{"id":22033,"date":"2021-02-12T03:03:02","date_gmt":"2021-02-11T20:03:02","guid":{"rendered":"https:\/\/speed.family\/?p=19236"},"modified":"2023-08-22T22:54:33","modified_gmt":"2023-08-22T15:54:33","slug":"6-cap-do-cache-wordpress","status":"publish","type":"post","link":"https:\/\/kiencang.net\/6-cap-do-cache-wordpress\/","title":{"rendered":"6 ki\u1ec3u cache trong WordPress m\u00e0 b\u1ea1n c\u1ea7n bi\u1ebft"},"content":{"rendered":"\n<p>N\u1ebfu b\u1ea1n ham t\u00ecm hi\u1ec3u v\u1ec1&nbsp;<a href=\"https:\/\/kiencang.net\/tang-toc-wordpress\/\" target=\"_blank\" rel=\"noreferrer noopener\">t\u0103ng t\u1ed1c WordPress<\/a>&nbsp;gi\u1ed1ng nh\u01b0 t\u00f4i, b\u1ea1n ch\u1eafc h\u1eb3n \u0111\u00e3 nghe n\u00f3i \u0111\u1ebfn thu\u1eadt ng\u1eef \u201ccaching\u201d. Nh\u01b0ng \u201ccaching \/ cache\u201d l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef chung chung. Trong WordPress c\u00f3 \u0111\u1ebfn 6 c\u1ea5p \u0111\u1ed9 caching.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2021\/02\/cac-cap-do-cache.png\" alt=\"c\u00e1c c\u1ea5p \u0111\u1ed9 cache\" class=\"wp-image-19238\"\/><\/figure><\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\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-6577d7510c240\" ><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-6577d7510c240\"  type=\"checkbox\" id=\"item-6577d7510c240\"><\/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\/6-cap-do-cache-wordpress\/#Cache_kieu_Opcode\" title=\"Cache ki\u1ec3u Opcode\">Cache ki\u1ec3u Opcode<\/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\/6-cap-do-cache-wordpress\/#Object_Cache\" title=\"Object Cache\">Object Cache<\/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\/6-cap-do-cache-wordpress\/#Cache_toan_trang\" title=\"Cache to\u00e0n trang\">Cache to\u00e0n trang<\/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\/6-cap-do-cache-wordpress\/#Gia_toc_HTTP_con_goi_la_HTTP_Accelerators\" title=\"Gia t\u1ed1c HTTP c\u00f2n g\u1ecdi l\u00e0 HTTP Accelerators\">Gia t\u1ed1c HTTP c\u00f2n g\u1ecdi l\u00e0 HTTP Accelerators<\/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\/6-cap-do-cache-wordpress\/#CDN\" title=\"CDN\">CDN<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/kiencang.net\/6-cap-do-cache-wordpress\/#Cache_phia_trinh_duyet\" title=\"Cache ph\u00eda tr\u00ecnh duy\u1ec7t\">Cache ph\u00eda tr\u00ecnh duy\u1ec7t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/kiencang.net\/6-cap-do-cache-wordpress\/#Vay_thi_toi_nen_su_dung_kieu_Caching_nao\" title=\"V\u1eady th\u00ec t\u00f4i n\u00ean s\u1eed d\u1ee5ng ki\u1ec3u Caching n\u00e0o?\">V\u1eady th\u00ec t\u00f4i n\u00ean s\u1eed d\u1ee5ng ki\u1ec3u Caching n\u00e0o?<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"cache-ki\u1ec3u-opcode\"><span class=\"ez-toc-section\" id=\"Cache_kieu_Opcode\"><\/span>Cache ki\u1ec3u Opcode<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>M\u00e3 PHP \u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng th\u00e2n thi\u1ec7n v\u1edbi con ng\u01b0\u1eddi. Nh\u01b0ng \u0111\u1ec3 m\u00e1y t\u00ednh hi\u1ec3u \u0111\u01b0\u1ee3c m\u00e3, n\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh m\u00e3 m\u00e1y (machine code). Theo m\u1eb7c \u0111\u1ecbnh, m\u1ed7i y\u00eau c\u1ea7u \u0111\u1ebfn m\u00e1y ch\u1ee7 c\u1ea7n ph\u1ea3i bi\u00ean d\u1ecbch th\u00e0nh m\u00e3 m\u00e1y.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote\">\n<p>Opcode l\u01b0u gi\u1eef b\u1ea3n cache c\u1ee7a c\u00e1c m\u00e3 m\u00e1y \u0111\u00f3 trong b\u1ed9 nh\u1edb, v\u00ec th\u1ebf nh\u1eefng y\u00eau c\u1ea7u ti\u1ebfp theo,&nbsp;<strong>chuy\u1ec3n \u0111\u1ed5i \u0111\u00f3 kh\u00f4ng c\u1ea7n thi\u1ebft n\u1eefa<\/strong>&nbsp;qua \u0111\u00f3 gi\u00fap t\u0103ng t\u1ed1c.<\/p>\n<\/blockquote>\n\n\n\n<p>PHP v5.5 v\u00e0 c\u00e1c phi\u00ean b\u1ea3n cao h\u01a1n&nbsp;<em>\u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i s\u1eb5n b\u1ed9 \u0111\u1ec7m Opcode<\/em>. Li\u00ean h\u1ec7 v\u1edbi&nbsp;<a href=\"https:\/\/kiencang.net\/mua-hosting-cho-wordpress\/\" target=\"_blank\" rel=\"noreferrer noopener\">nh\u00e0 cung c\u1ea5p hosting c\u1ee7a b\u1ea1n<\/a>&nbsp;\u0111\u1ec3 x\u00e1c minh \u0111i\u1ec1u n\u00e0y.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"825\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2021\/02\/luoc-do-opcache.png\" alt=\"\" class=\"wp-image-19237\" srcset=\"https:\/\/kiencang.net\/wp-content\/uploads\/2021\/02\/luoc-do-opcache.png 768w, https:\/\/kiencang.net\/wp-content\/uploads\/2021\/02\/luoc-do-opcache-279x300.png 279w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/figure><\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"object-cache\"><span class=\"ez-toc-section\" id=\"Object_Cache\"><\/span>Object Cache<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/kiencang.net\/toi-uu-database-wordpress-toan-dien\/\" target=\"_blank\" rel=\"noreferrer noopener\">MySQL l\u00e0 ph\u01b0\u01a1ng ti\u1ec7n d\u1ec5 l\u00e0m ti\u00eau hao t\u00e0i nguy\u00ean<\/a>.&nbsp;M\u1ed7i l\u1ea7n b\u1ea1n m\u1edf m\u1ed9t trang\/b\u00e0i vi\u1ebft trong WordPress, n\u00f3 s\u1ebd th\u1ef1c thi t\u1ed1i thi\u1ec3u 27 truy v\u1ea5n MySQL. V\u00e0 27 ch\u1ec9 l\u00e0 s\u1ed1 l\u01b0\u1ee3ng truy v\u1ea5n m\u1eb7c \u0111\u1ecbnh m\u00e0 th\u00f4i, n\u00f3 c\u00f2n c\u00f3 th\u1ec3 l\u00ean \u0111\u1ebfn 50 ho\u1eb7c 100 t\u00f9y thu\u1ed9c v\u00e0o theme (giao di\u1ec7n) c\u1ee7a b\u1ea1n v\u00e0 s\u1ed1 l\u01b0\u1ee3ng c\u00e1c plugin \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t. M\u1ed7i truy v\u1ea5n n\u00e0y c\u1ea7n v\u00e0i mili gi\u00e2y t\u00f9y thu\u1ed9c v\u00e0o k\u00edch c\u1ee1 c\u1ee7a truy v\u1ea5n SQL v\u00e0 d\u1eef li\u1ec7u trong database c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<p>H\u1ea7u h\u1ebft th\u1eddi gian, c\u00e1c k\u1ebft qu\u1ea3 truy v\u1ea5n SQL c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c cache tr\u00ean \u0111\u0129a (disk) ho\u1eb7c b\u1ed9 nh\u1edb RAM, c\u00e1i n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 object caching.&nbsp;Do \u0111\u00f3 ch\u00fang ta \u0111\u00e3 t\u0103ng t\u1ed1c truy v\u1ea5n b\u1eb1ng c\u00e1ch gi\u1ea3m t\u1ea3i c\u00f4ng vi\u1ec7c t\u1eeb MySQL v\u00e0 c\u0169ng s\u1eed d\u1ee5ng \u00edt t\u00e0i nguy\u00ean m\u00e1y ch\u1ee7 h\u01a1n.<\/p>\n\n\n\n<p><strong>Redis<\/strong>&nbsp;v\u00e0&nbsp;<strong>Memcached&nbsp;<\/strong>l\u00e0 hai ph\u1ea7n m\u1ec1m t\u01b0\u01a1ng t\u1ef1 nhau gi\u00fap cache nh\u1eefng k\u1ebft qu\u1ea3 n\u00e0y trong b\u1ed9 nh\u1edb. T\u1ed1c \u0111\u1ed9 \u0111\u1ecdc v\u00e0 vi\u1ebft c\u1ee7a ch\u00fang nhanh h\u01a1n nhi\u1ec1u so v\u1edbi vi\u1ec7c \u0111\u1ecdc v\u00e0 ghi t\u1eeb MySQL\/MariaDB.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"cache-toan-trang\"><span class=\"ez-toc-section\" id=\"Cache_toan_trang\"><\/span>Cache to\u00e0n trang<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>N\u1ebfu b\u1ea1n c\u00f3 b\u00e0i \u0111\u0103ng blog ho\u1eb7c c\u00e1c s\u1ea3n ph\u1ea9m woocommerce, n\u1ed9i dung c\u1ee7a b\u1ea1n kh\u00f4ng thay \u0111\u1ed5i th\u01b0\u1eddng xuy\u00ean. V\u00ec th\u1ebf l\u00fd t\u01b0\u1edfng l\u00e0 t\u1ea1o ra phi\u00ean b\u1ea3n HTML c\u1ee7a trang thay v\u00ec t\u1ea1o n\u00f3 t\u1eeb PHP cho m\u1ed7i y\u00eau c\u1ea7u.<\/p>\n\n\n\n<p>\u0110\u00e2y l\u00e0 \u0111i\u1ec1u m\u00e0 caching to\u00e0n trang th\u1ef1c hi\u1ec7n. N\u00f3 t\u1ea1o trang ho\u00e0n ch\u1ec9nh l\u01b0u tr\u1eef d\u01b0\u1edbi d\u1ea1ng HTML tr\u00ean \u0111\u0129a c\u1ee9ng (disk). C\u00e1c y\u00eau c\u1ea7u \u0111\u1ebfn trang \u0111\u01b0\u1ee3c ph\u1ee5c v\u1ee5 tr\u1ef1c ti\u1ebfp t\u1eeb file HTML.<\/p>\n\n\n\n<p>C\u00e1c plugin cache nh\u01b0&nbsp;<a href=\"https:\/\/wp-rocket.me\/\" target=\"_blank\" rel=\"noreferrer noopener\">WP Rocket<\/a>, <a href=\"https:\/\/swiftperformance.io\/\" target=\"_blank\" rel=\"noreferrer noopener\">Swift Performance<\/a>&nbsp;t\u1ea1o ra c\u00e1c trang HTML \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u t\u1ed1t t\u1eeb m\u00e1y ch\u1ee7 c\u1ee7a h\u1ecd v\u00e0 l\u01b0u tr\u1eef n\u00f3 tr\u00ean m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"gia-t\u1ed1c-http-con-g\u1ecdi-la-http-accelerators\"><span class=\"ez-toc-section\" id=\"Gia_toc_HTTP_con_goi_la_HTTP_Accelerators\"><\/span>Gia t\u1ed1c HTTP c\u00f2n g\u1ecdi l\u00e0 HTTP Accelerators<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u0110\u00e2y l\u00e0 c\u1ea5p \u0111\u1ed9 ti\u1ebfp theo c\u1ee7a caching to\u00e0n trang. Vi\u1ec7c t\u1ea1o trang trong \u201ccache to\u00e0n trang\u201d n\u00f3i trong m\u1ee5c 3 \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong \u1ed5 c\u1ee9ng. \u0110\u1ecdc v\u00e0 ghi t\u1eeb \u1ed5 c\u1ee9ng (ngay c\u1ea3 t\u1eeb \u1ed5 SSD) v\u1eabn l\u00e0 ch\u1eadm khi so s\u00e1nh v\u1edbi vi\u1ec7c \u0111\u1ecdc t\u1eeb b\u1ed9 nh\u1edb trong (RAM).<\/p>\n\n\n\n<p>Nh\u01b0 b\u1ea1n th\u1ea5y \u1edf ph\u1ea7n tr\u00ean, Redis v\u00e0 Memcached th\u1ef1c s\u1ef1 l\u00e0m vi\u1ec7c t\u1ed1t trong ki\u1ec3u caching b\u1ed9 nh\u1edb trong (RAM). D\u00f9 v\u1eady th\u00ec Varnish \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang cho vi\u1ec7c caching c\u00e1c y\u00eau c\u1ea7u HTTP v\u00e0 cung c\u1ea5p nhi\u1ec1u t\u00ednh n\u0103ng kh\u00e1c hay h\u01a1n Redis.&nbsp;<a href=\"https:\/\/kiencang.net\/plugin-cache-vs-fastcgi\/\" target=\"_blank\" rel=\"noreferrer noopener\">FastCGI v\u1edbi Nginx<\/a>&nbsp;c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c tinh ch\u1ec9nh \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00f9ng k\u1ebft qu\u1ea3 trong caching b\u1ed9 nh\u1edb trong.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"cdn\"><span class=\"ez-toc-section\" id=\"CDN\"><\/span>CDN<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/kiencang.net\/cdn-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">CDN (Content Delivry Network)<\/a>&nbsp;l\u00e0 m\u1ed9t m\u1ea1ng l\u01b0\u1edbi m\u00e1y ch\u1ee7 ph\u00e2n t\u00e1n kh\u1eafp to\u00e0n c\u1ea7u. B\u1ea1n c\u00f3 th\u1ec3 l\u01b0u tr\u1eef b\u1ea3n sao ch\u00e9p c\u00e1c file t\u0129nh (CSS, JS, \u1ea3nh, v\u00e2n v\u00e2n) trong c\u00e1c m\u00e1y ch\u1ee7 n\u00e0y. V\u00ec th\u1ebf khi ai \u0111\u00f3 gh\u00e9 th\u0103m trang web c\u1ee7a b\u1ea1n, c\u00e1c file t\u0129nh n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c ph\u00e2n ph\u1ed1i t\u1eeb m\u00e1y ch\u1ee7 g\u1ea7n nh\u1ea5t trong h\u1ec7 th\u1ed1ng CDN.<\/p>\n\n\n\n<p>N\u1ebfu website c\u1ee7a b\u1ea1n ch\u1ee7 y\u1ebfu l\u00e0 n\u1ed9i dung t\u0129nh, b\u1ea1n c\u0169ng th\u1eadm ch\u00ed c\u00f3 th\u1ec3 cache trang HTML trong CDN (hi\u1ec7n ch\u1ec9 c\u00f3 QUIC cloud vs Cloudflare l\u00e0m \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y).<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"cache-phia-trinh-duy\u1ec7t\"><span class=\"ez-toc-section\" id=\"Cache_phia_trinh_duyet\"><\/span>Cache ph\u00eda tr\u00ecnh duy\u1ec7t<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Trong khi g\u1eedi ph\u1ea3n h\u1ed3i HTTP, b\u1ea1n n\u00f3i v\u1edbi tr\u00ecnh duy\u1ec7t c\u00f3 n\u00ean l\u01b0u l\u1ea1i ph\u1ea3n h\u1ed3i hay kh\u00f4ng. M\u1ed9t khi n\u00f3 \u0111\u01b0\u1ee3c cache, v\u1edbi c\u00e1c y\u00eau c\u1ea7u ti\u1ebfp theo, c\u00e1c ph\u1ea3n h\u1ed3i n\u00e0y s\u1ebd l\u1ea5y t\u1eeb&nbsp;<a href=\"https:\/\/kiencang.net\/bo-nho-dem-trinh-duyet\/\" target=\"_blank\" rel=\"noreferrer noopener\">b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ee7a tr\u00ecnh duy\u1ec7t<\/a>. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 n\u00f3i cho tr\u00ecnh duy\u1ec7t bi\u1ebft c\u00e1c file cache n\u00ean \u0111\u01b0\u1ee3c l\u01b0u gi\u1eef trong th\u1eddi gian bao l\u00e2u.<\/p>\n\n\n\n<p>\u00dd t\u01b0\u1edfng t\u1ed1t l\u00e0 cache c\u00e1c file t\u0129nh nh\u01b0 l\u00e0 CSS, JS, \u1ea3nh, font trong tr\u00ecnh duy\u1ec7t n\u1ebfu ch\u00fang kh\u00f4ng \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt th\u01b0\u1eddng xuy\u00ean.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"v\u1eady-thi-toi-nen-s\u1eed-d\u1ee5ng-ki\u1ec3u-caching-nao\"><span class=\"ez-toc-section\" id=\"Vay_thi_toi_nen_su_dung_kieu_Caching_nao\"><\/span>V\u1eady th\u00ec t\u00f4i n\u00ean s\u1eed d\u1ee5ng ki\u1ec3u Caching n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Opcode caching \u0111\u01b0\u1ee3c b\u1eadt m\u1eb7c \u0111\u1ecbnh trong h\u1ea7u h\u1ebft c\u00e1c c\u00f4ng ty hosting ch\u1ea5t l\u01b0\u1ee3ng. Caching ph\u00eda tr\u00ecnh duy\u1ec7t v\u00e0 CDN caching r\u1ea5t d\u1ec5 \u0111\u1ec3 tri\u1ec3n khai v\u00e0 n\u00f3 \u0111\u01b0\u1ee3c khuy\u1ebfn kh\u00edch tr\u00ean m\u1ecdi ki\u1ec3u website.<\/p>\n\n\n\n<p>N\u1ebfu trang web c\u1ee7a b\u1ea1n kh\u00f4ng c\u00f3 nhi\u1ec1u n\u1ed9i dung \u0111\u1ed9ng, b\u1ea1n ch\u1eafc ch\u1eafn n\u00ean tri\u1ec3n khai caching to\u00e0n trang. Gia t\u1ed1c HTTP c\u0169ng c\u00f3 th\u1ec3 th\u00fac \u0111\u1ea9y t\u1ed1c \u0111\u1ed9 v\u00e0 x\u1eed l\u00fd \u0111\u01b0\u1ee3c l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp cao trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y.<\/p>\n\n\n\n<p>Nh\u01b0ng n\u1ebfu trang web c\u1ee7a b\u1ea1n c\u00f3 nhi\u1ec1u n\u1ed9i dung \u0111\u1ed9ng, caching to\u00e0n trang v\u00e0 gia t\u1ed1c th\u00f4ng qua&nbsp;<a href=\"https:\/\/kiencang.net\/tim-hieu-http-caching\/\" target=\"_blank\" rel=\"noreferrer noopener\">HTTP caching<\/a>&nbsp;(cache ph\u00eda tr\u00ecnh duy\u1ec7t) c\u00f3 th\u1ec3 kh\u00f4ng n\u00ean tri\u1ec3n khai tr\u00ean m\u1ecdi trang. Trong tr\u01b0\u1eddng h\u1ee3p \u0111\u00f3 t\u00f4i khuy\u1ebfn kh\u00edch s\u1eed d\u1ee5ng cache truy v\u1ea5n s\u1eed d\u1ee5ng ki\u1ec3u caching Object.<\/p>\n\n\n\n<p>Comment b\u00ean d\u01b0\u1edbi n\u1ebfu b\u1ea1n c\u00f3 b\u1ea5t c\u1ee9 c\u00e2u h\u1ecfi ho\u1eb7c ph\u1ea3n h\u1ed3i n\u00e0o nh\u00e9.<\/p>\n\n\n\n<p><em>(\u0110\u01b0\u1ee3c d\u1ecbch t\u1eeb b\u00e0i vi\u1ebft <a href=\"https:\/\/wpspeedmatters.com\/levels-of-caching-in-wordpress\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">6 Levels of Caching in WordPress You Need to Know<\/a> c\u1ee7a t\u00e1c gi\u1ea3 Gijo Varghese, website WPSpeedMatters)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>N\u1ebfu b\u1ea1n ham t\u00ecm hi\u1ec3u v\u1ec1&nbsp;t\u0103ng t\u1ed1c WordPress&nbsp;gi\u1ed1ng nh\u01b0 t\u00f4i, b\u1ea1n ch\u1eafc h\u1eb3n \u0111\u00e3 nghe n\u00f3i \u0111\u1ebfn thu\u1eadt ng\u1eef \u201ccaching\u201d. Nh\u01b0ng \u201ccaching \/ cache\u201d l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef chung chung. Trong WordPress c\u00f3 \u0111\u1ebfn 6 c\u1ea5p \u0111\u1ed9 caching. Cache ki\u1ec3u Opcode M\u00e3 PHP \u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng th\u00e2n thi\u1ec7n v\u1edbi con ng\u01b0\u1eddi. Nh\u01b0ng \u0111\u1ec3 m\u00e1y &hellip;<\/p>\n","protected":false},"author":1,"featured_media":24553,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[249],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>6 ki\u1ec3u cache trong WordPress m\u00e0 b\u1ea1n c\u1ea7n bi\u1ebft &#8226; Ki\u1ebfn c\u00e0ng<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kiencang.net\/6-cap-do-cache-wordpress\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"6 ki\u1ec3u cache trong WordPress m\u00e0 b\u1ea1n c\u1ea7n bi\u1ebft &#8226; Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"og:description\" content=\"N\u1ebfu b\u1ea1n ham t\u00ecm hi\u1ec3u v\u1ec1&nbsp;t\u0103ng t\u1ed1c WordPress&nbsp;gi\u1ed1ng nh\u01b0 t\u00f4i, b\u1ea1n ch\u1eafc h\u1eb3n \u0111\u00e3 nghe n\u00f3i \u0111\u1ebfn thu\u1eadt ng\u1eef \u201ccaching\u201d. Nh\u01b0ng \u201ccaching \/ cache\u201d l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef chung chung. Trong WordPress c\u00f3 \u0111\u1ebfn 6 c\u1ea5p \u0111\u1ed9 caching. Cache ki\u1ec3u Opcode M\u00e3 PHP \u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng th\u00e2n thi\u1ec7n v\u1edbi con ng\u01b0\u1eddi. 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