{"id":12377897,"date":"2026-03-19T14:26:18","date_gmt":"2026-03-19T06:26:18","guid":{"rendered":"https:\/\/www.likacloud.com\/knowledge\/%e7%bd%91%e7%ab%99%e6%80%a7%e8%83%bd%e6%98%af%e7%94%a8%e6%88%b7%e4%bd%93%e9%aa%8c%e4%b8%8e%e6%90%9c%e7%b4%a2%e5%bc%95%e6%93%8e%e6%8e%92%e5%90%8d%e7%9a%84%e5%9f%ba%e7%9f%b3%e3%80%82%e4%b8%80%e4%b8%aa\/"},"modified":"2026-06-04T12:42:08","modified_gmt":"2026-06-04T04:42:08","slug":"website-performance-user-experience-seo-wordpress-speed","status":"publish","type":"knowledge_post","link":"https:\/\/www.likacloud.com\/vi\/knowledge\/wordpress\/website-performance-user-experience-seo-wordpress-speed\/","title":{"rendered":"Hi\u1ec7u su\u1ea5t trang web l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng v\u00e0 x\u1ebfp h\u1ea1ng c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm. M\u1ed9t trang Wo"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Hi\u1ec7u su\u1ea5t trang web l\u00e0 n\u1ec1n t\u1ea3ng quan tr\u1ecdng cho tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng v\u00e0 th\u1ee9 h\u1ea1ng tr\u00ean c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm. M\u1ed9t trang web WordPress t\u1ea3i ch\u1eadm kh\u00f4ng ch\u1ec9 khi\u1ebfn ng\u01b0\u1eddi d\u00f9ng r\u1eddi b\u1ecf trang web m\u00e0 c\u00f2n \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn v\u1ecb tr\u00ed c\u1ee7a n\u00f3 trong k\u1ebft qu\u1ea3 t\u00ecm ki\u1ebfm. Do \u0111\u00f3, vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a WordPress m\u1ed9t c\u00e1ch c\u00f3 h\u1ec7 th\u1ed1ng l\u00e0 k\u1ef9 n\u0103ng m\u00e0 m\u1ecdi ch\u1ee7 s\u1edf h\u1eefu trang web \u0111\u1ec1u c\u1ea7n n\u1eafm v\u1eefng. Ch\u01b0\u01a1ng n\u00e0y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 c\u00e1c gi\u00e1 tr\u1ecb c\u1ed1t l\u00f5i v\u00e0 ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn t\u1ed5ng th\u1ec3 trong vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t, t\u1eeb \u0111\u00f3 \u0111\u1eb7t n\u1ec1n m\u00f3ng cho c\u00e1c b\u01b0\u1edbc th\u1ef1c hi\u1ec7n c\u1ee5 th\u1ec3 sau n\u00e0y.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Chi\u1ebfn l\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a c\u1ed1t l\u00f5i: T\u1ed1c \u0111\u1ed9, hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ed1i \u01b0u h\u00f3a WordPress l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh ph\u1ee9c t\u1ea1p, bao g\u1ed3m nhi\u1ec1u kh\u00eda c\u1ea1nh kh\u00e1c nhau, ch\u1ee7 y\u1ebfu t\u1eadp trung v\u00e0o vi\u1ec7c n\u00e2ng cao t\u1ed1c \u0111\u1ed9 trang web, t\u0103ng hi\u1ec7u su\u1ea5t m\u00e1y ch\u1ee7, \u0111\u1ea3m b\u1ea3o t\u00ednh an to\u00e0n v\u00e0 \u1ed5n \u0111\u1ecbnh, c\u0169ng nh\u01b0 c\u1ea3i thi\u1ec7n c\u1ea5u tr\u00fac n\u1ed9i dung. M\u1ed7i y\u1ebfu t\u1ed1 \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a trang web.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">N\u1ec1n t\u1ea3ng c\u1ee7a c\u00e1c t\u1ed1i \u01b0u h\u00f3a \u1edf c\u1ea5p \u0111\u1ed9 m\u00e1y ch\u1ee7<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u01b0\u1edbc \u0111\u1ea7u ti\u00ean trong qu\u00e1 tr\u00ecnh t\u1ed1i \u01b0u h\u00f3a b\u1eaft \u0111\u1ea7u t\u1eeb m\u00f4i tr\u01b0\u1eddng m\u00e1y ch\u1ee7. Vi\u1ec7c l\u1ef1a ch\u1ecdn m\u1ed9t m\u00e1y ch\u1ee7 c\u00f3 hi\u1ec7u su\u1ea5t cao v\u00e0 c\u1ea5u h\u00ecnh ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t. \u0110\u1ed1i v\u1edbi c\u00e1c trang web c\u00f3 quy m\u00f4 v\u1eeba v\u00e0 l\u1edbn, khuy\u1ebfn ngh\u1ecb s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 VPS (Virtual Private Server) ho\u1eb7c m\u00e1y ch\u1ee7 ri\u00eang, \u0111\u1ed3ng th\u1eddi c\u00e0i \u0111\u1eb7t c\u00e1c ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 web hi\u1ec7u qu\u1ea3 nh\u01b0 Nginx thay th\u1ebf cho Apache m\u1eb7c \u0111\u1ecbnh. Ngo\u00e0i ra, n\u00ean c\u00e0i \u0111\u1eb7t phi\u00ean b\u1ea3n PHP m\u1edbi nh\u1ea5t (ch\u1eb3ng h\u1ea1n PHP 8.x) v\u00e0 k\u00edch ho\u1ea1t t\u00ednh n\u0103ng OpCache.<br \/>\nN\u1eb1m trong th\u01b0 m\u1ee5c g\u1ed1c c\u1ee7a trang web (root directory of the website). <code data-no-auto-translation=\"\">.htaccess<\/code> Trong t\u1ec7p tin, b\u1ea1n c\u00f3 th\u1ec3 th\u00eam c\u00e1c quy t\u1eafc l\u01b0u tr\u1eef \u0111\u1ec7m (cache rules) c\u1ee7a tr\u00ecnh duy\u1ec7t \u0111\u1ec3 t\u1eadn d\u1ee5ng b\u1ed9 \u0111\u1ec7m c\u1ee5c b\u1ed9 c\u1ee7a ng\u01b0\u1eddi truy c\u1eadp, nh\u1eb1m gi\u1ea3m b\u1edbt s\u1ed1 l\u01b0\u1ee3ng y\u00eau c\u1ea7u truy c\u1eadp l\u1eb7p l\u1ea1i. V\u00ed d\u1ee5, \u0111o\u1ea1n m\u00e3 d\u01b0\u1edbi \u0111\u00e2y thi\u1ebft l\u1eadp th\u1eddi gian h\u1ebft h\u1ea1n c\u1ee7a b\u1ed9 \u0111\u1ec7m cho c\u00e1c t\u00e0i nguy<\/p>\n<!-- AUTO_INTERNAL_LINKS_START --><p>\u0110\u1ecdc th\u00eam <a href=\"https:\/\/www.likacloud.com\/ar\/knowledge\/wordpress\/wordpress-website-performance-optimization-complete-guide\/\">T\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t WordPress: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao<\/a>\u3002<\/p><!-- AUTO_INTERNAL_LINKS_END -->\n\n\n\n\n<pre class=\"wp-block-code\" data-no-auto-translation=\"\"><code data-no-auto-translation=\"\"># \u542f\u7528\u6d4f\u89c8\u5668\u7f13\u5b58\n&lt;IfModule mod_expires.c&gt;\nExpiresActive On\nExpiresByType image\/jpg &quot;access plus 1 year&quot;\nExpiresByType image\/jpeg &quot;access plus 1 year&quot;\nExpiresByType image\/gif &quot;access plus 1 year&quot;\nExpiresByType image\/png &quot;access plus 1 year&quot;\nExpiresByType text\/css &quot;access plus 1 month&quot;\nExpiresByType application\/javascript &quot;access plus 1 month&quot;\n&lt;\/IfModule&gt;<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ea3o tr\u00ec v\u00e0 d\u1ecdn d\u1eb9p h\u00e0ng ng\u00e0y cho c\u01a1 s\u1edf d\u1eef li\u1ec7u<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi trang web ho\u1ea1t \u0111\u1ed9ng, c\u01a1 s\u1edf d\u1eef li\u1ec7u s\u1ebd t\u00edch l\u0169y c\u00e1c phi\u00ean b\u1ea3n \u0111\u00e3 s\u1eeda \u0111\u1ed5i, b\u1ea3n th\u1ea3o, b\u00ecnh lu\u1eadn kh\u00f4ng c\u1ea7n thi\u1ebft v\u00e0 c\u00e1c d\u1eef li\u1ec7u th\u1eeba kh\u00e1c, l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh truy v\u1ea5n. Vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u1ecbnh k\u1ef3 l\u00e0 r\u1ea5t quan tr\u1ecdng. Ngo\u00e0i vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng (plugin), b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c l\u1ec7nh t\u1ed1i \u01b0u h\u00f3a th\u1ee7 c\u00f4ng th\u00f4ng qua phpMyAdmin, ho\u1eb7c th\u00eam \u0111o\u1ea1n m\u00e3 sau v\u00e0o m\u1ed9t ti\u1ec7n \u00edch t\u00f9y ch\u1ec9nh \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng d\u1ecdn d\u1eb9p d\u1eef li\u1ec7u trong n\u1ec1n.<br \/>\nTrong t\u1eadp tin <code data-no-auto-translation=\"\">functions.php<\/code> Th\u00eam v\u00e0o t\u1ec7p tin m\u1ed9t h\u00e0m \u0111\u1ec3 d\u1ecdn d\u1eb9p c\u00e1c phi\u00ean b\u1ea3n \u0111\u00e3 s\u1eeda \u0111\u1ed5i v\u00e0 t\u1ea1o b\u1ea3n th\u1ea3o t\u1ef1 \u0111\u1ed9ng, sau \u0111\u00f3 g\u1ecdi h\u00e0m \u0111\u00f3 th\u00f4ng qua menu qu\u1ea3n l\u00fd t\u00f9y ch\u1ec9nh \u2013 \u0111\u00e2y l\u00e0 m\u1ed9t c\u00e1ch th\u1ef1c hi\u1ec7n n\u00e2ng cao. \u0110i\u1ec1u quan tr\u1ecdng nh\u1ea5t l\u00e0 ph\u1ea3i s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c n\u00e0y. <code data-no-auto-translation=\"\">wp_delete_post_revision<\/code> V\u00e0 thao t\u00e1c tr\u1ef1c ti\u1ebfp <code data-no-auto-translation=\"\">$wpdb<\/code> \u0110\u1ed1i t\u01b0\u1ee3ng n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c l\u1ec7nh SQL nh\u1eb1m d\u1ecdn d\u1eb9p d\u1eef li\u1ec7u.<\/p>\n<!-- AUTO_SYNCED_PATTERN_INSERT_START -->\n\r\n<div class=\"flex justify-between items-center flex-col lg:flex-row xl:flex-col 2xl:flex-row gap-6 sm:gap-8 rounded-lg border border-gray-200 dark:border-gray-700 p-4 mb-8 lg:mb-10 sm:p-6 bg-white dark:bg-gray-750 shadow-md transition-colors duration-300\"\r\n     data-link=\"https:\/\/www.likacloud.com\/vi\/tolink\/ultahost-wordpress-hosting\/\">\r\n     \r\n  <div class=\"flex flex-col gap-3 gap-4 sm:gap-6 w-full\">\r\n    <strong class=\"text-2xl font-semibold text-gray-900 dark:text-gray-200\">\r\n      UltaHost \u2013 Nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 m\u00e1y ch\u1ee7 WordPress chuy\u00ean nghi\u1ec7p    <\/strong>\r\n    <div class=\"text-gray-600 dark:text-gray-300 word-word\">B\u1ea3o \u0111\u1ea3m ho\u00e0n ti\u1ec1n trong 30 ng\u00e0y, b\u0103ng th\u00f4ng v\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u kh\u00f4ng gi\u1edbi h\u1ea1n, b\u1ea3o v\u1ec7 DDoS mi\u1ec5n ph\u00ed, mua 3 n\u0103m \u01b0u \u0111\u00e3i 50%<\/div>\r\n  <\/div>\r\n\r\n  <div class=\"flex items-center flex-col md:flex-row lg:flex-col xl:flex-row 2xl:flex-col gap-6 shrink-0\">\r\n          <a href=\"https:\/\/www.likacloud.com\/vi\/tolink\/ultahost-wordpress-hosting\/\">\r\n                  <img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251227020448.webp\" alt=\"Logo UltaHost\" class=\"content-promotion-card-icon h-9 min-h-9 dark:hidden\" title=\"\">\r\n          <img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251229052118.webp\" alt=\"Logo UltaHost\" class=\"content-promotion-card-icon h-9 min-h-9 hidden dark:block\" title=\"\">\r\n              <\/a>\r\n    \r\n    <a href=\"https:\/\/www.likacloud.com\/vi\/tolink\/ultahost-wordpress-hosting\/\"\r\n       class=\"bg-blue-500 w-full md:w-auto lg:w-full xl:w-auto 2xl:w-full text-center !text-white dark:!text-gray-200 !px-5 !py-1.5 rounded-full hover:bg-blue-600 transition-colors\">\r\n       Truy c\u1eadp trang    <\/a>\r\n  <\/div>\r\n<\/div>\n<!-- AUTO_SYNCED_PATTERN_INSERT_END -->\n\n\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t front-end chuy\u00ean s\u00e2u<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng (frontend) l\u00e0 ph\u1ea7n m\u00e0 ng\u01b0\u1eddi d\u00f9ng ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp; t\u1ed1c \u0111\u1ed9 t\u1ea3i trang \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng. Vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a h\u00ecnh \u1ea3nh, script v\u00e0 c\u00e1c b\u1ea3ng \u0111\u1ecbnh d\u1ea1ng (style sheets) l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 then ch\u1ed1t trong qu\u00e1 tr\u00ecnh t\u1ed1i \u01b0u h\u00f3a giao di\u1ec7n ng\u01b0\u1eddi<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">X\u1eed l\u00fd hi\u1ec7n \u0111\u1ea1i h\u00f3a c\u00e1c t\u00e0i nguy\u00ean h\u00ecnh \u1ea3nh<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00ecnh \u1ea3nh th\u01b0\u1eddng l\u00e0 y\u1ebfu t\u1ed1 g\u00f3p ph\u1ea7n l\u1edbn nh\u1ea5t v\u00e0o vi\u1ec7c l\u00e0m t\u0103ng k\u00edch th\u01b0\u1edbc trang web. Tr\u01b0\u1edbc h\u1ebft, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c h\u00ecnh \u1ea3nh \u0111\u1ec1u \u0111\u00e3 \u0111\u01b0\u1ee3c n\u00e9n. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng nh\u01b0 ShortPixel ho\u1eb7c c\u00e1c c\u00f4ng c\u1ee5 tr\u1ef1c tuy\u1ebfn nh\u01b0 TinyPNG \u0111\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c n\u00e0y. Th\u1ee9 hai, h\u00e3y s\u1eed d\u1ee5ng c\u00e1c \u0111\u1ecbnh d\u1ea1ng h\u00ecnh \u1ea3nh hi\u1ec7n \u0111\u1ea1i nh\u01b0 WebP, v\u00ec ch\u00fang mang l\u1ea1i t\u1ef7 l\u1ec7 n\u00e9n t\u1ed1t h\u01a1n. B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch\u2026 <code data-no-auto-translation=\"\">.htaccess<\/code> Trong c\u1ea5u h\u00ecnh n\u00e0y, h\u00ecnh \u1ea3nh \u0111\u1ecbnh d\u1ea1ng WebP s\u1ebd \u0111\u01b0\u1ee3c t\u1ef1 \u0111\u1ed9ng hi\u1ec3n th\u1ecb tr\u00ean c\u00e1c tr\u00ecnh duy\u1ec7t h\u1ed7 tr\u1ee3 \u0111\u1ecbnh d\u1ea1ng WebP.<br \/>\nCu\u1ed1i c\u00f9ng, h\u00e3y tri\u1ec3n khai t\u00ednh n\u0103ng t\u1ea3i ch\u1eadm (Lazy Load) \u0111\u1ec3 nh\u1eefng h\u00ecnh \u1ea3nh n\u1eb1m ngo\u00e0i trang \u0111\u1ea7u ch\u1ec9 \u0111\u01b0\u1ee3c t\u1ea3i v\u00e0o khi ng\u01b0\u1eddi d\u00f9ng cu\u1ed9n trang. Nhi\u1ec1u plugin l\u01b0u tr\u1eef (cache plugins) \u0111\u00e3 t\u00edch h\u1ee3p s\u1eb5n t\u00ednh n\u0103ng n\u00e0y; b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 th\u00eam n\u00f3 b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p. <code data-no-auto-translation=\"\">loading=\"lazy\"<\/code> C\u00e1c thu\u1ed9c t\u00ednh \u0111\u01b0\u1ee3c tri\u1ec3n khai th\u1ee7 c\u00f4ng (t\u1ee9c l\u00e0 kh\u00f4ng s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 t\u1ef1 \u0111\u1ed9ng hay c\u00e1c l\u1edbp h\u1ed7 tr\u1ee3 s\u1eb5n trong m\u00e3 ngu\u1ed3n).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">H\u1ee3p nh\u1ea5t v\u00e0 t\u1ea3i tr\u1ec5 t\u1eadp l\u1ec7nh v\u00e0 b\u1ea3ng \u0111\u1ecbnh ki\u1ec3u<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng y\u00eau c\u1ea7u HTTP (requests) c\u00f3 th\u1ec3 gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 t\u1ed1c \u0111\u1ed9 t\u1ea3i trang web. M\u1ed9t bi\u1ec7n ph\u00e1p ph\u1ed5 bi\u1ebfn l\u00e0 k\u1ebft h\u1ee3p nhi\u1ec1u t\u1ec7p CSS v\u00e0 JavaScript th\u00e0nh m\u1ed9t v\u00e0i t\u1ec7p duy nh\u1ea5t. Tuy nhi\u00ean, c\u1ea7n l\u01b0u \u00fd r\u1eb1ng vi\u1ec7c n\u00e0y c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i c\u00e1c m\u1ed1i ph\u1ee5 thu\u1ed9c gi\u1eefa c\u00e1c t\u1ec7p \u0111\u00f3; v\u00ec v\u1eady, h\u00e3y ch\u1eafc ch\u1eafn ki\u1ec3m th\u1eed k\u1ef9 l\u01b0\u1ee1ng trong m\u00f4i tr\u01b0\u1eddng ph\u00e1t tri\u1ec3n tr\u01b0\u1edbc khi \u00e1p d\u1ee5ng thay \u0111\u1ed5i n\u00e0y.<br \/>\n\u0110\u1ed1i v\u1edbi c\u00e1c \u0111o\u1ea1n JavaScript kh\u00f4ng c\u1ea7n thi\u1ebft ph\u1ea3i \u0111\u01b0\u1ee3c t\u1ea3i ngay tr\u00ean trang \u0111\u1ea7u (kh\u00f4ng thu\u1ed9c nh\u00f3m c\u00e1c th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a trang), ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c script li\u00ean quan \u0111\u1ebfn h\u1ed9p b\u00ecnh lu\u1eadn ho\u1eb7c n\u00fat chia s\u1ebb tr\u00ean m\u1ea1ng x\u00e3 h\u1ed9i, b\u1ea1n n\u00ean s\u1eed d\u1ee5ng c\u00e1ch t\u1ea3i ch\u00fang theo ch\u1ebf \u0111\u1ed9 \u201cdefer\u201d ho\u1eb7c \u201casync\u201d. V\u00ed d\u1ee5, b\u1ea1n c\u00f3 th\u1ec3 th\u00eam \u0111o\u1ea1n m\u00e3 \u0111\u00f3 <code data-no-auto-translation=\"\">functions.php<\/code> C\u00f3 th\u1ec3 tr\u00ec ho\u00e3n t\u1ea5t c\u1ea3 c\u00e1c script kh\u00f4ng c\u1ea7n thi\u1ebft:<\/p>\n\n\n\n<pre class=\"wp-block-code\" data-no-auto-translation=\"\"><code data-no-auto-translation=\"\">function defer_parsing_of_js($url) {\n    if (is_admin()) return $url;\n    if (false === strpos($url, &#039;.js&#039;)) return $url;\n    if (strpos($url, &#039;jquery.min.js&#039;)) return $url; \/\/ \u4fdd\u7559 jQuery \u6b63\u5e38\u52a0\u8f7d\uff0c\u907f\u514d\u9519\u8bef\n    return str_replace(&#039; src&#039;, &#039; defer src&#039;, $url);\n}\nadd_filter(&#039;script_loader_tag&#039;, &#039;defer_parsing_of_js&#039;, 10);<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">S\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3 c\u01a1 ch\u1ebf \u0111\u1ec7m (cache)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L\u01b0u tr\u1eef \u0111\u1ec7m (cache) l\u00e0 c\u00e1ch hi\u1ec7u qu\u1ea3 nh\u1ea5t \u0111\u1ec3 n\u00e2ng cao t\u1ed1c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a WordPress m\u1ed9t c\u00e1ch ngay l\u1eadp t\u1ee9c. Nguy\u00ean l\u00fd c\u1ee7a n\u00f3 l\u00e0 l\u01b0u c\u00e1c trang \u0111\u01b0\u1ee3c t\u1ea1o ra m\u1ed9t c\u00e1ch \u0111\u1ed9ng d\u01b0\u1edbi d\u1ea1ng c\u00e1c t\u1ec7p tin t\u0129nh; khi c\u00f3 y\u00eau c\u1ea7u truy c\u1eadp, c\u00e1c t\u1ec7p tin t\u0129nh n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c truy\u1ec1n th\u1eb3ng ra, gi\u00fap tr\u00e1nh qu\u00e1 tr\u00ecnh th\u1ef1c thi PHP ph\u1ee9c t\u1ea1p v\u00e0 c\u00e1c thao t\u00e1c truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p>\n<!-- AUTO_INTERNAL_LINKS_START --><p>\u0110\u1ecdc th\u00eam <a href=\"https:\/\/www.likacloud.com\/ar\/knowledge\/wordpress\/wordpress-optimization-guide-speed-performance-2026\/\">H\u01b0\u1edbng d\u1eabn t\u1ed1i \u01b0u h\u00f3a WordPress to\u00e0n di\u1ec7n: Chi\u1ebfn l\u01b0\u1ee3c cu\u1ed1i c\u00f9ng \u0111\u1ec3 t\u0103ng t\u1ed1c \u0111\u1ed9 v\u00e0 hi\u1ec7u su\u1ea5t website<\/a>\u3002<\/p><!-- AUTO_INTERNAL_LINKS_END -->\n\n\n\n\n<h3 class=\"wp-block-heading\">Ngh\u1ec7 thu\u1eadt c\u1ea5u h\u00ecnh b\u1ed9 nh\u1edb \u0111\u1ec7m trang (Page Caching)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t plugin l\u01b0u tr\u1eef \u0111\u1ec7m (cache) tuy\u1ec7t v\u1eddi nh\u01b0 WP Rocket ho\u1eb7c W3 Total Cache cho ph\u00e9p b\u1ea1n c\u1ea5u h\u00ecnh vi\u1ec7c l\u01b0u tr\u1eef \u0111\u1ec7m trang web m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng. Nh\u1eefng plugin n\u00e0y s\u1ebd t\u1ea1o ra c\u00e1c t\u1ec7p HTML t\u0129nh v\u00e0 l\u01b0u ch\u00fang tr\u00ean m\u00e1y ch\u1ee7. Khi c\u1ea5u h\u00ecnh, h\u00e3y \u0111\u1ea3m b\u1ea3o thi\u1ebft l\u1eadp c\u00e1c quy t\u1eafc lo\u1ea1i tr\u1eeb (exclusion rules) \u0111\u1ec3 kh\u00f4ng \u00e1p d\u1ee5ng ch\u1ee9c n\u0103ng l\u01b0u tr\u1eef \u0111\u1ec7m \u0111\u1ed1i v\u1edbi nh\u1eefng n\u1ed9i dung \u0111\u1ed9ng, ch\u1eb3ng h\u1ea1n nh\u01b0 trang c\u1ee7a ng\u01b0\u1eddi d\u00f9ng \u0111\u00e3 \u0111\u0103ng nh\u1eadp ho\u1eb7c trang gi\u1ecf h\u00e0ng, nh\u1eb1m tr\u00e1nh hi\u1ec3n th\u1ecb th\u00f4ng b\u00e1o l\u1ed7i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Object caching v\u00e0 database query caching<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi nh\u1eefng trang web c\u00f3 t\u00ednh \u0111\u1ed9ng cao, vi\u1ec7c ch\u1ec9 d\u1ef1a v\u00e0o b\u1ed9 \u0111\u1ec7m trang (page caching) l\u00e0 kh\u00f4ng \u0111\u1ee7. B\u1ed9 \u0111\u1ec7m \u0111\u1ed1i t\u01b0\u1ee3ng (object caching) c\u00f3 th\u1ec3 l\u01b0u k\u1ebft qu\u1ea3 truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u trong b\u1ed9 nh\u1edb (ch\u1eb3ng h\u1ea1n nh\u01b0 Memcached ho\u1eb7c Redis), gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u00e1p l\u1ef1c l\u00ean c\u01a1 s\u1edf d\u1eef li\u1ec7u. Nhi\u1ec1u nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u00e3 t\u00edch h\u1ee3p d\u1ecbch v\u1ee5 n\u00e0y s\u1eb5n.<br \/>\n\u5728 <code data-no-auto-translation=\"\">wp-config.php<\/code> B\u1ea1n c\u00f3 th\u1ec3 th\u00eam \u0111o\u1ea1n m\u00e3 sau v\u00e0o t\u1ec7p \u0111\u1ec3 k\u00edch ho\u1ea1t t\u00ednh n\u0103ng l\u01b0u tr\u1eef d\u1eef li\u1ec7u trong b\u1ed9 nh\u1edb \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a Redis (h\u00e3y \u0111\u1ea3m b\u1ea3o \u0111\u00e3 c\u00e0i \u0111\u1eb7t v\u00e0 c\u1ea5u h\u00ecnh d\u1ecbch v\u1ee5 Redis tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n):<\/p>\n\n\n\n<pre class=\"wp-block-code\" data-no-auto-translation=\"\"><code data-no-auto-translation=\"\">define(&#039;WP_REDIS_HOST&#039;, &#039;127.0.0.1&#039;);\ndefine(&#039;WP_REDIS_PORT&#039;, 6379);\ndefine(&#039;WP_CACHE_KEY_SALT&#039;, &#039;your_unique_site_prefix_&#039;); \/\/ \u9632\u6b62\u591a\u7ad9\u70b9\u51b2\u7a81<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ed1i \u01b0u h\u00f3a m\u00e3 ngu\u1ed3n v\u00e0 c\u00e1c plugin li\u00ean quan \u0111\u1ebfn ch\u1ee7 \u0111\u1ec1 (theme plugins)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Code c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p v\u00e0 c\u00e1c plugin th\u1eeba th\u00e3i l\u00e0 nh\u1eefng \u201ck\u1ebb gi\u1ebft ch\u1ebft\u201d \u1ea9n gi\u1ea5u hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng. Vi\u1ec7c gi\u1eef cho m\u00e3 ngu\u1ed3n g\u1ecdn g\u00e0ng v\u00e0 l\u1ef1a ch\u1ecdn plugin m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh trong th\u1eddi gian d\u00e0i.<\/p>\n<!-- AUTO_SYNCED_PATTERN_INSERT_START -->\n\r\n<div class=\"flex justify-between items-center flex-col lg:flex-row xl:flex-col 2xl:flex-row gap-6 sm:gap-8 rounded-lg border border-gray-200 dark:border-gray-700 p-4 mb-8 lg:mb-10 sm:p-6 bg-white dark:bg-gray-750 shadow-md transition-colors duration-300\"\r\n     data-link=\"https:\/\/www.likacloud.com\/vi\/tolink\/hosting-shared-hosting\/\">\r\n     \r\n  <div class=\"flex flex-col gap-3 gap-4 sm:gap-6 w-full\">\r\n    <strong class=\"text-2xl font-semibold text-gray-900 dark:text-gray-200\">\r\n      Hosting.com - l\u01b0u tr\u1eef chia s\u1ebb    <\/strong>\r\n    <div class=\"text-gray-600 dark:text-gray-300 word-word\">Hi\u1ec7u n\u0103ng cao, \u0111\u01b0\u1ee3c trang b\u1ecb CPU AMD EPYC, l\u01b0u tr\u1eef SSD NVMe v\u00e0 LiteSpeed, h\u1ed7 tr\u1ee3 chuy\u00ean gia n\u1ed9i b\u1ed9 24 gi\u1edd\/ng\u00e0y, c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt ti\u00ean ti\u1ebfn bao g\u1ed3m SSL, ch\u1ed1ng brute force, ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i v\u00e0 b\u1ea3o v\u1ec7 DDoS, ti\u1ebft ki\u1ec7m t\u1edbi 73%.<\/div>\r\n  <\/div>\r\n\r\n  <div class=\"flex items-center flex-col md:flex-row lg:flex-col xl:flex-row 2xl:flex-col gap-6 shrink-0\">\r\n          <a href=\"https:\/\/www.likacloud.com\/vi\/tolink\/hosting-shared-hosting\/\">\r\n                  <img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/09\/20250901222940.svg\" alt=\"Logo c\u1ee7a Hosting.com\" class=\"content-promotion-card-icon h-9 min-h-9 dark:hidden\" title=\"\">\r\n          <img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251228220957.webp\" alt=\"Logo c\u1ee7a Hosting.com\" class=\"content-promotion-card-icon h-9 min-h-9 hidden dark:block\" title=\"\">\r\n              <\/a>\r\n    \r\n    <a href=\"https:\/\/www.likacloud.com\/vi\/tolink\/hosting-shared-hosting\/\"\r\n       class=\"bg-blue-500 w-full md:w-auto lg:w-full xl:w-auto 2xl:w-full text-center !text-white dark:!text-gray-200 !px-5 !py-1.5 rounded-full hover:bg-blue-600 transition-colors\">\r\n       Truy c\u1eadp trang    <\/a>\r\n  <\/div>\r\n<\/div>\n<!-- AUTO_SYNCED_PATTERN_INSERT_END -->\n\n\n\n\n\n<h3 class=\"wp-block-heading\">Chi\u1ebfn l\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a t\u1ec7p ch\u1ee9a h\u00e0m ch\u1ee7 \u0111\u1ec1<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ee7 \u0111\u1ec1 <code data-no-auto-translation=\"\">functions.php<\/code> C\u00e1c t\u1ec7p tin kh\u00f4ng n\u00ean tr\u1edf th\u00e0nh \u201cb\u00e3i r\u00e1c\u201d ch\u1ee9a \u0111\u1ea7y c\u00e1c \u0111o\u1ea1n m\u00e3 l\u1ec7nh kh\u00f4ng c\u1ea7n thi\u1ebft. Ch\u1ec9 n\u00ean gi\u1eef l\u1ea1i nh\u1eefng ch\u1ee9c n\u0103ng th\u1ef1c s\u1ef1 c\u1ea7n thi\u1ebft cho ch\u1ee7 \u0111\u1ec1 \u0111ang \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n; c\u00e1c ch\u1ee9c n\u0103ng t\u00f9y ch\u1ec9nh n\u00ean \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i th\u00e0nh c\u00e1c plugin ri\u00eang bi\u1ec7t ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c \u201csub-theme\u201d (th\u1ec3 lo\u1ea1i con) \u0111\u1ec3 qu\u1ea3n l\u00fd ch\u00fang m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng. H\u00e3y lo\u1ea1i b\u1ecf nh\u1eefng h\u00e0m th<br \/>\nV\u00ed d\u1ee5, vi\u1ec7c s\u1eed d\u1ee5ng h\u1ee3p l\u00fd c\u00e1c hook (c\u01a1 ch\u1ebf g\u1eafn k\u1ebft c\u00e1c h\u00e0m v\u1edbi nhau trong WordPress) c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n t\u0103ng c\u01b0\u1eddng t\u00ednh linh ho\u1ea1t v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a website c\u1ee7a m\u00ecnh. <code data-no-auto-translation=\"\">wp_enqueue_scripts<\/code> \u0110\u1ec3 t\u1ea3i c\u00e1c t\u00e0i nguy\u00ean m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c, b\u1ea1n kh\u00f4ng n\u00ean vi\u1ebft ch\u00fang tr\u1ef1c ti\u1ebfp v\u00e0o t\u1ec7p template, m\u00e0 n\u00ean s\u1eed d\u1ee5ng c\u00e1c c\u01a1 ch\u1ebf t\u1ea3i t\u00e0i nguy\u00ean ph\u00f9 h\u1ee3p trong \u1ee9ng d\u1ee5ng. <code data-no-auto-translation=\"\"><\/code> \u6216 <code data-no-auto-translation=\"\"><\/code> Th\u1ebb.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ti\u00eau chu\u1ea9n ki\u1ec3m to\u00e1n v\u00e0 l\u1ef1a ch\u1ecdn plugin<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y th\u1ef1c hi\u1ec7n ki\u1ec3m to\u00e1n \u0111\u1ecbnh k\u1ef3 c\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng (plugin) \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t, v\u00e0 t\u1eaft ho\u1eb7c x\u00f3a b\u1ea5t k\u1ef3 ti\u1ec7n \u00edch n\u00e0o kh\u00f4ng c\u00f2n c\u1ea7n thi\u1ebft. Khi ch\u1ecdn mua ti\u1ec7n \u00edch m\u1edbi, h\u00e3y ch\u00fa \u00fd \u0111\u1ebfn t\u1ea7n su\u1ea5t c\u1eadp nh\u1eadt, t\u00ednh t\u01b0\u01a1ng th\u00edch, \u0111\u00e1nh gi\u00e1 c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, c\u0169ng nh\u01b0 \u1ea3nh h\u01b0\u1edfng c\u1ee7a ch\u00fang \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 trang web (c\u00f3 th\u1ec3 ki\u1ec3m tra b\u1eb1ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 GTmetrix tr\u01b0\u1edbc v\u00e0 sau khi c\u00e0i \u0111\u1eb7t). M\u1ed9t ti\u1ec7n \u00edch m\u1edf r\u1ed9ng c\u00f3 nhi\u1ec1u t\u00ednh n\u0103ng nh\u01b0ng \u0111\u01b0\u1ee3c vi\u1ebft k\u00e9m c\u00f3 th\u1ec3 g\u00e2y ra nh\u1eefng v\u1ea5n \u0111\u1ec1 v\u1ec1 hi\u1ec7u n\u0103ng nghi\u00eam tr\u1ecdng h\u01a1n so v\u1edbi m\u01b0\u1eddi ti\u1ec7n \u00edch nh\u1eb9 nh\u00e0ng h\u01a1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u00f3m l\u1ea1i<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a WordPress l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh li\u00ean t\u1ee5c k\u00e9o d\u00e0i su\u1ed1t v\u00f2ng \u0111\u1eddi c\u1ee7a trang web, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t c\u00f4ng vi\u1ec7c ch\u1ec9 c\u1ea7n th\u1ef1c hi\u1ec7n m\u1ed9t l\u1ea7n l\u00e0 xong. N\u00f3 \u0111\u00f2i h\u1ecfi s\u1ef1 ph\u1ed1i h\u1ee3p t\u1eeb nhi\u1ec1u kh\u00eda c\u1ea1nh nh\u01b0 m\u00f4i tr\u01b0\u1eddng m\u00e1y ch\u1ee7, c\u01a1 s\u1edf d\u1eef li\u1ec7u, t\u00e0i nguy\u00ean ph\u00eda tr\u01b0\u1edbc (frontend), chi\u1ebfn l\u01b0\u1ee3c l\u01b0u tr\u1eef \u0111\u1ec7m (cache), v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng m\u00e3 ngu\u1ed3n. B\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng c\u00e1c chi\u1ebfn l\u01b0\u1ee3c \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp trong b\u00e0i vi\u1ebft n\u00e0y \u2013 ch\u1ecdn m\u00e1y ch\u1ee7 c\u00f3 hi\u1ec7u su\u1ea5t cao, n\u00e9n v\u00e0 t\u1ea3i \u1ea3nh theo y\u00eau c\u1ea7u (lazy loading), g\u1ed9p c\u00e1c t\u1eadp l\u1ec7nh l\u1ea1i v\u1edbi nhau, c\u1ea5u h\u00ecnh h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef \u0111\u1ec7m \u0111a c\u1ea5p, v\u00e0 gi\u1ea3m b\u1edbt \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a m\u00e3 ngu\u1ed3n c\u00e1c plugin \u2013 trang web c\u1ee7a b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 v\u1ec1 hi\u1ec7u n\u0103ng, t\u1eeb \u0111\u00f3 mang l\u1ea1i tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng t\u1ed1t h\u01a1n, t\u1ef7 l\u1ec7 chuy\u1ec3n \u0111\u1ed5i cao h\u01a1n, v\u00e0 v\u1ecb tr\u00ed x\u1ebfp h\u1ea1ng t\u1ed1t h\u01a1n tr\u00ean c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm. H\u00e3y nh\u1edb r\u1eb1ng, vi\u1ec7c theo d\u00f5i th\u01b0\u1eddng xuy\u00ean c\u00e1c ch\u1ec9 s\u1ed1 hi\u1ec7u n\u0103ng (ch\u1eb3ng h\u1ea1n th\u00f4ng qua PageSpeed Insights) v\u00e0 c\u1eadp nh\u1eadt c\u00e1c thi\u1ebft l\u1eadp li\u00ean quan l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 duy tr\u00ec nh\u1eefng k\u1ebft qu\u1ea3 t\u1ed1i \u01b0u h\u00f3a \u0111\u00f3.<\/p>\n<!-- AUTO_INTERNAL_LINKS_START --><p>\u0110\u1ecdc th\u00eam <a href=\"https:\/\/www.likacloud.com\/ar\/knowledge\/cdn\/cdn-acceleration-principles-how-to-choose-and-configure-best-content-delivery-network\/\">Gi\u1ea3i th\u00edch to\u00e0n di\u1ec7n nguy\u00ean l\u00fd t\u0103ng t\u1ed1c CDN: C\u00e1ch ch\u1ecdn v\u00e0 c\u1ea5u h\u00ecnh m\u1ea1ng ph\u00e2n ph\u1ed1i n\u1ed9i dung t\u1ed1i \u01b0u<\/a>\u3002<\/p><!-- AUTO_INTERNAL_LINKS_END -->\n\n\n\n\n<h2 class=\"wp-block-heading\">FAQ \u5e38\u89c1\u95ee\u9898<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Sau khi k\u00edch ho\u1ea1t b\u1ed9 nh\u1edb \u0111\u1ec7m, n\u1ebfu c\u1eadp nh\u1eadt trang web kh\u00f4ng hi\u1ec3n th\u1ecb th\u00ec ph\u1ea3i l\u00e0m sao?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y l\u00e0 do b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ee7a tr\u00ecnh duy\u1ec7t ho\u1eb7c b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ee7a d\u1ecbch v\u1ee5 CDN (Content Delivery Network) g\u00e2y ra. Tr\u01b0\u1edbc ti\u00ean, h\u00e3y th\u1eed l\u00e0m m\u1edbi tr\u00ecnh duy\u1ec7t m\u1ed9t c\u00e1ch th\u1ee7 c\u00f4ng (Ctrl+F5). N\u1ebfu v\u1ea5n \u0111\u1ec1 v\u1eabn c\u00f2n t\u1ed3n t\u1ea1i, h\u00e3y \u0111\u0103ng nh\u1eadp v\u00e0o console c\u1ee7a ti\u1ec7n \u00edch l\u01b0u tr\u1eef b\u1ed9 nh\u1edb \u0111\u1ec7m ho\u1eb7c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 CDN v\u00e0 x\u00f3a t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9 nh\u1edb \u0111\u1ec7m m\u1ed9t c\u00e1ch th\u1ee7 c\u00f4ng. H\u1ea7u h\u1ebft c\u00e1c ti\u1ec7n \u00edch l\u01b0u tr\u1eef b\u1ed9 nh\u1edb \u0111\u1ec7m c\u0169ng c\u00f3 ch\u1ee9c n\u0103ng t\u1ef1 \u0111\u1ed9ng x\u00f3a b\u1ed9 nh\u1edb \u0111\u1ec7m li\u00ean quan khi b\u00e0i vi\u1ebft \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt; vui l\u00f2ng \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u1ee9c n\u0103ng n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00f3 nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p n\u00e0o \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt c\u01a1 s\u1edf d\u1eef li\u1ec7u?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1ch an to\u00e0n nh\u1ea5t l\u00e0 s\u1eed d\u1ee5ng c\u00e1c plugin \u0111\u00e1ng tin c\u1eady nh\u01b0 WP-Optimize ho\u1eb7c Advanced Database Cleaner. Tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 thao t\u00e1c n\u00e0o, h\u00e3y \u0111\u1ea3m b\u1ea3o sao l\u01b0u to\u00e0n b\u1ed9 c\u01a1 s\u1edf d\u1eef li\u1ec7u th\u00f4ng qua plugin ho\u1eb7c b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n m\u00e1y ch\u1ee7. H\u00e3y tr\u00e1nh s\u1eed d\u1ee5ng c\u00e1c script \u201ct\u1ed1i \u01b0u h\u00f3a t\u1ef1 \u0111\u1ed9ng\u201d c\u00f3 ngu\u1ed3n g\u1ed1c kh\u00f4ng r\u00f5 r\u00e0ng, v\u00ec ch\u00fang c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c x\u00f3a d\u1eef li\u1ec7u kh\u00f4ng an to\u00e0n.<\/p>\n<!-- AUTO_SYNCED_PATTERN_INSERT_START -->\n\r\n<div class=\"flex justify-between items-center flex-col lg:flex-row xl:flex-col 2xl:flex-row gap-6 sm:gap-8 rounded-lg border border-gray-200 dark:border-gray-700 p-4 mb-8 lg:mb-10 sm:p-6 bg-white dark:bg-gray-750 shadow-md transition-colors duration-300\"\r\n     data-link=\"https:\/\/www.likacloud.com\/vi\/tolink\/interserver-webhosting\/\">\r\n     \r\n  <div class=\"flex flex-col gap-3 gap-4 sm:gap-6 w-full\">\r\n    <strong class=\"text-2xl font-semibold text-gray-900 dark:text-gray-200\">\r\n      M\u00e1y ch\u1ee7 chia s\u1ebb c\u1ee7a InterServer    <\/strong>\r\n    <div class=\"text-gray-600 dark:text-gray-300 word-word\">L\u01b0u tr\u1eef chia s\u1ebb v\u1edbi m\u1ee9c ph\u00ed $2,50 USD m\u1ed7i th\u00e1ng, gi\u1ea3m gi\u00e1 $0,1 USD trong th\u00e1ng \u0111\u1ea7u ti\u00ean, m\u00e3 gi\u1ea3m gi\u00e1 tryinterserver, v\u1edbi 461 \u1ee9ng d\u1ee5ng \u0111\u00e1m m\u00e2y v\u00e0 c\u00e0i \u0111\u1eb7t ch\u1ec9 b\u1eb1ng m\u1ed9t c\u00fa nh\u1ea5p chu\u1ed9t.<\/div>\r\n  <\/div>\r\n\r\n  <div class=\"flex items-center flex-col md:flex-row lg:flex-col xl:flex-row 2xl:flex-col gap-6 shrink-0\">\r\n          <a href=\"https:\/\/www.likacloud.com\/vi\/tolink\/interserver-webhosting\/\">\r\n                  <img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251228045033.svg\" alt=\"Logo c\u1ee7a InterServer\" class=\"content-promotion-card-icon h-9 min-h-9 dark:hidden\" title=\"\">\r\n          <img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251229054830.webp\" alt=\"Logo c\u1ee7a InterServer\" class=\"content-promotion-card-icon h-9 min-h-9 hidden dark:block\" title=\"\">\r\n              <\/a>\r\n    \r\n    <a href=\"https:\/\/www.likacloud.com\/vi\/tolink\/interserver-webhosting\/\"\r\n       class=\"bg-blue-500 w-full md:w-auto lg:w-full xl:w-auto 2xl:w-full text-center !text-white dark:!text-gray-200 !px-5 !py-1.5 rounded-full hover:bg-blue-600 transition-colors\">\r\n       Truy c\u1eadp trang    <\/a>\r\n  <\/div>\r\n<\/div>\n<!-- AUTO_SYNCED_PATTERN_INSERT_END -->\n\n\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ea1i sao d\u00f9 t\u1ea5t c\u1ea3 h\u00ecnh \u1ea3nh tr\u00ean trang web \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a, t\u1ed1c \u0111\u1ed9 truy c\u1eadp v\u1eabn r\u1ea5t ch\u1eadm?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00ecnh \u1ea3nh ch\u1ec9 l\u00e0 m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 trang web. N\u1ebfu t\u1ed1c \u0111\u1ed9 v\u1eabn ch\u01b0a \u0111\u1ea1t y\u00eau c\u1ea7u sau khi b\u1ea1n \u0111\u00e3 t\u1ed1i \u01b0u h\u00f3a h\u00ecnh \u1ea3nh, h\u00e3y ki\u1ec3m tra c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c: Th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ee7a m\u00e1y ch\u1ee7 (TTFB \u2013 Time To First Byte) c\u00f3 qu\u00e1 d\u00e0i kh\u00f4ng? C\u00f3 ph\u1ea3i trang web \u0111ang t\u1ea3i qu\u00e1 nhi\u1ec1u t\u1ec7p JavaScript\/CSS ho\u1eb7c nh\u1eefng t\u1ec7p n\u00e0y ch\u01b0a \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a kh\u00f4ng? B\u1ea1n c\u00f3 \u0111ang s\u1eed d\u1ee5ng c\u00e1c d\u1ecbch v\u1ee5 b\u00ean th\u1ee9 ba ch\u1ea1y ch\u1eadm (ch\u1eb3ng h\u1ea1n nh\u01b0 m\u1ed9t s\u1ed1 ph\u00f4ng ch\u1eef ho\u1eb7c c\u00f4ng c\u1ee5 ph\u00e2n t\u00edch) kh\u00f4ng? \u0110\u01b0\u1ee3c khuy\u00ean n\u00ean s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 Lighthouse \u0111\u1ec3 th\u1ef1c hi\u1ec7n m\u1ed9t cu\u1ed9c ki\u1ec3m tra to\u00e0n di\u1ec7n; c\u00f4ng c\u1ee5 n\u00e0y s\u1ebd \u0111\u01b0a ra nh\u1eefng g\u1ee3i \u00fd c\u1ee5 th\u1ec3 v\u1ec1 c\u00e1ch c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 trang web.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa b\u1ed9 nh\u1edb \u0111\u1ec7m \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 b\u1ed9 nh\u1edb \u0111\u1ec7m trang l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">L\u01b0u tr\u1eef \u0111\u1ec7m trang (page caching) l\u00e0 vi\u1ec7c l\u01b0u to\u00e0n b\u1ed9 n\u1ed9i dung HTML cu\u1ed1i c\u00f9ng c\u1ee7a m\u1ed9t trang web d\u01b0\u1edbi d\u1ea1ng t\u1ec7p tin t\u0129nh, ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng trang m\u00e0 n\u1ed9i dung kh\u00f4ng th\u01b0\u1eddng xuy\u00ean thay \u0111\u1ed5i. Trong khi \u0111\u00f3, l\u01b0u tr\u1eef \u0111\u1ec7m \u0111\u1ed1i t\u01b0\u1ee3ng (object caching) l\u00e0 vi\u1ec7c l\u01b0u k\u1ebft qu\u1ea3 truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u, k\u1ebft qu\u1ea3 y\u00eau c\u1ea7u t\u1eeb API t\u1eeb xa, ho\u1eb7c c\u00e1c \u201c\u0111\u1ed1i t\u01b0\u1ee3ng\u201d kh\u00e1c trong b\u1ed9 nh\u1edb, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho nh\u1eefng ph\u1ea7n c\u1ee7a trang web c\u00f3 nhi\u1ec1u truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u l\u1eb7p \u0111i l\u1eb7p l\u1ea1i (ch\u1eb3ng h\u1ea1n nh\u01b0 th\u00f4ng tin phi\u00ean ng\u01b0\u1eddi d\u00f9ng, k\u1ebft qu\u1ea3 truy v\u1ea5n ph\u1ee9c t\u1ea1p). C\u1ea3 hai c\u00f4ng ngh\u1ec7 n\u00e0y c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i song song v\u1edbi nhau; l\u01b0u tr\u1eef \u0111\u1ec7m \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 th\u1ec3 mang l\u1ea1i hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n cho nh\u1eefng trang web ch\u1ee9a nhi\u1ec1u n\u1ed9i dung \u0111\u1ed9ng.<\/p>","protected":false},"excerpt":{"rendered":"<p>B\u00e0i vi\u1ebft n\u00e0y tr\u00ecnh b\u00e0y m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng v\u1ec1 t\u1ea7m quan tr\u1ecdng v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ed5ng th\u1ec3 \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t trang web WordPress. N\u1ed9i dung ch\u00ednh bao g\u1ed3m vi\u1ec7c l\u1ef1a ch\u1ecdn v\u00e0 c\u1ea5u h\u00ecnh m\u00f4i tr\u01b0\u1eddng m\u00e1y ch\u1ee7, vi\u1ec7c b\u1ea3o tr\u00ec, d\u1ecdn d\u1eb9p c\u01a1 s\u1edf d\u1eef li\u1ec7u th\u01b0\u1eddng xuy\u00ean, c\u0169ng nh\u01b0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ed1i \u01b0u h\u00f3a s\u00e2u r\u1ed9ng \u0111\u1ed1i v\u1edbi h\u00ecnh \u1ea3nh, script v\u00e0 b\u1ea3ng \u0111\u1ecbnh d\u1ea1ng (stylesheet) \u1edf ph\u00eda tr\u01b0\u1edbc (frontend). 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