\u00ec d\u00f9ng JetPack h\u1ea7u nh\u01b0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng g\u00ec.<\/p>\n\n\n<p>K\u1ebft lu\u1eadn: t\u1ed1t nh\u1ea5t b\u1ea1n n\u00ean th\u1eed, n\u1ebfu \u1ea3nh x\u1ea5u \u0111i qu\u00e1 m\u1ee9c th\u00ec kh\u00f4ng n\u00ean d\u00f9ng JetPack n\u1eefa.<\/p>\n\n\n<p>P\/S: C\u00f3 c\u00e1ch kh\u00e1c b\u1ea1n v\u1eabn gi\u1ea3m \u0111\u01b0\u1ee3c dung l\u01b0\u1ee3ng \u1ea3nh m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng, \u0111\u00f3 l\u00e0 n\u00e9n kh\u00f4ng m\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng. B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm <a href=\"https:\/\/kiencang.net\/plugin-nen-anh-wordpress\/\" target=\"_blank\" rel=\"noreferrer noopener\">plugin n\u00e9n \u1ea3nh<\/a> \u0111\u1ec3 \u0111\u1ea3m nhi\u1ec7m c\u00f4ng vi\u1ec7c n\u00e0y.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Lieu_no_co_anh_huong_den_SEO_khong\"><\/span><span style=\"background-color: #ffff00;\">Li\u1ec7u n\u00f3 c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn SEO kh\u00f4ng?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>\u0110\u00e2y l\u00e0 c\u00e2u h\u1ecfi d\u1ec5 hi\u1ec3u, b\u1edfi v\u00ec JetPack s\u1ebd l\u01b0u \u1ea3nh tr\u00ean host c\u1ee7a WordPress v\u00e0 s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng d\u1eabn kh\u00e1c:<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2018\/04\/02-duong-dan-anh-khac.png\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2018\/04\/02-duong-dan-anh-khac.png\" alt=\"\u0111\u01b0\u1eddng d\u1eabn \u1ea3nh kh\u00e1c\" class=\"wp-image-9341\"\/><\/a><\/figure><\/div>\n\n\n<p>\u0110i\u1ec1u n\u00e0y v\u1ec1 l\u00fd thuy\u1ebft s\u1ebd \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn SEO c\u1ee7a b\u1ea1n.<\/p>\n\n\n<p>C\u00e2u h\u1ecfi n\u00e0y \u0111\u01b0\u1ee3c <a href=\"https:\/\/michaelkummer.com\/technology\/is-jetpack-photon-bad-for-seo\/\" target=\"_blank\" rel=\"noreferrer noopener\">Michael Kummer<\/a>&nbsp;g\u1eedi cho JetPack:<\/p>\n\n\n<blockquote class=\"wp-block-quote\"><p>T\u00f4i \u0111\u1ecdc \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 th\u00f4ng tin n\u00f3i r\u1eb1ng l\u01b0u \u1ea3nh th\u00f4ng qua JetPack g\u00e2y \u1ea3nh h\u01b0\u1edfng b\u1ea5t l\u1ee3i \u0111\u1ebfn SEO b\u1edfi v\u00ec n\u00f3 l\u01b0u gi\u1eef \u1ea3nh b\u1eb1ng m\u1ed9t ngu\u1ed3n &#8220;b\u00ean ngo\u00e0i&#8221; (wp.com) thay v\u00ec t\u1eeb t\u00ean mi\u1ec1n g\u1ed1c. H\u1ec7 qu\u1ea3 l\u00e0 Google c\u00f3 th\u1ec3 cho r\u1eb1ng \u1ea3nh kh\u00f4ng \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi t\u00ean mi\u1ec1n g\u1ed1c. B\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3i th\u00edch r\u00f5 r\u00e0ng h\u01a1n kh\u00f4ng n\u1ebfu \u0111i\u1ec1u \u0111\u00f3 l\u00e0 ch\u00ednh x\u00e1c v\u00e0 c\u00f3 c\u00e1ch n\u00e0o gi\u1ea3m thi\u1ec3u t\u00e1c h\u1ea1i \u0111\u00f3?<\/p><\/blockquote>\n\n\n<p>JetPack tr\u1ea3 l\u1eddi nh\u01b0 sau:<\/p>\n\n\n<blockquote class=\"wp-block-quote\"><p>\u0110\u00e2y l\u00e0 c\u00e2u h\u1ecfi hay! Ch\u00ednh v\u00ec l\u00fd do n\u00e0y m\u00e0 JetPack \u0111\u01b0a link \u1ea3nh g\u1ed1c v\u00e0o th\u00f4ng tin c\u1ee7a \u1ea3nh sao ch\u00e9p (m\u00e0 ch\u00fang t\u00f4i \u0111\u01b0a l\u00ean server c\u1ee7a m\u00ecnh), v\u00e0 Google s\u1ebd lu\u00f4n bi\u1ebft \u0111\u01b0\u1ee3c \u0111\u00e2u l\u00e0 \u1ea3nh g\u1ed1c v\u00e0 s\u1ebd l\u1eadp ch\u1ec9 m\u1ee5c cho n\u00f3. Ngo\u00e0i ra, JetPack s\u1ebd c\u1ea3i thi\u1ec7n SEO c\u1ee7a b\u1ea1n nh\u1edd c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 t\u1ea3i trang t\u00ednh tr\u00ean t\u1ed5ng th\u1ec3.<\/p><\/blockquote>\n\n\n<p>V\u1eady l\u00e0 ch\u00fang ta \u0111\u00e3 c\u00f3 c\u00e2u tr\u1ea3 l\u1eddi: JetPack kh\u00f4ng l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn SEO \u1ea3nh c\u1ee7a b\u1ea1n. Tuy nhi\u00ean g\u00ec th\u00ec g\u00ec, v\u1ec1 m\u1eb7t SEO, \u1ea3nh l\u01b0u tr\u00ean host g\u1ed1c c\u1ee7a b\u1ea1n v\u1eabn t\u1ed1t h\u01a1n.<\/p>\n\n\n<p>PS: \u0110\u1ec3 ki\u1ec3m tra \u1ea3nh CDN c\u1ee7a b\u1ea1n c\u00f3 link \u1ea3nh g\u1ed1c canonical header hay kh\u00f4ng, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5: <a href=\"https:\/\/www.seoreviewtools.com\/canonical-url-location-checker\/\" target=\"_blank\" rel=\"noreferrer noopener\">seoreviewtools.com\/canonical-url-location-checker\/<\/a><\/p>\n\n\n<p>V\u00ed d\u1ee5 t\u00f4i ki\u1ec3m tra v\u1edbi \u0111\u01b0\u1eddng d\u1eabn \u1ea3nh c\u0169ng d\u00f9ng CDN c\u1ee7a Ki\u1ebfn c\u00e0ng (t\u00f4i s\u1eed d\u1ee5ng <a href=\"https:\/\/kiencang.net\/gioi-thieu-bunnycdn\/\" target=\"_blank\" rel=\"noreferrer noopener\">d\u1ecbch v\u1ee5 c\u1ee7a BunnyCDN)<\/a>:<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"132\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2021\/01\/canonical.png\" alt=\"\" class=\"wp-image-17958\" srcset=\"https:\/\/kiencang.net\/wp-content\/uploads\/2021\/01\/canonical.png 1024w, https:\/\/kiencang.net\/wp-content\/uploads\/2021\/01\/canonical-300x39.png 300w, https:\/\/kiencang.net\/wp-content\/uploads\/2021\/01\/canonical-768x99.png 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Co_dung_thuc_la_toc_do_website_duoc_cai_thien_khong\"><\/span><span style=\"background-color: #ffff00;\">C\u00f3 \u0111\u00fang th\u1ef1c l\u00e0 t\u1ed1c \u0111\u1ed9 website \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n kh\u00f4ng?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>M\u1ed9t \u0111i\u1ec1u ch\u1eafc ch\u1eafn l\u00e0 th\u00f4ng qua JetPack dung l\u01b0\u1ee3ng \u1ea3nh gi\u1ea3m xu\u1ed1ng \u0111\u00e1ng k\u1ec3, c\u1ed9ng v\u1edbi vi\u1ec7c m\u00e1y ch\u1ee7 CDN \u1edf g\u1ea7n ng\u01b0\u1eddi d\u00f9ng h\u01a1n cho n\u00ean v\u1ec1 l\u00fd thuy\u1ebft t\u1ed1c \u0111\u1ed9 t\u1ea3i trang s\u1ebd \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n theo.<\/p>\n\n\n<p>Tuy nhi\u00ean \u0111i\u1ec1u \u0111\u00f3 s\u1ebd ch\u1ec9 \u0111\u00fang n\u1ebfu host c\u1ee7a JetPack nhanh h\u01a1n ho\u1eb7c b\u1eb1ng host c\u1ee7a b\u1ea1n. Th\u1ef1c t\u1ebf th\u00ec host c\u1ee7a JetPack r\u1ea5t l\u1edbn, v\u00e0 ch\u1eafc ch\u1eafn l\u00e0 l\u1edbn h\u01a1n host c\u1ee7a b\u1ea1n r\u1ed3i, nh\u01b0ng \u0111i\u1ec1u \u0111\u1ea5y kh\u00f4ng \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c host c\u1ee7a JetPack (WordPress) nhanh h\u01a1n. V\u00ec h\u1ecd ph\u1ea3i <em>ph\u1ee5c v\u1ee5 r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi<\/em>. (\u0110\u1ec3 d\u1ec5 hi\u1ec3u \u0111i\u1ec1u \u0111\u00f3 gi\u1ed1ng nh\u01b0 m\u1ed9t gia \u0111\u00ecnh c\u00f3 10 ng\u01b0\u1eddi c\u00f3 th\u1ec3 c\u00f3 t\u1ed5ng thu nh\u1eadp 60 tri\u1ec7u\/th\u00e1ng &#8211; nh\u01b0ng th\u1ef1c t\u1ebf l\u1ea1i kh\u00f4ng b\u1eb1ng gia \u0111\u00ecnh c\u00f3 thu nh\u1eadp 27 tri\u1ec7u\/th\u00e1ng nh\u01b0ng ch\u1ec9 c\u00f3 3 ng\u01b0\u1eddi).<\/p>\n\n\n<p>V\u1eady l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c website c\u00f3 t\u0103ng \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 hay kh\u00f4ng?<\/p>\n\n\n<p>C\u00e1ch \u0111\u01a1n gi\u1ea3n nh\u1ea5t l\u00e0 s\u1eed d\u1ee5ng c\u1ea3m nh\u1eadn, b\u1ea1n b\u1eadt JetPack m\u1ed9t th\u1eddi gian r\u1ed3i d\u1eebng l\u1ea1i \u0111\u1ed1i chi\u1ebfu v\u1edbi khi kh\u00f4ng d\u00f9ng JetPack xem c\u00e1i n\u00e0o nhanh h\u01a1n.<\/p>\n\n\n<p>Nh\u01b0ng c\u1ea3m nh\u1eadn th\u01b0\u1eddng s\u1ebd kh\u00f3 nh\u1eadn bi\u1ebft n\u1ebfu ch\u00eanh l\u1ec7ch kh\u00f4ng l\u1edbn, n\u00ean c\u00e1ch ch\u00ednh x\u00e1c h\u01a1n b\u1ea1n n\u00ean \u0111\u00e1nh gi\u00e1 b\u1eb1ng c\u00e1c \u1ee9ng d\u1ee5ng ki\u1ec3m tra t\u1ed1c \u0111\u1ed9 website chuy\u00ean d\u1ee5ng nh\u01b0:<\/p>\n\n\n<ul><li><a href=\"https:\/\/tools.pingdom.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Pingdom<\/a><\/li><li><a href=\"https:\/\/gtmetrix.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">GTmetrix<\/a><\/li><\/ul>\n\n\n<p>T\u00f4i s\u1ebd th\u1eed xem trang web c\u00f3 v\u00e0 kh\u00f4ng d\u00f9ng ch\u1ee9c n\u0103ng l\u01b0u \u1ea3nh tr\u00ean server c\u1ee7a JetPack c\u00f3 t\u1ed1c \u0111\u1ed9 truy c\u1eadp kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o.<\/p>\n\n\n<p>V\u1edbi GTmetrix (th\u1eed tr\u00ean tr\u00ecnh duy\u1ec7t Chrome, truy c\u1eadp t\u1eeb Canada):<\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>&nbsp;<\/td><td>L\u1ea7n1<\/td><td>L\u1ea7n 2<\/td><td>L\u1ea7n 3<\/td><td>L\u1ea7n 4<\/td><td>L\u1ea7n 5<\/td><\/tr><tr><td>\u1ea2nh JetPack<\/td><td>3,0s<\/td><td><strong>2,1s<\/strong><\/td><td>4,5s<\/td><td>2,7s<\/td><td>&nbsp;<strong>4,0s<\/strong><\/td><\/tr><tr><td>\u1ea2nh t\u1ef1 host<\/td><td><strong>2,6s<\/strong><\/td><td>2,5s<\/td><td><strong>4,4s<\/strong><\/td><td><strong>1,9s<\/strong><\/td><td>&nbsp;4,1s<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p>V\u1edbi Pingdom (truy c\u1eadp t\u1eeb Australia):<\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>&nbsp;<\/td><td>L\u1ea7n 1<\/td><td>L\u1ea7n 2<\/td><td>L\u1ea7n 3<\/td><td>L\u1ea7n 4<\/td><td>L\u1ea7n 5<\/td><\/tr><tr><td>\u1ea2nh JetPack<\/td><td>5,12s<\/td><td>3,65s<\/td><td>4,03s<\/td><td>3,37s<\/td><td>3,62s<\/td><\/tr><tr><td>\u1ea2nh t\u1ef1 host<\/td><td><strong>3,46s<\/strong><\/td><td><strong>3,50s<\/strong><\/td><td><strong>3,62s<\/strong><\/td><td><strong>3,30s<\/strong><\/td><td><strong>3,57s<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p><strong>B\u00f4i \u0111\u1eadm<\/strong> l\u00e0 t\u1ed1t h\u01a1n (t\u1ea3i nhanh h\u01a1n).<\/p>\n\n\n<p>C\u1ea3 2 th\u1eed nghi\u1ec7m \u0111\u1ec1u cho th\u1ea5y \u1ea3nh t\u00f4i t\u1ef1 l\u01b0u tr\u00ean host c\u1ee7a m\u00ecnh cho t\u1ed1c \u0111\u1ed9 website t\u1ed1t h\u01a1n l\u00e0 t\u00f4i nh\u1edd JetPack. C\u00f3 l\u1ebd nguy\u00ean nh\u00e2n l\u00e0 v\u00ec host m\u00e0 t\u00f4i \u0111ang s\u1eed d\u1ee5ng l\u00e0 VPS c\u1ee7a Dreamhost, c\u0169ng thu\u1ed9c nh\u00f3m hosting c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng kh\u00e1 t\u1ed1t.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_Lazy_load_images_la_cai_gi\"><\/span><span style=\"background-color: #ffff00;\">Th\u1ebf Lazy load images l\u00e0 c\u00e1i g\u00ec?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>Gi\u1edd ch\u00fang ta m\u1edbi b\u00e0n \u0111\u1ebfn <a href=\"https:\/\/kiencang.net\/lazy-load-anh-va-video\/\" target=\"_blank\" rel=\"noreferrer noopener\">Lazy load \u1ea3nh<\/a>. N\u00f3 c\u00f3 c\u00f4ng d\u1ee5ng gi\u00fap tr\u00ec ho\u00e3n t\u1ea3i \u1ea3nh, n\u1ebfu b\u1ee9c \u1ea3nh \u0111\u00f3 ch\u01b0a trong t\u1ea7m m\u1eaft ng\u01b0\u1eddi d\u00f9ng. Gi\u1ea3 d\u1ee5 b\u00e0i vi\u1ebft c\u00f3 5 b\u1ee9c \u1ea3nh tr\u1ea3i d\u00e0i t\u1eeb \u0111\u1ea7u \u0111\u1ebfn cu\u1ed1i b\u00e0i vi\u1ebft. Khi ng\u01b0\u1eddi d\u00f9ng m\u1edbi truy c\u1eadp v\u00e0o trang th\u00ec ch\u1ec9 b\u1ee9c \u1ea3nh \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c t\u1ea3i, 4 \u1ea3nh c\u00f2n l\u1ea1i \u1edf ph\u00eda b\u00ean d\u01b0\u1edbi ng\u01b0\u1eddi d\u00f9ng ch\u01b0a \u0111\u1ecdc \u0111\u1ebfn s\u1ebd ch\u01b0a \u0111\u01b0\u1ee3c t\u1ea3i. \u0110i\u1ec1u \u0111\u00f3 gi\u00fap trang web t\u1ea3i nhanh h\u01a1n, v\u00e0 \u0111\u1ee1 l\u00e3ng ph\u00ed t\u00e0i nguy\u00ean (l\u01b0u l\u01b0\u1ee3ng).<\/p>\n\n\n<p>B\u1ea1n xem video b\u00ean d\u01b0\u1edbi \u0111\u1ec3 hi\u1ec3u Lazy load images l\u00e0 g\u00ec:<\/p>\n\n\n<figure><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/Z2DFPgANOVk?rel=0\" width=\"640\" height=\"360\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/figure>\n\n\n<p>Ch\u1eafc ch\u1eafn Lazy load images s\u1ebd c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 c\u1ee7a ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i, \u0111\u1eb7c bi\u1ec7t \u1edf trang c\u00f3 nhi\u1ec1u \u1ea3nh. Tuy nhi\u00ean kh\u00f4ng ph\u1ea3i l\u00e0 n\u00f3 kh\u00f4ng c\u00f3 v\u1ea5n \u0111\u1ec1:<\/p>\n\n\n<ul><li>N\u00f3 c\u00f3 th\u1ec3 g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn SEO, n\u0103m 2015, Google t\u1eebng tuy\u00ean b\u1ed1 r\u1eb1ng h\u1ecd <a href=\"https:\/\/www.seroundtable.com\/google-mobile-lazy-load-content-mobile-20759.html\" target=\"_blank\" rel=\"noreferrer noopener\">kh\u00f4ng th\u1ec3 l\u1eadp ch\u1ec9 m\u1ee5c \u0111\u01b0\u1ee3c t\u1ea5t c\u1ea3 c\u00e1c n\u1ed9i dung lazy load tr\u00ean \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng<\/a>, hi\u1ec7n t\u1ea1i th\u00ec t\u00ecnh h\u00ecnh \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n khi Google s\u1eafp \u0111\u01b0a ra c\u00e1c <a href=\"https:\/\/www.seroundtable.com\/google-lazy-loading-images-seo-25318.html\" target=\"_blank\" rel=\"noreferrer noopener\">khuy\u1ebfn ngh\u1ecb gi\u00fap \u1ea3nh v\u00e0 c\u00e1c n\u1ed9i dung lazy load d\u1ec5 \u0111\u01b0\u1ee3c l\u1eadp ch\u1ec9 m\u1ee5c<\/a> h\u01a1n.<\/li><li>\u0110\u00f4i khi \u1ea3nh load qu\u00e1 ch\u1eadm, ngay \u1edf video tr\u00ean b\u1ea1n \u0111\u00e3 th\u1ea5y, 2 \u1ea3nh \u0111\u1ea7u load kh\u00e1 m\u01b0\u1ee3t nh\u01b0ng \u0111\u1ebfn \u1ea3nh th\u1ee9 3 th\u00ec t\u00f4i ph\u1ea3i \u0111\u1ee3i m\u1ed9t l\u00fac \u1ea3nh m\u1edbi t\u1ea3i \u0111\u01b0\u1ee3c. C\u00f3 th\u1ec3 v\u1ea5n \u0111\u1ec1 n\u00e0y li\u00ean quan ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a t\u1eebng s\u1ea3n ph\u1ea9m lazy load &#8211;&nbsp;t\u00f4i ch\u01b0a c\u00f3 \u0111\u01b0\u1ee3c plugin lazy load t\u1ed1t nh\u1ea5t ch\u0103ng, nh\u01b0ng qu\u1ea3 th\u1ef1c t\u00f4i g\u1eb7p nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p t\u01b0\u01a1ng t\u1ef1 r\u1ed3i.<\/li><\/ul>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span><span style=\"background-color: #ffff00;\">K\u1ebft lu\u1eadn<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>Ch\u1ee9c n\u0103ng t\u0103ng t\u1ed1c c\u1ee7a JetPack qu\u1ea3 l\u00e0 hi\u1ebfm c\u00f3 kh\u00f3 t\u00ecm nh\u01b0ng n\u00f3 kh\u00f4ng ho\u00e0n h\u1ea3o, v\u00e0 b\u1ea1n c\u1ea7n c\u00e2n nh\u1eafc c\u1ea9n th\u1eadn tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng.<\/p>\n\n\n<p>T\u00f4i l\u1eadp ra m\u1ed9t b\u1ea3ng nh\u1ecf \u0111\u1ec3 bi\u1ebft tr\u01b0\u1eddng h\u1ee3p n\u00e0o b\u1ea1n n\u00ean d\u00f9ng &amp; kh\u00f4ng n\u00ean d\u00f9ng t\u00ednh n\u0103ng n\u00e0o:<\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>&nbsp;<\/td><td>Host y\u1ebfu<\/td><td>Host kh\u1ecfe<\/td><td>Nhi\u1ec1u \u1ea3nh<\/td><td>\u1ea2nh ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p<\/td><td>\u1ea2nh PNG<\/td><\/tr><tr><td>\u1ea2nh JetPack<\/td><td>N\u00ean d\u00f9ng<\/td><td>Kh\u00f4ng d\u00f9ng<\/td><td>&nbsp;<\/td><td>Kh\u00f4ng d\u00f9ng<\/td><td>C\u00f3 th\u1ec3 d\u00f9ng<\/td><\/tr><tr><td>Lazy load<\/td><td>N\u00ean d\u00f9ng<\/td><td>&nbsp;<\/td><td>C\u00f3 th\u1ec3 d\u00f9ng<\/td><td>&nbsp;<\/td><td>&nbsp;<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>M\u1ed9t trong nh\u1eefng t\u00ednh n\u0103ng \u0111\u00e1ng ch\u00fa \u00fd nh\u1ea5t c\u1ee7a plugin JetPack l\u00e0 t\u00ednh n\u0103ng t\u0103ng t\u1ed1c \u0111\u1ed9 website (WordPress) (Jetpack &gt; Settings &gt; Writing &gt; Speed up your site). 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