{"id":14478,"date":"2020-06-25T16:53:14","date_gmt":"2020-06-25T09:53:14","guid":{"rendered":"https:\/\/speed.family\/?p=14478"},"modified":"2020-06-25T16:53:14","modified_gmt":"2020-06-25T09:53:14","slug":"page-optimization-litespeed-cache","status":"publish","type":"post","link":"https:\/\/kiencang.net\/page-optimization-litespeed-cache\/","title":{"rendered":"T\u00f9y ch\u1ec9nh Page Optimization trong plugin LiteSpeed Cache [t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn ch\u00ednh th\u1ee9c]"},"content":{"rendered":"\n<p>V\u00e0i l\u1eddi c\u1ee7a ng\u01b0\u1eddi d\u1ecbch: Trong b\u00e0i vi\u1ebft n\u00e0y t\u00f4i tham kh\u1ea3o tr\u1ef1c ti\u1ebfp <a rel=\"noreferrer noopener\" href=\"https:\/\/docs.litespeedtech.com\/lscache\/lscwp\/pageopt\/\" target=\"_blank\">t\u00e0i li\u1ec7u ch\u00ednh th\u1ee9c c\u1ee7a LiteSpeed<\/a> d\u00e0nh cho <a href=\"https:\/\/kiencang.net\/litespeed-plugin-cache-tot-nhat\/\" target=\"_blank\" rel=\"noreferrer noopener\">LiteSpeed Cache phi\u00ean b\u1ea3n WordPress<\/a>. B\u00ean c\u1ea1nh b\u00e0i vi\u1ebft <a href=\"https:\/\/kiencang.net\/hd-plugin-litespeed-cache-p1\/\" target=\"_blank\" rel=\"noreferrer noopener\">h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng LiteSpeed Cache r\u1ea5t hay c\u1ee7a Johnny<\/a> \u0111\u00e3 \u0111\u01b0\u1ee3c d\u1ecbch sang ti\u1ebfng Vi\u1ec7t, t\u00f4i hy v\u1ecdng b\u00e0i n\u00e0y s\u1ebd b\u1ed5 sung th\u00eam ngu\u1ed3n th\u00f4ng tin tham kh\u1ea3o h\u1eefu \u00edch cho c\u00e1c b\u1ea1n. <\/p>\n\n\n<p>T\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn th\u00ec ng\u00f4n ng\u1eef kh\u00e1 c\u1ee9ng kh\u00f4ng \u0111\u01b0\u1ee3c bay b\u1ed5ng, nh\u01b0ng c\u00e1i hay c\u1ee7a n\u00f3 l\u00e0 \u0111i th\u1eb3ng v\u00e0o v\u1ea5n \u0111\u1ec1 v\u00e0 c\u00f3 nhi\u1ec1u chi ti\u1ebft k\u1ef9 thu\u1eadt m\u00e0 c\u00e1c b\u00e0i vi\u1ebft kh\u00e1c kh\u00f4ng c\u00f3 \u0111\u01b0\u1ee3c. Mu\u1ed1n \u0111i s\u00e2u th\u00ec ch\u00fang ta c\u1ea7n \u0111\u1ecdc th\u00f4i.<\/p>\n\n\n<p>Ch\u00fac vui.<\/p>\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-6577d6d7f080e\" ><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-6577d6d7f080e\"  type=\"checkbox\" id=\"item-6577d6d7f080e\"><\/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\/page-optimization-litespeed-cache\/#Tab_CSS_Settings_cac_cai_dat_danh_cho_CSS\" title=\"Tab CSS Settings (c\u00e1c c\u00e0i \u0111\u1eb7t d\u00e0nh cho CSS)\">Tab CSS Settings (c\u00e1c c\u00e0i \u0111\u1eb7t d\u00e0nh cho CSS)<\/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\/page-optimization-litespeed-cache\/#Tab_JS_Settings_cac_cai_dat_danh_cho_JS\" title=\"Tab JS Settings (c\u00e1c c\u00e0i \u0111\u1eb7t d\u00e0nh cho JS)\">Tab JS Settings (c\u00e1c c\u00e0i \u0111\u1eb7t d\u00e0nh cho JS)<\/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\/page-optimization-litespeed-cache\/#Tab_Optimization_Settings_cac_cai_dat_toi_uu_hoa\" title=\"Tab Optimization Settings (c\u00e1c c\u00e0i \u0111\u1eb7t t\u1ed1i \u01b0u h\u00f3a)\">Tab Optimization Settings (c\u00e1c c\u00e0i \u0111\u1eb7t t\u1ed1i \u01b0u h\u00f3a)<\/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\/page-optimization-litespeed-cache\/#Tab_Media_Settings_cac_cai_dat_cho_tai_nguyen_da_phuong_tien\" title=\"Tab Media Settings (c\u00e1c c\u00e0i \u0111\u1eb7t cho t\u00e0i nguy\u00ean \u0111a ph\u01b0\u01a1ng ti\u1ec7n)\">Tab Media Settings (c\u00e1c c\u00e0i \u0111\u1eb7t cho t\u00e0i nguy\u00ean \u0111a ph\u01b0\u01a1ng ti\u1ec7n)<\/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\/page-optimization-litespeed-cache\/#Tab_Media_Excludes_loai_tru_cac_tai_nguyen_da_phuong_tien\" title=\"Tab Media Excludes (lo\u1ea1i tr\u1eeb c\u00e1c t\u00e0i nguy\u00ean \u0111a ph\u01b0\u01a1ng ti\u1ec7n)\">Tab Media Excludes (lo\u1ea1i tr\u1eeb c\u00e1c t\u00e0i nguy\u00ean \u0111a ph\u01b0\u01a1ng ti\u1ec7n)<\/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\/page-optimization-litespeed-cache\/#Tab_Discussion_Settings_cai_dat_phan_thao_luan\" title=\"Tab Discussion Settings (c\u00e0i \u0111\u1eb7t ph\u1ea7n th\u1ea3o lu\u1eadn)\">Tab Discussion Settings (c\u00e0i \u0111\u1eb7t ph\u1ea7n th\u1ea3o lu\u1eadn)<\/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\/page-optimization-litespeed-cache\/#Tab_Tuning_Settings_dieu_chinh_cac_cai_dat\" title=\"Tab Tuning Settings (\u0111i\u1ec1u ch\u1ec9nh c\u00e1c c\u00e0i \u0111\u1eb7t)\">Tab Tuning Settings (\u0111i\u1ec1u ch\u1ec9nh c\u00e1c c\u00e0i \u0111\u1eb7t)<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tab_CSS_Settings_cac_cai_dat_danh_cho_CSS\"><\/span>Tab CSS Settings (c\u00e1c c\u00e0i \u0111\u1eb7t d\u00e0nh cho CSS)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-1css-766x1024.png\" alt=\"c\u00e1c c\u00e0i \u0111\u1eb7t d\u00e0nh cho CSS\" class=\"wp-image-14482\"\/><\/figure><\/div>\n\n\n<p><strong>CSS Minify<\/strong> (r\u00fat g\u1ecdn CSS)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>C\u00e1c k\u00fd t\u1ef1 tr\u1eafng (white space) d\u01b0 th\u1eeba, c\u00e1c d\u00f2ng k\u00fd t\u1ef1 m\u1edbi (new line), v\u00e0 c\u00e1c ch\u00fa th\u00edch (comments) s\u1ebd b\u1ecb lo\u1ea1i b\u1ecf kh\u1ecfi t\u1ea5t c\u1ea3 c\u00e1c file CSS n\u1ebfu t\u00f9y ch\u1ecdn n\u00e0y \u0111\u01b0\u1ee3c b\u1eadt (ON).<\/p>\n\n\n<p><strong>CSS Combine<\/strong> (k\u1ebft h\u1ee3p CSS)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>T\u1ea5t c\u1ea3 file CSS ri\u00eang l\u1ebb s\u1ebd \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p (combined) th\u00e0nh file CSS duy nh\u1ea5t.<\/p>\n\n\n<p><strong>Unique CSS<\/strong> (CSS duy nh\u1ea5t)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>B\u1eadt t\u00f9y ch\u1ecdn n\u00e0y \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c file CSS k\u1ebft h\u1ee3p duy nh\u1ea5t cho <em>m\u1ed7i<\/em> URI, b\u1ea5t k\u1ec3 gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c l\u01b0u trong <strong>Max Combined File Size<\/strong> l\u00e0 bao nhi\u00eau (k\u00edch c\u1ee1 t\u1ed1i \u0111a c\u1ee7a file k\u1ebft h\u1ee3p).<\/p>\n\n\n<p>T\u00f9y ch\u1ecdn n\u00e0y s\u1ebd h\u1eefu \u00edch nh\u1ea5t khi k\u1ebft h\u1ee3p v\u1edbi d\u1ecbch v\u1ee5 m\u1edbi <strong>Unused CSS<\/strong> (<a rel=\"noreferrer noopener\" href=\"https:\/\/kiencang.net\/loai-bo-css-khong-su-dung\/\" target=\"_blank\">css kh\u00f4ng s\u1eed d\u1ee5ng<\/a>) s\u1ebd \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt s\u1edbm trong b\u1ea3n ph\u00e1t h\u00e0nh s\u1eafp t\u1edbi.<\/p>\n\n\n<p><strong>CSS HTTP\/2 PUSH<\/strong><\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>CSS s\u1ebd \u0111\u01b0\u1edbc g\u1eedi \u0111\u1ebfn tr\u00ecnh duy\u1ec7t tr\u01b0\u1edbc khi n\u00f3 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u.<\/p>\n\n\n<p><strong>Load CSS Asynchronously<\/strong> (t\u1ea3i CSS kh\u00f4ng \u0111\u1ed3ng b\u1ed9)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>T\u00f9y ch\u1ecdn n\u00e0y m\u1eb7c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111\u1ec3 l\u00e0 <em>OFF<\/em>. Khi \u0111\u1ec3 OFF, trang web s\u1ebd \u0111\u01b0\u1ee3c t\u1ea3i theo c\u00e1ch th\u00f4ng th\u01b0\u1eddng, khi tr\u00ecnh duy\u1ec7t t\u1ea3i CSS t\u1eeb header c\u1ee7a HTML tr\u01b0\u1edbc khi ti\u1ebfp t\u1ee5c hi\u1ec3n th\u1ecb n\u1ed9i dung trong HTML body. (xem th\u00eam: <a href=\"https:\/\/kiencang.net\/cach-trang-web-tai-va-hien-thi\/\" target=\"_blank\" rel=\"noreferrer noopener\">c\u00e1ch tr\u00ecnh duy\u1ec7t t\u1ea3i trang web v\u1ec1<\/a>).<\/p>\n\n\n<p>Khi t\u00f9y ch\u1ecdn n\u00e0y \u0111\u01b0\u1ee3c b\u1eadt (ON) th\u00ec CSS v\u00e0 HTML s\u1ebd \u0111\u01b0\u1ee3c t\u1ea3i v\u1ec1 c\u00f9ng m\u1ed9t l\u00fac (same time). Trang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea3i nhanh h\u01a1n theo c\u00e1ch \u0111\u00f3, nh\u01b0ng n\u00f3 c\u00f3 th\u1ec3 l\u00e0m cho l\u01b0\u1ee3t t\u1ea3i \u0111\u1ea7u ti\u00ean (initially load) kh\u00f4ng c\u00f3 \u0111\u1ecbnh d\u1ea1ng (without formatting). \u0110\u1ec3 tr\u00e1nh phi\u1ec1n ph\u1ee9c n\u00e0y b\u1ea1n s\u1ebd mu\u1ed1n t\u1ea1o <a href=\"https:\/\/kiencang.net\/critical-css-wordpress\/\" target=\"_blank\" rel=\"noreferrer noopener\">Critical CSS<\/a> v\u00e0 t\u1ea3i n\u00f3 v\u1ec1 tr\u01b0\u1edbc. Ch\u00fang ta s\u1ebd n\u00f3i v\u1ec1 t\u00f9y ch\u1ecdn n\u00e0y ngay sau \u0111\u00e2y.<\/p>\n\n\n<p><strong>Generate Critical CSS<\/strong> (t\u1ea1o CSS quan tr\u1ecdng)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>ON <\/em><\/li><\/ul>\n\n\n<p>T\u00f9y ch\u1ecdn n\u00e0y m\u1eb7c \u0111\u1ecbnh \u0111\u1ec3 l\u00e0 <em>ON<\/em>, nh\u01b0ng ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng khi <strong>Load CSS Asynchronously<\/strong> c\u0169ng \u0111\u1ec3 l\u00e0 ON. Khi c\u1ea3 hai t\u00f9y ch\u1ecdn \u0111\u01b0\u1ee3c b\u1eadt, Critical CSS s\u1ebd \u0111\u01b0\u1ee3c t\u1ea1o b\u1edfi d\u1ecbch v\u1ee5 CCSS (vi\u1ebft t\u1eaft c\u1ee7a <em>C<\/em>ritical <strong><em>CSS<\/em><\/strong>) do <a href=\"https:\/\/kiencang.net\/quic-cloud-faq\/\" target=\"_blank\" rel=\"noreferrer noopener\">QUIC.cloud \u0111\u1ea3m nhi\u1ec7m<\/a>, v\u00e0 sau \u0111\u00f3 \u0111\u01b0\u1ee3c g\u1eedi ng\u01b0\u1ee3c tr\u1edf l\u1ea1i LiteSpeed Cache. Tuy nhi\u00ean t\u00f4i (ng\u01b0\u1eddi d\u1ecbch) th\u1ea5y t\u1ed1c \u0111\u1ed9 t\u1ea1o critical CSS c\u1ee7a LiteSpeed r\u1ea5t ch\u1eadm, l\u00fd do l\u00e0 v\u00ec c\u00f3 th\u1ec3 h\u1ecd t\u1ea1o n\u00f3 \u1edf c\u1ea5p \u0111\u1ed9 URL c\u1ee5 th\u1ec3, trong khi c\u1ea3 plugin WP Rocket v\u00e0 <a href=\"https:\/\/kiencang.net\/cach-dung-plugin-swift-performance\/\" target=\"_blank\" rel=\"noreferrer noopener\">plugin Swift Performance<\/a> t\u1ea1o n\u00f3 \u1edf c\u1ea5p \u0111\u1ed9 ki\u1ec3u trang, do v\u1eady ch\u1ec9 ph\u1ea3i t\u1ea1o kho\u1ea3ng 10 critical CSS.<\/p>\n\n\n<p><strong>L\u01b0u \u00fd<\/strong>: m\u1ed9t s\u1ed1 theme \u0111\u00e3 t\u1ea1o s\u1eb5n critical CSS cho b\u1ea1n. Trong tr\u01b0\u1eddng h\u1ee3p \u0111\u1ea5y, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ec3 t\u00f9y ch\u1ecdn n\u00e0y l\u00e0 OFF.<\/p>\n\n\n<p>M\u1ed9t khi Critical CSS \u0111\u01b0\u1ee3c t\u1ea1o, n\u00f3 s\u1ebd \u0111\u01b0\u1ee3c t\u1ea3i \u0111\u1ea7u ti\u00ean, v\u00e0 sau \u0111\u00f3 CSS c\u00f2n l\u1ea1i s\u1ebd \u0111\u01b0\u1ee3c t\u1ea3i kh\u00f4ng \u0111\u1ed3ng b\u1ed9 v\u1edbi HTML. Trang s\u1ebd kh\u00f4ng c\u00f2n b\u1ecb t\u00ecnh tr\u1ea1ng t\u1ea3i m\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u1ecbnh d\u1ea1ng n\u1eefa.<\/p>\n\n\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch n\u00f3 ho\u1ea1t \u0111\u1ed9ng:<\/p>\n\n\n<ol><li>Ng\u01b0\u1eddi \u0111\u1ecdc g\u1eedi y\u00eau c\u1ea7u \u0111\u1ebfn Client Server (m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n hay t\u1ed5ng qu\u00e1t h\u01a1n l\u00e0 m\u00e1y ch\u1ee7 web d\u00e0nh cho ng\u01b0\u1eddi \u0111\u1ecdc).<\/li><li>N\u1ebfu ch\u01b0a c\u00f3 Critical CSS th\u00ec Client Server s\u1ebd g\u1eedi y\u00eau c\u1ea7u t\u1ea1o Critical CSS cho m\u00e1y ch\u1ee7 Critical CSS t\u1eeb xa c\u1ee7a QUIC.cloud<\/li><li>M\u00e1y ch\u1ee7 CCSS s\u1ebd l\u1ea5y n\u1ed9i dung + t\u00e0i nguy\u00ean t\u1eeb m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n, r\u1ed3i sau \u0111\u00f3 t\u1ea1o Critical CSS.<\/li><li>M\u00e1y ch\u1ee7 CCSS sau \u0111\u00f3 g\u1eedi Critical CSS \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ea1o tr\u1edf l\u1ea1i m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n.<\/li><li>M\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n ph\u1ee5c v\u1ee5 n\u1ed9i dung k\u00e8m v\u1edbi Critical CSS cho ng\u01b0\u1eddi \u0111\u1ecdc.<\/li><\/ol>\n\n\n<p>\u0110i\u1ec1u n\u00e0y c\u00f3 m\u1ed9t v\u1ea5n \u0111\u1ec1 nh\u1ecf: khi trang web c\u1ee7a b\u1ea1n v\u1eabn ch\u01b0a t\u1ea1o Critical CSS (ho\u1eb7c sau khi <strong>Purge All<\/strong>), l\u01b0\u1ee3t xem \u0111\u1ea7u ti\u00ean g\u1eedi y\u00eau c\u1ea7u t\u1edbi trang s\u1ebd c\u1ea7n \u0111\u1ee3i \u0111\u1ee3i qu\u00e1 tr\u00ecnh tr\u00ean ho\u00e0n th\u00e0nh tr\u01b0\u1edbc khi c\u00e1c style Critical CSS c\u00f3 s\u1eb5n. \u0110i\u1ec1u \u0111\u1ea5y c\u00f3 th\u1ec3 m\u1ea5t v\u00e0i gi\u00e2y v\u00e0 kh\u00e1ch truy c\u1eadp th\u01b0\u1eddng ch\u1eb3ng mu\u1ed1n v\u1eady. \u0110i\u1ec1u \u0111\u00f3 d\u1eabn ch\u00fang t\u00f4i \u0111\u1ebfn c\u00e0i \u0111\u1eb7t ti\u1ebfp theo.<\/p>\n\n\n<p><strong>Generate Critical CSS in the Background<\/strong> (t\u1ea1o critical CSS trong ch\u1ebf \u0111\u1ed9 n\u1ec1n)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>ON<\/em><\/li><\/ul>\n\n\n<p>L\u01b0u \u00fd: <strong>Load CSS Asynchronously<\/strong> ph\u1ea3i \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp l\u00e0 ON \u0111\u1ec3 t\u00ednh n\u0103ng n\u00e0y ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n<p>C\u00e0i \u0111\u1eb7t n\u00e0y x\u00e1c \u0111\u1ecbnh xem li\u1ec7u c\u00e1c t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong foreground hay trong background. N\u00f3 \u0111\u01b0\u1ee3c \u0111\u1ec3 ON theo m\u1eb7c \u0111\u1ecbnh. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 n\u00f3 l\u00e0 ch\u1ee9c n\u0103ng background, v\u00e0 s\u1eed d\u1ee5ng h\u00e0ng \u0111\u1ee3i d\u1ef1a-tr\u00ean-cron. Khi trang \u0111\u01b0\u1ee3c xem, n\u1ebfu kh\u00f4ng c\u00f3 critical CSS n\u00e0o \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh cho ki\u1ec3u trang, m\u1ed9t y\u00eau c\u1ea7u \u0111\u01b0\u1ee3c th\u00eam v\u00e0o h\u00e0ng \u0111\u1ee3i, v\u00e0 trang ti\u1ebfp t\u1ee5c t\u1ea3i m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ee3i ch\u1edd.<\/p>\n\n\n<p>\u0110\u00e2y l\u00e0 \u0111i\u1ec1u b\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y khi c\u00e1c trang \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o trong h\u00e0ng \u0111\u1ee3i:<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"242\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-settings-optimize2.png\" alt=\"b\u1eadt t\u1ea1o critical CSS \u1edf ch\u1ebf \u0111\u1ed9 n\u1ec1n\" class=\"wp-image-14483\" srcset=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-settings-optimize2.png 800w, https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-settings-optimize2-300x91.png 300w, https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-settings-optimize2-768x232.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure><\/div>\n\n\n<p>N\u1ebfu cron c\u1ee7a b\u1ea1n b\u1ecb v\u00f4 hi\u1ec7u h\u00f3a (ho\u1eb7c b\u1ea1n kh\u00f4ng \u0111\u1ee3i \u0111\u01b0\u1ee3c), b\u1ea1n c\u00f3 th\u1ec3 nh\u1ea5n v\u00e0o n\u00fat <strong>Run Queue Manually<\/strong> \u0111\u1ec3 th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh n\u00e0y.<\/p>\n\n\n<p>N\u1ebfu <strong>Generate Critical CSS in the Background<\/strong> \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u00e0 OFF, th\u00ec critical CSS s\u1ebd \u0111\u01b0\u1ee3c t\u1ea1o trong foreground, ngay l\u1eadp t\u1ee9c khi trang \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ng\u01b0\u1eddi xem ph\u1ea3i \u0111\u1ee3i critical CSS t\u00ednh to\u00e1n xong tr\u01b0\u1edbc khi xem trang. \u0110i\u1ec1u n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh t\u1ea3i trang &amp; \u0111i\u1ec1u kh\u00f4ng n\u00ean x\u1ea3y ra.<\/p>\n\n\n<p><strong>Separate CCSS Cache Post Types<\/strong> (CCSS cache ri\u00eang r\u1ebd cho c\u00e1c ki\u1ec3u b\u00e0i post)<\/p>\n\n\n<p>Theo m\u1eb7c \u0111\u1ecbnh, m\u1ed7i thi\u1ebft l\u1eadp Critical CSS \u0111\u01b0\u1ee3c l\u01b0u cho t\u1eebng ki\u1ec3u b\u00e0i post. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 c\u00f3 CCSS cho c\u00e1c Post, CCSS cho c\u00e1c Page, CCSS cho c\u00e1c s\u1ea3n ph\u1ea9m (n\u1ebfu b\u1ea1n c\u00f3 ki\u1ec3u post t\u00f9y ch\u1ec9nh &#8220;Product&#8221;). N\u1ebfu b\u1ea1n c\u00f3 ki\u1ec3u b\u00e0i post m\u00e0 m\u1ed7i m\u1ee5c trong post \u0111\u00f3 c\u00f3 ki\u1ec3u \u0111\u1ecbnh d\u1ea1ng kh\u00e1c nhau th\u00ec m\u1ed9t b\u1ed9 Critical CSS duy nh\u1ea5t s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n. Th\u00eam ki\u1ec3u post v\u00e0o h\u1ed9p t\u01b0\u01a1ng \u1ee9ng, v\u00e0 Critical CSS s\u1ebd \u0111\u01b0\u1ee3c t\u1ea1o cho t\u1eebng m\u1ee5c c\u1ee7a ki\u1ec3u post \u0111\u00f3.<\/p>\n\n\n<div class=\"wp-block-stevehenty-drop-shadow-box dropshadowboxes-container\" style=\"width:auto\"><div class=\"dropshadowboxes-drop-shadow dropshadowboxes-lifted-both dropshadowboxes-rounded-corners dropshadowboxes-inside-and-outside-shadow\" style=\"background-color:#FFFFFF;border-style:solid;border-width:2px;border-color:#DDDDDD;width:;padding:10px\"><div>\n<p>V\u00ed d\u1ee5 n\u1ebfu c\u00e1c Page tr\u00ean trang c\u1ee7a b\u1ea1n c\u00f3 c\u00e1c \u0111\u1ecbnh d\u1ea1ng kh\u00e1c nhau, h\u00e3y nh\u1eadp page \u0111\u00f3 v\u00e0o h\u1ed9p.  C\u00e1c fiel critical CSS ri\u00eang r\u1ebd s\u1ebd \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef cho t\u1eebng b\u00e0i post c\u1ee5 th\u1ec3 c\u1ee7a ki\u1ec3u Page tr\u00ean trang c\u1ee7a b\u1ea1n.<\/p>\n<\/div><\/div><\/div>\n\n\n<p><strong>Separate CCSS Cache URIs<\/strong> (cache CCSS ri\u00eang r\u1ebd cho c\u00e1c URI)<\/p>\n\n\n<p>N\u1ebfu b\u1ea1n c\u00f3 c\u00e1c trang kh\u00f4ng gi\u1ed1ng v\u1edbi \u0111\u1ecbnh d\u1ea1ng chung nh\u01b0 c\u00e1c ki\u1ec3u post c\u00f2n l\u1ea1i, b\u1ea1n c\u00f3 th\u1ec3 li\u1ec7t k\u00ea c\u00e1c URI (ho\u1eb7c m\u1ed9t ph\u1ea7n URI) cho c\u00e1c page \u0111\u00f3 trong h\u1ed9p n\u00e0y. C\u00e1c file critical CSS s\u1ebd \u0111\u01b0\u1ee3c t\u1ea1o ri\u00eang cho c\u00e1c link bao g\u1ed3m chu\u1ed7i \u0111\u00f3. C\u00e1c URI s\u1ebd \u0111\u01b0\u1ee3c so s\u00e1nh v\u1edbi c\u00e1c bi\u1ebfn m\u00e1y ch\u1ee7 REQUEST_URI. \u0110\u1ec3 ch\u1ec9 \u0111\u1ecbnh ph\u1ea7n b\u1eaft \u0111\u1ea7u c\u1ee7a m\u1ed9t chu\u1ed7i, th\u00eam ^ v\u00e0o ph\u1ea7n \u0111\u1ea7u c\u1ee7a chu\u1ed7i. \u0110\u1ec3 th\u1ef1c hi\u1ec7n kh\u1edbp ch\u00ednh x\u00e1c, th\u00eam $ v\u00e0o ph\u1ea7n cu\u1ed1i c\u1ee7a chu\u1ed7i.<\/p>\n\n\n<p><strong>C\u00e1c v\u00ed d\u1ee5 v\u1ec1 kh\u1edbp chu\u1ed7i<\/strong><\/p>\n\n\n<div class=\"wp-block-stevehenty-drop-shadow-box dropshadowboxes-container\" style=\"width:auto\"><div class=\"dropshadowboxes-drop-shadow dropshadowboxes-lifted-both dropshadowboxes-rounded-corners dropshadowboxes-inside-and-outside-shadow\" style=\"background-color:#FFFFFF;border-style:solid;border-width:2px;border-color:#DDDDDD;width:;padding:10px\"><div>\n<p>Gi\u1ea3 s\u1eed b\u1ea1n c\u00f3 c\u00e1c URI sau:<\/p>\n\n\n<ol><li><code>\/recipes\/baking\/<\/code><\/li><li><code>\/recipes\/baking\/cakes<\/code><\/li><li><code>\/recipes\/baking\/brownies<\/code><\/li><li><code>\/popular\/recipes\/baking\/<\/code><\/li><\/ol>\n\n\n<p>Chu\u1ed7i <em>\/recipes\/baking\/<\/em> s\u1ebd kh\u1edbp v\u1edbi to\u00e0n b\u1ed9 b\u1ed1n URI.<\/p>\n\n\n<p>Chu\u1ed7i <em>\/recipes\/baking\/$<\/em> s\u1ebd kh\u1edbp v\u1edbi URI s\u1ed1 #1 (v\u00ec $ \u0111\u1ea1i di\u1ec7n cho kh\u1edbp ch\u00ednh x\u00e1c).<\/p>\n\n\n<p>Chu\u1ed7i <em>^\/recipes\/baking<\/em> s\u1ebd kh\u1edbp v\u1edbi c\u00e1i s\u1ed1 #1, #2, #3 (v\u00ec ^ \u0111\u1ea1i di\u1ec7n cho chu\u1ed7i b\u1eaft \u0111\u1ea7u c\u1ee7a URI).<\/p>\n<\/div><\/div><\/div>\n\n\n<p><strong>Inline CSS Async Lib<\/strong> (n\u1ed9i tuy\u1ebfn th\u01b0 vi\u1ec7n CSS kh\u00f4ng \u0111\u1ed3ng b\u1ed9)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: ON<\/li><\/ul>\n\n\n<p>L\u1ef1a ch\u1ecdn n\u00e0y s\u1ebd inline th\u01b0 vi\u1ec7n CSS kh\u00f4ng \u0111\u1ed3ng b\u1ed9 \u0111\u1ec3 tr\u00e1nh <a href=\"https:\/\/kiencang.net\/loai-bo-css-chan-hien-thi\/\">ch\u1eb7n hi\u1ec3n th\u1ecb<\/a> (render blocking).<\/p>\n\n\n<p><strong>Font Display Optimization<\/strong><\/p>\n\n\n<p><em>Default<\/em><\/p>\n\n\n<p>C\u00e0i \u0111\u1eb7t n\u00e0y s\u1ebd n\u1ed1i th\u00eam thu\u1ed9c t\u00ednh <em>font-display<\/em> v\u00e0o t\u1ea5t c\u1ea3 c\u00e1c quy t\u1eafc <em>@font-face<\/em> tr\u01b0\u1edbc khi caching CSS \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh c\u00e1ch c\u00e1c font n\u00ean hi\u1ec3n th\u1ecb tr\u01b0\u1edbc khi \u0111\u01b0\u1ee3c t\u1ea3i v\u1ec1.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tab_JS_Settings_cac_cai_dat_danh_cho_JS\"><\/span>Tab JS Settings (c\u00e1c c\u00e0i \u0111\u1eb7t d\u00e0nh cho JS)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-2js-1024x828.png\" alt=\"c\u00e1c c\u00e0i \u0111\u1eb7t d\u00e0nh cho JavaScript\" class=\"wp-image-14486\"\/><\/figure><\/div>\n\n\n<p><strong>JS Minify<\/strong> (r\u00fat g\u1ecdn JS)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>K\u00fd t\u1ef1 tr\u1eafng d\u01b0 th\u1eeba, d\u00f2ng k\u00fd t\u1ef1 m\u1edbi, v\u00e0 c\u00e1c ch\u00fa th\u00edch s\u1ebd \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf kh\u1ecfi t\u1ea5t c\u1ea3 JS n\u1ebfu t\u00f9y ch\u1ecdn n\u00e0y \u0111\u01b0\u1ee3c b\u1eadt (ON).<\/p>\n\n\n<p><strong>JS Combine<\/strong> (k\u1ebft h\u1ee3p JS)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>T\u1ea5t c\u1ea3 file JS ri\u00eang l\u1ebb s\u1ebd \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p th\u00e0nh file JS duy nh\u1ea5t n\u1ebfu t\u00f9y ch\u1ecdn n\u00e0y \u0111\u01b0\u1ee3c b\u1eadt (ON).<\/p>\n\n\n<p><strong>JS HTTP\/2 Push<\/strong><\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>JS s\u1ebd \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn tr\u00ecnh duy\u1ec7t tr\u01b0\u1edbc khi n\u00f3 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u n\u1ebfu t\u00f9y ch\u1ecdn n\u00e0y \u0111\u01b0\u1ee3c b\u1eadt.<\/p>\n\n\n<p><strong>Load JS Deferred<\/strong> (tr\u00ec ho\u00e3n t\u1ea3i JS)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>N\u1ebfu \u0111\u1ec3 ON, c\u00e0i \u0111\u1eb7t n\u00e0y \u00e1p v\u00e0o t\u1ea5t c\u1ea3 c\u00e1c script v\u00e0 s\u1ebd ch\u1ec9 t\u1ea3i ch\u00fang ch\u1ec9 khi file HTML \u0111\u01b0\u1ee3c t\u1ea3i xong (<a href=\"https:\/\/kiencang.net\/tai-javascript-defer-async\/\" target=\"_blank\" rel=\"noreferrer noopener\">tr\u00ec ho\u00e3n t\u1ea3i JS<\/a>).<\/p>\n\n\n<p><strong>Load Inline JS<\/strong> (t\u1ea3i JS n\u1ed9i tuy\u1ebfn)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>Default<\/em><\/li><\/ul>\n\n\n<p>T\u00f9y ch\u1ecdn n\u00e0y cho ph\u00e9p b\u1ea1n l\u1ef1a ch\u1ecdn khi n\u00e0o th\u00ec t\u1ea3i JS inline (n\u1ed9i tuy\u1ebfn). <em>Default<\/em> kh\u00f4ng s\u1eeda \u0111\u1ed5i JS n\u1ed9i tuy\u1ebfn. <em>After DOM Ready<\/em> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 t\u0103ng kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch JS v\u00e0 gi\u1ea3m l\u1ed7i JS c\u00f3 nguy\u00ean nh\u00e2n t\u1eeb vi\u1ec7c s\u1eed d\u1ee5ng khuy\u1ebfn ngh\u1ecb <em>Deferred<\/em> \u1edf tr\u00ean.<\/p>\n\n\n<p><strong>Exclude JQuery<\/strong> (lo\u1ea1i tr\u1eeb jQuery)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>ON<\/em><\/li><\/ul>\n\n\n<p>C\u00e0i \u0111\u1eb7t n\u00e0y lo\u1ea1i tr\u1eeb jQuery kh\u1ecfi t\u1ea5t c\u00e1c c\u00e1c bi\u1ec7n ph\u00e1p t\u1ed1i \u01b0u h\u00f3a \u1edf tr\u00ean. Khuy\u1ebfn ngh\u1ecb l\u00e0 v\u1eabn n\u00ean \u0111\u1ec3 c\u00e0i \u0111\u1eb7t n\u00e0y l\u00e0 ON, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong tr\u01b0\u1eddng h\u1ee3p b\u1ea1n c\u00f3 JavaScript n\u1ed9i tuy\u1ebfn. N\u1ebfu b\u1ea1n t\u1eebng g\u1eb7p ph\u1ea3i l\u1ed7i khi <strong>JS Combine<\/strong> \u0111\u01b0\u1ee3c b\u1eadt, b\u1eadt c\u00e0i \u0111\u1eb7t n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng lo\u1ea1i b\u1ecf \u0111\u01b0\u1ee3c ch\u00fang.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tab_Optimization_Settings_cac_cai_dat_toi_uu_hoa\"><\/span>Tab Optimization Settings (c\u00e1c c\u00e0i \u0111\u1eb7t t\u1ed1i \u01b0u h\u00f3a)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-3opt-833x1024.png\" alt=\"c\u00e0i \u0111\u1eb7t \u1edf tab t\u1ed1i \u01b0u h\u00f3a\" class=\"wp-image-14487\"\/><\/figure><\/div>\n\n\n<p><strong>CSS\/JS Cache TTL<\/strong> (th\u1eddi gian s\u1ed1ng c\u1ee7a cache CSS\/JS)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>604800<\/em><\/li><\/ul>\n\n\n<p>C\u00e1c file \u0111\u00e3 \u0111\u01b0\u1ee3c r\u00fat g\u1ecdn v\u00e0 k\u1ebft h\u1ee3p \u0111\u01b0\u1ee3c l\u01b0u trong th\u01b0 m\u1ee5c <em>\/wp-content\/litespeed\/cssjs\/<\/em>. T\u00f9y ch\u1ecdn n\u00e0y \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh c\u1ee5 th\u1ec3 kho\u1ea3ng th\u1eddi gian s\u1ed1ng c\u1ee7a cache. Gi\u00e1 tr\u1ecb nh\u1ecf nh\u1ea5t l\u00e0 3600 gi\u00e2y, nh\u01b0ng ch\u00fang t\u00f4i khuy\u1ebfn ngh\u1ecb n\u00ean \u0111\u1ec3 604800. Khi c\u00f3 l\u1ec7nh <strong>Purge All<\/strong> (x\u00f3a t\u1ea5t c\u1ea3 cache), CSS\/JS r\u00fat g\u1ecdn v\u00e0 k\u1ebft h\u1ee3p s\u1ebd \u0111\u01b0\u1ee3c x\u00f3a trong qu\u00e1 tr\u00ecnh purge.<\/p>\n\n\n<p><strong>HTML Minify<\/strong> (r\u00fat g\u1ecdn HTML)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>N\u1ebfu t\u00f9y ch\u1ecdn n\u00e0y \u0111\u01b0\u1ee3c b\u1eadt th\u00ec k\u00fd t\u1ef1 tr\u1ed1ng d\u01b0 th\u1eeba, d\u00f2ng m\u1edbi v\u00e0 ch\u00fa th\u00edch s\u1ebd b\u1ecb lo\u1ea1i b\u1ecf kh\u1ecfi t\u1ea5t c\u1ea3 file HTML.<\/p>\n\n\n<p><strong>Inline CSS Minify<\/strong> (r\u00fat g\u1ecdn CSS n\u1ed9i tuy\u1ebfn)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>N\u1ebfu t\u00f9y ch\u1ecdn n\u00e0y b\u1eadt (ON) th\u00ec c\u00e1c k\u00fd t\u1ef1 tr\u1eafng d\u01b0 th\u1eeba, d\u00f2ng m\u1edbi v\u00e0 c\u00e1c ch\u00fa th\u00edch s\u1ebd \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf kh\u1ecfi m\u00e3 CSS n\u1ed9i tuy\u1ebfn tr\u00ean trang HTML.<\/p>\n\n\n<p><strong>Inline JS Minify<\/strong> (r\u00fat g\u1ecdn JS n\u1ed9i tuy\u1ebfn)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: OFF<\/li><\/ul>\n\n\n<p>N\u1ebfu t\u00f9y ch\u1ecdn n\u00e0y \u0111\u01b0\u1ee3c b\u1eadt th\u00ec c\u00e1c k\u00fd t\u1ef1 tr\u1eafng d\u01b0 th\u1eeba, d\u00f2ng m\u1edbi, v\u00e0 c\u00e1c ch\u00fa th\u00edch s\u1ebd \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf kh\u1ecfi t\u1ea5t c\u1ea3 m\u00e3 JS n\u1ed9i tuy\u1ebfn tr\u00ean trang HTML.<\/p>\n\n\n<p class=\"has-light-green-cyan-background-color has-background\">C\u00e1 nh\u00e2n ng\u01b0\u1eddi d\u1ecbch th\u01b0\u1eddng t\u1eaft c\u1ea3 3 t\u00f9y ch\u1ecdn HTML minify, Inline CSS minify v\u00e0 Inline CSS minify. V\u00ec ch\u00fang th\u01b0\u1eddng kh\u00f4ng \u0111em l\u1ea1i t\u00e1c \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 trang, trong khi l\u1ea1i l\u00e0m m\u00e1y ch\u1ee7 m\u1ea5t th\u1eddi gian t\u1ed1i \u01b0u h\u00f3a n\u00f3, v\u00e0 c\u00f3 th\u1ec3 l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh x\u00e2y d\u1ef1ng tr\u01b0\u1edbc cache.<\/p>\n\n\n<p><strong>DNS Prefetch<\/strong> (t\u00ecm n\u1ea1p tr\u01b0\u1edbc DNS)<\/p>\n\n\n<p>M\u1eb7c \u0111\u1ecbnh: Empty List (danh s\u00e1ch r\u1ed7ng, kh\u00f4ng \u0111i\u1ec1n th\u00f4ng tin g\u00ec)<\/p>\n\n\n<p>V\u1edbi c\u00e0i \u0111\u1eb7t n\u00e0y b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c thi <a rel=\"noreferrer noopener\" href=\"https:\/\/kiencang.net\/preload-prefetch-preconnect\/\" target=\"_blank\">t\u00ecm ki\u1ebfm DNS cho danh s\u00e1ch t\u00ean mi\u1ec1n tr\u01b0\u1edbc khi n\u00f3 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u<\/a>. Th\u00f4ng qua vi\u1ec7c t\u00ecm n\u1ea1p c\u00e1c k\u1ebft qu\u1ea3 DNS, \u0111\u1ed9 tr\u1ec5 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3m \u0111\u00e1ng k\u1ec3 cho ng\u01b0\u1eddi truy c\u1eadp c\u0169ng nh\u01b0 khi h\u1ecd click v\u00e0o c\u00e1c li\u00ean k\u1ebft b\u00ean ngo\u00e0i, \u0111\u1eb7c bi\u1ec7t l\u00e0 tr\u00ean m\u1ea1ng di \u0111\u1ed9ng. C\u00e1c t\u00ean mi\u1ec1n n\u00ean \u0111\u01b0\u1ee3c nh\u1eadp v\u00e0o theo ki\u1ec3u m\u1ed9t d\u00f2ng m\u1ed9t t\u00ean mi\u1ec1n gi\u1ed1ng nh\u01b0 th\u1ebf n\u00e0y: <em>\/\/www.example.com<\/em><\/p>\n\n\n<p>B\u1ea1n kh\u00f4ng c\u1ea7n nh\u1eadp http ho\u1eb7c https.<\/p>\n\n\n<p><strong>DNS Prefetch Control<\/strong> (\u0111i\u1ec1u ch\u1ec9nh t\u00ecm n\u1ea1p tr\u01b0\u1edbc DNS)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>B\u1eadt DNS Prefetch tr\u00ean di\u1ec7n r\u1ed9ng cho t\u1ea5t c\u1ea3 URL trong t\u00e0i li\u1ec7u, bao g\u1ed3m \u1ea3nh, CSS, JavaScript v\u00e0 nh\u1eefng c\u00e1i t\u01b0\u01a1ng t\u1ef1. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 gi\u00fap c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 t\u1ea3i trang.<\/p>\n\n\n<p class=\"has-light-green-cyan-background-color has-background\">M\u1eb7c d\u00f9 t\u00f9y ch\u1ecdn n\u00e0y c\u00f3 v\u1ebb r\u1ea5t hay nh\u01b0ng ng\u01b0\u1eddi d\u1ecbch kh\u00f4ng d\u00f9ng, v\u00ec t\u00f4i cho r\u1eb1ng vi\u1ec7c k\u1ebft n\u1ed1i tr\u01b0\u1edbc DNS \u0111\u1ebfn t\u1ea5t c\u1ea3 c\u00e1c t\u00e0i nguy\u00ean b\u00ean ngo\u00e0i c\u1ee7a website m\u00e0 kh\u00f4ng c\u00f3 ch\u1ecdn l\u1ef1a c\u00f3 th\u1ec3 \u0111em \u0111\u1ebfn k\u1ebft qu\u1ea3 tr\u00e1i ng\u01b0\u1ee3c so v\u1edbi mong \u0111\u1ee3i.<\/p>\n\n\n<p><strong>Remove Comments<\/strong> (lo\u1ea1i b\u1ecf ch\u00fa th\u00edch)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>V\u1edbi t\u00f9y ch\u1ecdn m\u1eb7c \u0111\u1ecbnh, c\u00e1c ch\u00fa th\u00edch s\u1ebd \u0111\u01b0\u1ee3c gi\u1eef nguy\u00ean khi JS v\u00e0 CSS \u0111\u01b0\u1ee3c r\u00fat g\u1ecdn, nh\u01b0ng c\u00e1c ch\u00fa th\u00edch c\u00f3 th\u1ec3 chi\u1ebfm kh\u00f4ng gian c\u00f3 gi\u00e1 tr\u1ecb. B\u1eadt t\u00f9y ch\u1ecdn n\u00e0y \u0111\u1ec3 lo\u1ea1i b\u1ecf ch\u00fa th\u00edch kh\u1ecfi c\u00e1c file r\u00fat g\u1ecdn v\u00e0 gi\u00fap ch\u00fang ph\u00e2n ph\u1ed1i hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n\n\n<p><strong>Remove Query Strings<\/strong> (lo\u1ea1i b\u1ecf chu\u1ed7i truy v\u1ea5n)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>T\u00f9y ch\u1ecdn n\u00e0y s\u1ebd lo\u1ea1i b\u1ecf chu\u1ed7i truy v\u1ea5n ra kh\u1ecfi c\u00e1c t\u00e0i nguy\u00ean t\u0129nh. C\u00e1c t\u00e0i nguy\u00ean t\u0129nh v\u1edbi chu\u1ed7i truy v\u1ea5n c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u01b0\u1ee3c <a href=\"https:\/\/kiencang.net\/bo-nho-dem-trinh-duyet\/\" target=\"_blank\" rel=\"noreferrer noopener\">cache b\u1edfi tr\u00ecnh duy\u1ec7t<\/a> v\u00e0 c\u00e1c m\u00e1y ch\u1ee7 proxy. Lo\u1ea1i b\u1ecf chu\u1ed7i cho ph\u00e9p ch\u00fang \u0111\u01b0\u1ee3c cache, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 trang s\u1ebd \u0111\u01b0\u1ee3c t\u1ea3i nhanh h\u01a1n.<\/p>\n\n\n<p><strong>Load Google Fonts Asynchronously<\/strong> (t\u1ea3i Google font theo ki\u1ec3u kh\u00f4ng \u0111\u1ed3ng b\u1ed9)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 mu\u1ed1n b\u1eadt t\u1ea3i kh\u00f4ng \u0111\u1ed3ng b\u1ed9 cho t\u1ea5t c\u1ea3 CSS, nh\u01b0ng c\u00f3 th\u1ec3 b\u1ea1n ch\u1ec9 mu\u1ed1n \u00e1p d\u1ee5ng n\u00f3 cho Google Fonts m\u00e0 th\u00f4i. N\u1ebfu \u0111\u01b0\u1ee3c b\u1eadt, t\u00f9y ch\u1ecdn n\u00e0y s\u1ebd cho ph\u00e9p b\u1ea1n t\u1ea3i Google Fonts theo ki\u1ec3u kh\u00f4ng \u0111\u1ed3ng b\u1ed9 m\u00e0 kh\u00f4ng b\u1eaft bu\u1ed9c CSS c\u0169ng ph\u1ea3i t\u1ea3i theo c\u00e1ch \u0111\u00f3. Ngo\u00e0i ra t\u00f9y ch\u1ecdn n\u00e0y c\u0169ng th\u00eam <a rel=\"noreferrer noopener\" href=\"https:\/\/kiencang.net\/preconnect-dns-prefetch\/\" target=\"_blank\">preconnect<\/a> \u0111\u1ebfn t\u00ean mi\u1ec1n c\u1ee7a Google v\u00ec th\u1ebf c\u00e1c font c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea3i nhanh h\u01a1n.<\/p>\n\n\n<p><strong>Remove Google Fonts<\/strong> (lo\u1ea1i b\u1ecf Google Fonts)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>T\u00f9y ch\u1ecdn n\u00e0y s\u1ebd lo\u1ea1i b\u1ecf t\u1ea5t c\u1ea3 Google fonts kh\u1ecfi trang c\u1ee7a b\u1ea1n. C\u1ea7n \u0111\u1ea3m b\u1ea3o l\u00e0 tr\u01b0\u1edbc khi b\u1eadt b\u1ea1n c\u1ea7n ki\u1ec3m tra k\u1ef9. Tr\u1eeb khi b\u1ea1n c\u00f3 font ch\u1eef thay th\u1ebf ph\u00f9 h\u1ee3p \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef c\u1ee5c b\u1ed9, c\u00f2n kh\u00f4ng th\u00ec style c\u1ee7a trang c\u00f3 th\u1ec3 thay \u0111\u1ed5i r\u1ea5t nhi\u1ec1u (th\u01b0\u1eddng l\u00e0 theo h\u01b0\u1edbng ti\u00eau c\u1ef1c).<\/p>\n\n\n<p><strong>Remove WordPress Emoji<\/strong> (lo\u1ea1i b\u1ecf Emoji c\u1ee7a WordPress)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>N\u1ebfu \u0111\u01b0\u1ee3c b\u1eadt, t\u00f9y ch\u1ecdn n\u00e0y s\u1ebd lo\u1ea1i b\u1ecf c\u00e1c file JavaScript b\u1ed5 sung \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 h\u1ed7 tr\u1ee3 th\u00eam emojis trong c\u00e1c tr\u00ecnh duy\u1ec7t c\u0169. Ng\u01b0\u1eddi xem s\u1eed d\u1ee5ng tr\u00ecnh duy\u1ec7t hi\u1ec7n \u0111\u1ea1i \u0111\u00e3 c\u00f3 s\u1eb5n emoji t\u00edch h\u1ee3p b\u00ean trong h\u1ed7 tr\u1ee3 n\u00ean s\u1ebd kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng g\u00ec.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tab_Media_Settings_cac_cai_dat_cho_tai_nguyen_da_phuong_tien\"><\/span>Tab Media Settings (c\u00e1c c\u00e0i \u0111\u1eb7t cho t\u00e0i nguy\u00ean \u0111a ph\u01b0\u01a1ng ti\u1ec7n)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"770\" height=\"1024\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-4media-770x1024.png\" alt=\"c\u00e1c c\u00e0i \u0111\u1eb7t cho t\u00e0i nguy\u00ean \u0111a ph\u01b0\u01a1ng ti\u1ec7n\" class=\"wp-image-14490\" srcset=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-4media-770x1024.png 770w, https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-4media-226x300.png 226w, https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-4media-768x1021.png 768w, https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-4media-1156x1536.png 1156w, https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-4media.png 1401w\" sizes=\"(max-width: 770px) 100vw, 770px\" \/><\/figure><\/div>\n\n\n<p><strong>Lazy Load Images<\/strong> (<a href=\"https:\/\/kiencang.net\/lazy-load-anh-va-video\/\" target=\"_blank\" rel=\"noreferrer noopener\">lazy load \u1ea3nh<\/a>)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>Khi \u0111\u01b0\u1ee3c b\u1eadt, t\u00f9y ch\u1ecdn n\u00e0y ch\u1ec9 t\u1ea3i \u1ea3nh khi n\u00f3 n\u1eb1m trong khung nh\u00ecn tr\u00ecnh duy\u1ec7t (viewport). C\u00e1c \u1ea3nh c\u00f2n l\u1ea1i b\u00ean d\u01b0\u1edbi s\u1ebd ch\u1ec9 \u0111\u01b0\u1ee3c t\u1ea3i khi c\u1ea7n thi\u1ebft v\u00e0o th\u1eddi \u0111i\u1ec3m ch\u00fang \u0111\u01b0\u1ee3c cu\u1ed9n \u0111\u1ebfn khung nh\u00ecn.<\/p>\n\n\n<p>D\u00f9 h\u1eefu \u00edch, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m \u1ea3nh xu\u1ea5t hi\u1ec7n \u0111\u1ed9t ng\u1ed9t v\u00e0 \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng. B\u1ea1n c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n n\u00f3 b\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng CSS3, v\u00e0 \u0111\u1ec3 c\u00e1c \u1ea3nh \u0111\u01b0\u1ee3c t\u1ea3i b\u1eb1ng hi\u1ec7u \u1ee9ng fade-in (ho\u1eb7c hi\u1ec7u \u1ee9ng kh\u00e1c).<\/p>\n\n\n<p><strong>L\u01b0u \u00fd<\/strong>: N\u1ebfu tr\u00ecnh duy\u1ec7t kh\u00f4ng h\u1ed7 tr\u1ee3 CSS3, \u0111o\u1ea1n m\u00e3 b\u00ean d\u01b0\u1edbi s\u1ebd b\u1ecb b\u1ecf qua.<\/p>\n\n\n<p>\u0110o\u1ea1n m\u00e3 CSS sau c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 t\u1ea1o hi\u1ec7u \u1ee9ng &#8220;fade-in&#8221; cho c\u00e1c \u1ea3nh \u0111\u00e3 \u0111\u01b0\u1ee3c lazy load:<\/p>\n\n\n<pre class=\"wp-block-code\"><code>\/* PART 1 - Before Lazy Load *\/\nimg&#91;data-lazyloaded]{\n    opacity: 0;\n}<\/code><\/pre>\n\n\n<pre class=\"wp-block-code\"><code>\/* PART 2 - Upon Lazy Load *\/\nimg.litespeed-loaded{\n    -webkit-transition: opacity .5s linear 0.2s;\n    -moz-transition: opacity .5s linear 0.2s;\n    transition: opacity .5s linear 0.2s;\n    opacity: 1;\n}<\/code><\/pre>\n\n\n<p>\u0110i\u1ec3m m\u1ea5u ch\u1ed1t l\u00e0 thu\u1ed9c t\u00ednh selector <em>data-lazyloaded<\/em>, \u0111\u00e2y l\u00e0 ph\u01b0\u01a1ng th\u1ee9c \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 nh\u1eafm \u0111\u1ebfn c\u00e1c ph\u1ea7n t\u1eed d\u1ef1a tr\u00ean thu\u1ed9c t\u00ednh \u0111\u00e3 c\u00f3 c\u1ee7a ch\u00fang. <\/p>\n\n\n<p>Tr\u01b0\u1edbc khi \u1ea3nh \u0111\u01b0\u1ee3c lazy load, n\u00f3 s\u1ebd \u0111\u01b0\u1ee3c g\u1eafn thu\u1ed9c t\u00ednh <em>data=&#8221;lazyloaded&#8221;<\/em>, c\u00e1i cho ph\u00e9p PH\u1ea6N 1 c\u1ee7a \u0111o\u1ea1n m\u00e3 CSS t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn.<\/p>\n\n\n<p>M\u1ed9t khi \u1ea3nh \u0111\u01b0\u1ee3c t\u1ea3i xong, thu\u1ed9c t\u00ednh s\u1ebd b\u1ecb lo\u1ea1i b\u1ecf, PH\u1ea6N 1 kh\u00f4ng c\u00f2n li\u00ean quan n\u1eefa, v\u00e0 PH\u1ea6N 2 c\u1ee7a CSS s\u1ebd c\u00f3 t\u00e1c \u0111\u1ed9ng. Trong \u0111o\u1ea1n m\u00e3 CSS c\u1ee5 th\u1ec3 \u1edf v\u00ed d\u1ee5 tr\u00ean \u1ea3nh s\u1ebd \u0111\u01b0\u1ee3c fade-in, nh\u01b0ng b\u1ea1n c\u00f3 th\u1ec3 thay th\u1ebf m\u00e3 b\u1eb1ng b\u1ea5t c\u1ee9 hi\u1ec7u \u1ee9ng CSS n\u00e0o m\u00e0 b\u1ea1n mu\u1ed1n.<\/p>\n\n\n<p><strong>Basic Image Placeholder<\/strong> (\u1ea3nh gi\u1eef ch\u1ed7 c\u01a1 b\u1ea3n)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: empty string (kh\u00f4ng \u0111i\u1ec1n g\u00ec)<\/li><\/ul>\n\n\n<p>Khi <strong>Lazy Load Images<\/strong> \u0111\u01b0\u1ee3c b\u1eadt, m\u1ed9t h\u1ed9p m\u00e0u x\u00e1m s\u1ebd \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb \u0111\u00f3ng vai tr\u00f2 gi\u1eef ch\u1ed7 (placeholder) cho \u0111\u1ebfn khi \u1ea3nh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea3i v\u1ec1. N\u1ebfu b\u1ea1n th\u00edch \u0111i\u1ec1u g\u00ec \u0111\u00f3 s\u00e1ng t\u1ea1o h\u01a1n, b\u1ea1n c\u00f3 th\u1ec3 ch\u1ec9 \u0111\u1ecbnh <a href=\"https:\/\/kiencang.net\/hinh-anh-ma-hoa-base64\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u1ea3nh base64<\/a> c\u1ee5 th\u1ec3 c\u1ee7a m\u00ecnh. B\u1ea1n c\u00f3 th\u1ec3 \u0111\u01b0a \u1ea3nh c\u1ee7a b\u1ea1n v\u00e0o \u0111\u00e2y, ho\u1eb7c b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng <code>LITESPEED_PLACEHOLDER<\/code>\u00a0constant trong file <em>wp-config.php<\/em> c\u1ee7a b\u1ea1n. N\u1ebfu c\u1ea3 hai \u0111\u1ec1u \u0111\u01b0\u1ee3c b\u1eadt, t\u00f9y ch\u1ecdn n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c \u01b0u ti\u00ean h\u01a1n <code>wp-config.php<\/code>\u00a0constant.<\/p>\n\n\n<p><strong>Responsive Placeholder<\/strong> (gi\u1eef ch\u1ed7 \u0111\u00e1p \u1ee9ng)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>C\u00e1c \u1ea3nh gi\u1eef ch\u1ed7 \u0111\u00e1p \u1ee9ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u00f9ng trong tr\u01b0\u1eddng h\u1ee3p khi thu\u1ed9c t\u00ednh chi\u1ec1u r\u1ed9ng v\u00e0 chi\u1ec1u cao c\u1ee7a \u1ea3nh \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp. Nhi\u1ec7m v\u1ee5 \u1edf ph\u1ea7n n\u00e0y l\u00e0 t\u1ea1o ra k\u00edch c\u1ee1 gi\u1ed1ng nh\u01b0 \u1ea3nh gi\u00fap cho layout c\u1ee7a b\u1ea1n kh\u00f4ng b\u1ecb x\u00e1o tr\u1ed9n (\u0111i\u1ec1u r\u1ea5t kh\u00f3 ch\u1ecbu v\u1edbi tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng, PageSpeed c\u0169ng m\u1edbi [\u0111\u1ea7u n\u0103m 2020] \u0111\u01b0a thu\u1ed9c t\u00ednh n\u00e0y v\u00e0o \u0111\u1ec3 ch\u1ea5m \u0111i\u1ec3m v\u00e0 g\u1ecdi n\u00f3 l\u00e0 &#8220;\u0110i\u1ec3m s\u1ed1 thay \u0111\u1ed5i b\u1ed1 c\u1ee5c \u1edf d\u1ea1ng t\u00edch l\u0169y\/Cumulative Layout Shift&#8221;).<\/p>\n\n\n<p><strong>Responsive Placeholder SVG<\/strong> (\u1ea3nh gi\u1eef ch\u1ed7 d\u1ea1ng SVG)<\/p>\n\n\n<p>N\u1ebfu t\u1ea1o \u1ea3nh gi\u1eef ch\u1ed7 c\u1ee5c b\u1ed9, b\u1ea1n c\u00f3 th\u1ec3 ch\u1ec9 \u0111\u1ecbnh m\u1ed9t \u1ea3nh SVG c\u1ea7n d\u00f9ng, v\u00e0 n\u00f3 s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n th\u00e0nh \u1ea3nh chi\u1ebfm ch\u1ed7 base64 m\u1ed9t c\u00e1ch nhanh ch\u00f3ng.<\/p>\n\n\n<p><strong>L\u01b0u \u00fd<\/strong>: c\u00e1c bi\u1ebfn <em>{width}<\/em> v\u00e0 <em>{height}<\/em> s\u1ebd \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng c\u00e1c thu\u1ed9c t\u00ednh \u1ea3nh t\u01b0\u01a1ng \u1ee9ng. Bi\u1ebfn <em>{color}<\/em> s\u1ebd \u0111\u01b0\u1ee3c thay th\u1ebf v\u1edbi c\u00e0i \u0111\u1eb7t m\u00e0u s\u1eafc d\u00e0nh cho n\u1ec1n (background color).<\/p>\n\n\n<p><strong>Responsive Placeholder Color<\/strong> (m\u00e0u s\u1eafc gi\u1eef ch\u1ed7 \u0111\u00e1p \u1ee9ng)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>#cfd4db<\/em><\/li><\/ul>\n\n\n<p>Khu v\u1ef1c gi\u1eef ch\u1ed7 \u0111\u00e1p \u1ee9ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea1o \u0111\u1ec3 c\u00f3 b\u1ea5t c\u1ee9 m\u00e0u s\u1eafc n\u00e0o m\u00e0 b\u1ea1n mu\u1ed1n. S\u1eed d\u1ee5ng t\u00ednh n\u0103ng ch\u1ecdn m\u00e0u (color picker) n\u1ebfu b\u1ea1n th\u1ea5y c\u1ea7n thi\u1ebft. \u0110\u00e2y l\u00e0 m\u00e0u s\u1eafc \u0111\u01b0\u1ee3c d\u00f9ng cho \u1ea3nh SVG n\u00f3i \u1edf ph\u1ea7n tr\u00ean.<\/p>\n\n\n<p><strong>LQIP Cloud Generator<\/strong> (t\u1ea1o \u1ea3nh LQIP th\u00f4ng qua cloud)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p><a rel=\"noreferrer noopener\" href=\"https:\/\/kiencang.net\/anh-lqip\/\" target=\"_blank\">\u1ea2nh LQIP<\/a> (Low Quality Image Placeholder \/ \u1ea2nh gi\u1eef ch\u1ed7 ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p) l\u00e0 <a href=\"https:\/\/kiencang.net\/cdn-quic-cloud\/\" target=\"_blank\" rel=\"noreferrer noopener\">d\u1ecbch v\u1ee5 do QUIC.cloud \u0111\u1ea3m nhi\u1ec7m<\/a> cho ph\u00e9p b\u1ea1n t\u1ea1o \u1ea3nh gi\u1eef ch\u1ed7 \u0111\u1ed9c \u0111\u00e1o ri\u00eang cho t\u1eebng \u1ea3nh, LQIP l\u00e0 phi\u00ean b\u1ea3n \u1ea3nh \u0111\u01b0\u1ee3c l\u00e0m m\u1edd v\u00e0 gi\u1ea3m k\u00edch c\u1ee1 c\u1ee7a \u1ea3nh ch\u1ea5t l\u01b0\u1ee3ng cao s\u1ebd \u0111\u01b0\u1ee3c t\u1ea3i sau \u0111\u00f3 khi ng\u01b0\u1eddi d\u00f9ng cu\u1ed9n chu\u1ed9t \u0111\u1ebfn.<\/p>\n\n\n<p><strong>LQIP Quality<\/strong> (thi\u1ebft l\u1eadp ch\u1ea5t l\u01b0\u1ee3ng cho \u1ea3nh LQIP)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>4<\/em><\/li><\/ul>\n\n\n<p>Ch\u1ec9 \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng c\u1ee5 th\u1ec3 cho \u1ea3nh LQIP \u0111\u01b0\u1ee3c t\u1ea1o. Gi\u00e1 tr\u1ecb cao h\u01a1n s\u1ebd t\u1ea1o \u0111\u1ed9 ph\u00e2n gi\u1ea3i l\u1edbn h\u01a1n, h\u1ec7 qu\u1ea3 l\u00e0 gi\u00fap \u1ea3nh chi\u1ebfm ch\u1ed7 ch\u1ea5t l\u01b0\u1ee3ng h\u01a1n, nh\u01b0ng s\u1ebd l\u00e0m file c\u00f3 k\u00edch c\u1ee1 l\u1edbn h\u01a1n, v\u00e0 l\u00e0m t\u0103ng k\u00edch c\u1ee1 trang. Gi\u00e1 tr\u1ecb l\u1ef1a ch\u1ecdn n\u1eb1m trong kho\u1ea3ng t\u1eeb 1 \u0111\u1ebfn 20.<\/p>\n\n\n<p><strong>Generate LQIP In Background<\/strong> (t\u1ea1o \u1ea3nh LQIP trong ch\u1ebf \u0111\u1ed9 n\u1ec1n)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>ON<\/em><\/li><\/ul>\n\n\n<p>Khi l\u1ea7n \u0111\u1ea7u trang \u0111\u01b0\u1ee3c gh\u00e9 th\u0103m, c\u00e1c \u1ea3nh LQIP ph\u1ea3i \u0111\u01b0\u1ee3c t\u1ea1o. N\u1ebfu c\u00e1i \u0111\u1eb7t n\u00e0y \u0111\u1ec3 l\u00e0 ON, qu\u00e1 tr\u00ecnh t\u1ea1o s\u1ebd di\u1ec5n ra trong ch\u1ebf \u0111\u1ed9 background th\u00f4ng qua h\u00e0ng \u0111\u1ee3i cron. C\u00e1c c\u00e0i \u0111\u1eb7t cho <strong>Responsive Paceholder<\/strong> s\u1ebd \u0111\u01b0\u1ee3c d\u00f9ng cho \u0111\u1ebfn khi qu\u00e1 tr\u00ecnh t\u1ea1o LQIP ho\u00e0n th\u00e0nh.<\/p>\n\n\n<p>N\u1ebfu t\u00f9y ch\u1ecdn n\u00e0y \u0111\u01b0\u1ee3c \u0111\u1ec3 l\u00e0 <em>OFF<\/em>, \u1ea3nh gi\u1eef ch\u1ed7 s\u1ebd \u0111\u01b0\u1ee3c t\u1ea1o trong kho\u1ea3ng th\u1eddi gian m\u00e0 kh\u00e1ch gh\u00e9 th\u0103m \u0111\u1ee3i. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m ch\u1eadm trang cho l\u01b0\u1ee3t gh\u00e9 th\u0103m \u0111\u1ea7u ti\u00ean.<\/p>\n\n\n<p><strong>Lazy Load iframes<\/strong><\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>C\u00e0i \u0111\u1eb7t n\u00e0y ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c nh\u01b0 Lazy Load Images, ch\u1ec9 cho c\u00e1c iframe ch\u1ee9 kh\u00f4ng ph\u1ea3i cho \u1ea3nh. iframe \u0111i\u1ec3n h\u00ecnh l\u00e0 video (v\u00ed d\u1ee5 YouTube).<\/p>\n\n\n<p><strong>Inline Lazy Load Images Library<\/strong> (n\u1ed9i tuy\u1ebfn th\u01b0 vi\u1ec7n lazy load \u1ea3nh)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>Lazy Load y\u00eau c\u1ea7u m\u1ed9t th\u01b0 vi\u1ec7n JavaScript cho \u1ea3nh \u0111\u1ec3 th\u1ef1c hi\u1ec7n nhi\u1ec7m v\u1ee5. Khi c\u00e0i \u0111\u1eb7t n\u00e0y \u0111\u01b0\u1ee3c \u0111\u1ec3 l\u00e0 OFF, th\u01b0 vi\u1ec7n JS s\u1ebd \u0111\u01b0\u1ee3c g\u1ecdi th\u00f4ng qua y\u00eau c\u1ea7u ri\u00eang. Khi c\u00e0i \u0111\u1eb7t n\u00e0y l\u00e0 ON, th\u01b0 vi\u1ec7n JS s\u1ebd \u0111\u01b0\u1ee3c n\u1ed9i tuy\u1ebfn trong HTML.<\/p>\n\n\n<p>\u0110\u1ec3 t\u00f9y ch\u1ecdn l\u00e0 ON c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 trang tr\u00ean c\u00e1c d\u1ecbch v\u1ee5 ki\u1ec3m tra nh\u01b0 Pingdom, GTmetrix, v\u00e0 PageSpeed, tuy nhi\u00ean n\u00f3 s\u1ebd l\u00e0m cho k\u00edch c\u1ee1 trang c\u1ee7a b\u1ea1n l\u1edbn h\u01a1n.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tab_Media_Excludes_loai_tru_cac_tai_nguyen_da_phuong_tien\"><\/span>Tab Media Excludes (lo\u1ea1i tr\u1eeb c\u00e1c t\u00e0i nguy\u00ean \u0111a ph\u01b0\u01a1ng ti\u1ec7n)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"904\" height=\"1024\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-5mediaexcl-904x1024.png\" alt=\"lo\u1ea1i tr\u1eeb t\u00e0i nguy\u00ean \u0111a ph\u01b0\u01a1ng ti\u1ec7n\" class=\"wp-image-14498\" srcset=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-5mediaexcl-904x1024.png 904w, https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-5mediaexcl-265x300.png 265w, https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-5mediaexcl-768x870.png 768w, https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-5mediaexcl-1356x1536.png 1356w, https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-5mediaexcl.png 1409w\" sizes=\"(max-width: 904px) 100vw, 904px\" \/><\/figure><\/div>\n\n\n<p><strong>Lazy Load Image Excludes<\/strong> (lo\u1ea1i tr\u1eeb \u1ea3nh lazy load)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>empty string<\/em> (kh\u00f4ng \u0111i\u1ec1n g\u00ec)<\/li><\/ul>\n\n\n<p>\u0110\u00f4i khi c\u00f3 c\u00e1c \u1ea3nh m\u00e0 b\u1ea1n mu\u1ed1n t\u1ea3i ngay l\u1eadp t\u1ee9c b\u1ea5t k\u1ec3 n\u00f3 n\u1eb1m \u1edf \u0111\u00e2u tr\u00ean m\u00e0n h\u00ecnh. N\u1ebfu th\u1ebf b\u1ea1n h\u00e3y th\u00eam n\u00f3 \u1edf ph\u1ea7n n\u00e0y, m\u1ed7i c\u00e1i m\u1ed9t d\u00f2ng. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng URI \u0111\u1ea7y \u0111\u1ee7 ho\u1eb7c m\u1ed9t ph\u1ea7n chu\u1ed7i. M\u1ed9t ph\u1ea7n chu\u1ed7i c\u00f3 th\u1ec3 h\u1eefu \u00edch n\u1ebfu b\u1ea1n c\u00f3 m\u1ed9t th\u01b0 m\u1ee5c c\u00e1c \u1ea3nh c\u1ea7n ph\u1ea3i t\u1ea3i ngay l\u1eadp t\u1ee9c. \u0110\u1eebng s\u1eed d\u1ee5ng wildcards \u1edf \u0111\u00e2y.<\/p>\n\n\n<p><strong>Lazy Load Image Class Name Excludes<\/strong> (lo\u1ea1i tr\u1eeb c\u00e1c \u1ea3nh c\u1ea7n lazy load d\u1ef1a theo t\u00ean class)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>empty string<\/em> (kh\u00f4ng \u0111i\u1ec1n g\u00ec)<\/li><\/ul>\n\n\n<p>C\u00e1c \u1ea3nh bao g\u1ed3m t\u00ean c\u00e1c class n\u00e0y s\u1ebd kh\u00f4ng lazy load (t\u1ee9c l\u00e0 n\u00f3 s\u1ebd t\u1ea3i ngay l\u1eadp t\u1ee9c nh\u01b0 th\u00f4ng th\u01b0\u1eddng). C\u1ea3 chu\u1ed7i \u0111\u1ea7y \u0111\u1ee7 l\u1eabn m\u1ed9t ph\u1ea7n \u0111\u1ec1u c\u00f3 th\u1ec3 d\u00f9ng \u0111\u01b0\u1ee3c. M\u1ed7i c\u00e1i m\u1ed9t d\u00f2ng.<\/p>\n\n\n<p><strong> Lazy Load Image Parent Class Name Excludes<\/strong> (lo\u1ea1i tr\u1eeb lazy load \u1ea3nh c\u00f3 cha l\u00e0 t\u00ean class n\u00e0y)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>empty string<\/em> (kh\u00f4ng \u0111i\u1ec1n g\u00ec)<\/li><\/ul>\n\n\n<p>C\u00e1c \u1ea3nh m\u00e0 c\u00f3 th\u1ebb cha g\u1ed3m c\u00e1c t\u00ean class n\u00e0y s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c lazy load. C\u1ea3 chu\u1ed7i \u0111\u1ea7y \u0111\u1ee7 v\u00e0 m\u1ed9t ph\u1ea7n \u0111\u1ec1u c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c. M\u1ed7i c\u00e1i m\u1ed9t d\u00f2ng.<\/p>\n\n\n<p><strong>Lazy Load iframe Class Name Excludes<\/strong> (lo\u1ea1i tr\u1eeb iframe kh\u00f4ng cho lazy load d\u1ef1a tr\u00ean t\u00ean class)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>empty string<\/em> (kh\u00f4ng \u0111i\u1ec1n g\u00ec)<\/li><\/ul>\n\n\n<p>C\u00e1c iframe bao g\u1ed3m c\u00e1c t\u00ean class n\u00e0y s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c lazy load. C\u1ea3 chu\u1ed7i \u0111\u1ea7y \u0111\u1ee7 v\u00e0 m\u1ed9t ph\u1ea7n \u0111\u1ec1u c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng. M\u1ed7i c\u00e1i m\u1ed9t d\u00f2ng.<\/p>\n\n\n<p><strong>Lazy Load iframe Parent Class Name Excludes<\/strong> (lo\u1ea1i tr\u1eeb lazy load iframe c\u00f3 cha l\u00e0 t\u00ean class n\u00e0y)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>empty string<\/em> (kh\u00f4ng \u0111i\u1ec1n g\u00ec)<\/li><\/ul>\n\n\n<p>C\u00e1c iframe c\u00f3 th\u1ebb cha ch\u1ee9a c\u00e1c t\u00ean class n\u00e0y s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c lazy load. C\u1ea3 chu\u1ed7i \u0111\u1ea7y \u0111\u1ee7 v\u00e0 m\u1ed9t ph\u1ea7n \u0111\u1ec1u c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c. M\u1ed7i c\u00e1i m\u1ed9t d\u00f2ng.<\/p>\n\n\n<p><strong>Lazy Load URI Excludes<\/strong> (lo\u1ea1i tr\u1eeb lazy load theo URI)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>empty string<\/em> (kh\u00f4ng \u0111i\u1ec1n g\u00ec)<\/li><\/ul>\n\n\n<p>C\u00e1c \u1ea3nh v\u00e0 iframe tr\u00ean website \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea \u1edf \u0111\u00e2y s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c lazy load. M\u1ed7i URI m\u1ed9t d\u00f2ng. M\u1ed9t ph\u1ea7n chu\u1ed7i c\u0169ng c\u00f3 th\u1ec3 d\u00f9ng. C\u00e1c URI s\u1ebd \u0111\u01b0\u1ee3c so s\u00e1nh v\u1edbi bi\u1ebfn m\u00e1y ch\u1ee7 REQUEST_URI. \u0110\u1ec3 ch\u1ec9 ph\u1ea7n \u0111\u1ea7u c\u1ee7a chu\u1ed7i, b\u1ea1n th\u00eam ^ v\u00e0o tr\u01b0\u1edbc chu\u1ed7i. \u0110\u1ec3 kh\u1edbp ch\u00ednh x\u00e1c, th\u00eam $ v\u00e0o cu\u1ed1i chu\u1ed7i.<\/p>\n\n\n<div class=\"wp-block-stevehenty-drop-shadow-box dropshadowboxes-container\" style=\"width:auto\"><div class=\"dropshadowboxes-drop-shadow dropshadowboxes-lifted-both dropshadowboxes-rounded-corners dropshadowboxes-inside-and-outside-shadow\" style=\"background-color:#FFFFFF;border-style:solid;border-width:2px;border-color:#DDDDDD;width:;padding:10px\"><div>\n<p>Gi\u1ea3 s\u1eed b\u1ea1n c\u00f3 c\u00e1c URI sau:<\/p>\n\n\n<ol><li><code>\/recipes\/baking\/<\/code><\/li><li><code>\/recipes\/baking\/cakes<\/code><\/li><li><code>\/recipes\/baking\/brownies<\/code><\/li><li><code>\/popular\/recipes\/baking\/<\/code><\/li><\/ol>\n\n\n<p>Chu\u1ed7i&nbsp;<code>\/recipes\/baking\/<\/code>&nbsp;s\u1ebd kh\u1edbp v\u1edbi c\u1ea3 b\u1ed1n URIs.<\/p>\n\n\n<p>Chu\u1ed7i&nbsp;<code>\/recipes\/baking\/$<\/code>&nbsp;s\u1ebd kh\u1edbp v\u1edbi URI #1 (b\u1edfi v\u00ec $ c\u00f3 ngh\u0129a l\u00e0 kh\u1edbp ch\u00ednh x\u00e1c).<\/p>\n\n\n<p>Chu\u1ed7i&nbsp;<code>^\/recipes\/baking<\/code>&nbsp;s\u1ebd kh\u1edbp v\u1edbi c\u00e1i #1, #2, v\u00e0 #3 (b\u1edfi v\u00ec ^ c\u00f3 ngh\u0129a l\u00e0 ch\u1ec9 \u0111\u1ecbnh ph\u1ea7n \u0111\u1ea7u c\u1ee7a chu\u1ed7i URI).<\/p>\n<\/div><\/div><\/div>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tab_Discussion_Settings_cai_dat_phan_thao_luan\"><\/span>Tab Discussion Settings (c\u00e0i \u0111\u1eb7t ph\u1ea7n th\u1ea3o lu\u1eadn)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"548\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-6discuss-1024x548.png\" alt=\"c\u00e1c c\u00e0i \u0111\u1eb7t cho ph\u1ea7n th\u1ea3o lu\u1eadn\" class=\"wp-image-14500\" srcset=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-6discuss-1024x548.png 1024w, https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-6discuss-300x160.png 300w, https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-6discuss-768x411.png 768w, https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-6discuss.png 1423w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p><strong>Gravatar Cache<\/strong><\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>C\u00e1c \u1ea3nh Gravatar c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c cache c\u1ee5c b\u1ed9, n\u1ebfu c\u00e0i \u0111\u1eb7t n\u00e0y \u0111\u01b0\u1ee3c \u0111\u1ec3 l\u00e0 ON. Ch\u00fa th\u00edch c\u1ee7a ng\u01b0\u1eddi d\u1ecbch: \u0110i\u1ec1u n\u00e0y gi\u00fap b\u1ea1n h\u1ea1n ch\u1ebf k\u1ebft n\u1ed1i ra m\u00e1y ch\u1ee7 b\u00ean ngo\u00e0i v\u00e0 gi\u1ea3m \u1ea3nh h\u01b0\u1edfng c\u1ee7a vi\u1ec7c \u0111\u1ee9t c\u00e1p r\u1ea5t hay x\u1ea3y ra \u1edf Vi\u1ec7t Nam v\u00e0 c\u00f3 khi k\u00e9o d\u00e0i c\u1ea3 th\u00e1ng.<\/p>\n\n\n<p><strong>Gravatar Cache Cron<\/strong><\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>\u0110\u1ec3 l\u00e0 ON \u0111\u1ec3 l\u00e0m m\u1edbi cache Gravatar s\u1eed d\u1ee5ng cron job.<\/p>\n\n\n<p><strong>Gravatar Cache TTL<\/strong><\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>604800<\/em><\/li><\/ul>\n\n\n<p>C\u00e0i \u0111\u1eb7t n\u00e0y ch\u1ec9 \u0111\u1ecbnh c\u1ee5 th\u1ec3 kho\u1ea3ng th\u1eddi gian (t\u00ednh theo gi\u00e2y) m\u00e0 \u1ea3nh Gravatars n\u00ean \u0111\u01b0\u1ee3c cache. B\u1ea5t c\u1ee9 gi\u00e1 tr\u1ecb n\u00e0o l\u1edbn h\u01a1n 3600 \u0111\u1ec1u h\u1ee3p l\u1ec7. Th\u1eddi gian 604800 gi\u00e2y t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t tu\u1ea7n. B\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ec3 gi\u00e1 tr\u1ecb n\u00e0y l\u00e0 m\u1ed9t th\u00e1ng (2419200) ho\u1eb7c ba th\u00e1ng (7257600) v\u00ec ng\u01b0\u1eddi d\u00f9ng hi\u1ebfm khi thay \u0111\u1ed5i \u1ea3nh \u0111\u1ea1i di\u1ec7n Gravatar.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tab_Tuning_Settings_dieu_chinh_cac_cai_dat\"><\/span>Tab Tuning Settings (\u0111i\u1ec1u ch\u1ec9nh c\u00e1c c\u00e0i \u0111\u1eb7t)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/06\/lscwp-pageopt-7tuning-675x1024.png\" alt=\"\u0111i\u1ec1u ch\u1ec9nh s\u00e2u h\u01a1n cho c\u00e1c c\u00e0i \u0111\u1eb7t li\u00ean quan \u0111\u1ebfn CSS v\u00e0 JS\" class=\"wp-image-14501\"\/><\/figure><\/div>\n\n\n<p><strong>Combined CSS Priority<\/strong> (\u01b0u ti\u00ean CSS \u0111\u00e3 \u0111\u01b0\u1ee3c g\u1ed9p)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>OFF<\/em><\/li><\/ul>\n\n\n<p>Th\u00f4ng th\u01b0\u1eddng, CSS k\u1ebft h\u1ee3p (g\u1ed9p) s\u1ebd \u0111\u01b0\u1ee3c t\u1ea3i sau c\u00e1c file CSS ngo\u00e0i. \u0110\u00f3 l\u00e0 v\u00ec CSS c\u1ee5c b\u1ed9 k\u1ebft h\u1ee3p c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng c\u00f3 c\u00e1c t\u00f9y ch\u1ec9nh c\u1ea7n \u0111\u01b0\u1ee3c t\u1ea3i sau CSS c\u01a1 s\u1edf (base CSS). B\u1eadt t\u00f9y ch\u1ecdn n\u00e0y n\u1ebfu b\u1ea1n c\u00f3 l\u00fd do h\u1ee3p l\u00fd \u0111\u1ec3 t\u1ea3i CSS k\u1ebft h\u1ee3p tr\u01b0\u1edbc c\u00e1c file CSS kh\u00e1c.<\/p>\n\n\n<p><strong>CSS Excludes<\/strong> (kh\u00f4ng bao g\u1ed3m CSS n\u00e0o)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>empty string<\/em> (kh\u00f4ng \u0111i\u1ec1n g\u00ec)<\/li><\/ul>\n\n\n<p>N\u1ebfu b\u1ea1n b\u1eadt r\u00fat g\u1ecdn, g\u1ed9p, ho\u1eb7c push CSS trong tab <strong>CSS Settings<\/strong>, b\u1ea1n c\u00f3 th\u1ec3 lo\u1ea1i tr\u1eeb m\u1ed9t s\u1ed1 CSS \u1edf \u0111\u00e2y. Th\u00eam b\u1ea5t c\u1ee9 file CSS n\u00e0o \u1edf \u0111\u00e2y (m\u1ed7i c\u00e1i m\u1ed9t d\u00f2ng) m\u00e0 b\u1ea1n mu\u1ed1n lo\u1ea1i tr\u1eeb kh\u1ecfi c\u00e1c ch\u1ee9c n\u0103ng t\u1ed1i \u01b0u h\u00f3a. B\u1ea1n c\u00f3 th\u1ec3 th\u00eam URL \u0111\u1ea7y \u0111\u1ee7 ho\u1eb7c m\u1ed9t ph\u1ea7n chu\u1ed7i. Kh\u00f4ng c\u1ea7n s\u1eed d\u1ee5ng wildcard trong chu\u1ed7i m\u1ed9t ph\u1ea7n (partial strings).<\/p>\n\n\n<p><strong>Combined JS Priority<\/strong> (\u01b0u ti\u00ean cho JS g\u1ed9p)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh:<em> OFF<\/em><\/li><\/ul>\n\n\n<p>Th\u00f4ng th\u01b0\u1eddng, JS g\u1ed9p \u0111\u01b0\u1ee3c t\u1ea3i sau c\u00e1c file JS b\u00ean ngo\u00e0i. B\u1eadt t\u00f9y ch\u1ecdn n\u00e0y (ON) n\u1ebfu b\u1ea1n c\u00f3 l\u00fd do \u0111\u1ec3 t\u1ea3i JavaScript g\u1ed9p tr\u01b0\u1edbc c\u00e1c file JS kh\u00e1c.<\/p>\n\n\n<p><strong>JS Excludes<\/strong> (lo\u1ea1i tr\u1eeb file JS)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>empty string<\/em> (kh\u00f4ng \u0111i\u1ec1n g\u00ec)<\/li><\/ul>\n\n\n<p>N\u1ebfu b\u1ea1n b\u1eadt r\u00fat g\u1ecdn, g\u1ed9p, ho\u1eb7c push JavaScript trong tab <strong>JavaScript Settings<\/strong>, b\u1ea1n c\u00f3 th\u1ec3 lo\u1ea1i tr\u1eeb m\u1ed9t s\u1ed1 JS \u1edf \u0111\u00e2y. Th\u00eam b\u1ea5t c\u1ee9 file JS n\u00e0o \u1edf \u0111\u00e2y (m\u1ed7i c\u00e1i m\u1ed9t d\u00f2ng) m\u00e0 b\u1ea1n mu\u1ed1n lo\u1ea1i tr\u1eeb kh\u1ecfi c\u00e1c ch\u1ee9c n\u0103ng t\u1ed1i \u01b0u h\u00f3a. B\u1ea1n c\u00f3 th\u1ec3 th\u00eam URL \u0111\u1ea7y \u0111\u1ee7 ho\u1eb7c m\u1ed9t ph\u1ea7n chu\u1ed7i. Kh\u00f4ng c\u1ea7n s\u1eed d\u1ee5ng wildcard trong chu\u1ed7i m\u1ed9t ph\u1ea7n (partial strings).<\/p>\n\n\n<p><strong>Max Combined File Size <\/strong>(k\u00edch c\u1ee1 file k\u1ebft h\u1ee3p l\u1edbn nh\u1ea5t)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>2MB<\/em><\/li><\/ul>\n\n\n<p>K\u00edch th\u01b0\u1edbc file l\u1edbn h\u01a1n d\u1eabn \u0111\u1ebfn vi\u1ec7c c\u1ea7n \u00edt file g\u1ed9p h\u01a1n \u0111\u01b0\u1ee3c t\u1ea1o ra. \u0110i\u1ec1u n\u00e0y t\u1ed1t cho \u0111i\u1ec3m s\u1ed1 trang c\u1ee7a b\u1ea1n (page score), nh\u01b0ng c\u1ea7n l\u01b0u \u00fd \u0111i\u1ec1u n\u00e0y: n\u1ebfu vi\u1ec7c k\u1ebft h\u1ee3p file cho k\u1ebft qu\u1ea3 file <em>qu\u00e1<\/em> l\u1edbn, n\u00f3 s\u1ebd l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y n\u1eb7ng b\u1ed9 nh\u1edb. Ch\u00fang t\u00f4i coi 2MB l\u00e0 \u0111i\u1ec3m m\u1ed1c t\u1ed1t. \u0110i\u1ec1u ch\u1ec9nh n\u00f3 t\u0103ng ho\u1eb7c gi\u1ea3m \u0111\u1ec3 ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi nhu c\u1ea7u website c\u1ee7a b\u1ea1n.<\/p>\n\n\n<p><strong>Critical CSS Rules<\/strong> (c\u00e1c quy t\u1eafc d\u00e0nh cho critical CSS)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>empty string<\/em> (kh\u00f4ng \u0111i\u1ec1n g\u00ec)<\/li><\/ul>\n\n\n<p>Khi <strong>Load CSS Asynchronously<\/strong> \u0111\u01b0\u1ee3c b\u1eadt trong tab <strong>CSS Setting<\/strong>, critical CSS \u0111\u01b0\u1ee3c t\u1ea1o t\u1ef1 \u0111\u1ed9ng. B\u1ea1n c\u00f3 th\u1ec3 mu\u1ed1n t\u1ea1o ra m\u1ed9t v\u00e0i \u0111\u1ecbnh ngh\u0129a b\u1ed5 sung c\u1ea7n ph\u1ea3i t\u1ea3i tr\u01b0\u1edbc \u0111\u1ec3 style ch\u00ednh x\u00e1c cho <a href=\"https:\/\/kiencang.net\/uu-tien-noi-dung-hien-thi\/\" target=\"_blank\" rel=\"noreferrer noopener\">n\u1ed9i dung thu\u1ed9c m\u00e0n h\u00ecnh \u0111\u1ea7u ti\u00ean<\/a>. Nh\u1eadp c\u00e1c quy t\u1eafc n\u00e0y \u1edf \u0111\u00e2y d\u01b0\u1edbi d\u1ea1ng CSS thu\u1ea7n t\u00fay, gi\u1ed1ng nh\u01b0 ch\u00fang xu\u1ea5t hi\u1ec7n trong stylesheet c\u1ee7a b\u1ea1n. Ch\u00fang s\u1ebd \u0111\u01b0\u1ee3c n\u1ed1i v\u00e0o CSS \u0111\u01b0\u1ee3c t\u1ea1o ra.<\/p>\n\n\n<p><strong>JS Deferred Excludes<\/strong> (lo\u1ea1i tr\u1eeb JS defer)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>empty list<\/em> (danh s\u00e1ch tr\u1ed1ng)<\/li><\/ul>\n\n\n<p>N\u1ebfu <strong>Load JS Deferred<\/strong> \u0111\u01b0\u1ee3c b\u1eadt trong tab <strong>JS Settings<\/strong>, v\u00e0 b\u1ea1n c\u00f3 m\u1ed9t s\u1ed1 file JavaScript kh\u00f4ng mu\u1ed1n defer h\u00e3y li\u1ec7t k\u00ea ch\u00fang \u1edf \u0111\u00e2y, m\u1ed7i c\u00e1i m\u1ed9t d\u00f2ng. B\u1ea1n c\u00f3 th\u1ec3 li\u1ec7t k\u00ea URI \u0111\u1ea7y \u0111\u1ee7 ho\u1eb7c m\u1ed9t ph\u1ea7n chu\u1ed7i \u0111\u1ec3 so kh\u1edbp (kh\u00f4ng c\u1ea7n d\u00f9ng wildcards).<\/p>\n\n\n<p><strong>URI Excludes<\/strong> (lo\u1ea1i tr\u1eeb URI)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: <em>empty string<\/em> (kh\u00f4ng \u0111i\u1ec1n g\u00ec)<\/li><\/ul>\n\n\n<p>N\u1ebfu c\u00f3 c\u00e1c trang b\u1ea1n mu\u1ed1n lo\u1ea1i tr\u1eeb kh\u1ecfi qu\u00e1 tr\u00ecnh t\u1ed1i \u01b0u h\u00f3a, b\u1ea1n c\u00f3 th\u1ec3 li\u1ec7t k\u00ea ch\u00fang \u1edf \u0111\u00e2y. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng d\u1eabn \u0111\u1ea7y \u0111\u1ee7, ho\u1eb7c m\u1ed9t ph\u1ea7n chu\u1ed7i.<\/p>\n\n\n<p><strong>Role Excludes<\/strong> (lo\u1ea1i tr\u1eeb d\u1ef1a tr\u00ean vai tr\u00f2)<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh: kh\u00f4ng check<\/li><\/ul>\n\n\n<p>C\u00f3 th\u1ec3 c\u00f3 c\u00e1c vai tr\u00f2 ng\u01b0\u1eddi d\u00f9ng m\u00e0 b\u1ea1n mu\u1ed1n lo\u1ea1i tr\u1eeb kh\u1ecfi b\u1ea5t c\u1ee9 ki\u1ec3u t\u1ed1i \u01b0u h\u00f3a n\u00e0o. L\u1ea5y v\u00ed d\u1ee5, n\u1ebfu b\u1ea1n l\u00e0 admin, v\u00e0 mu\u1ed1n ki\u1ec3m tra t\u00ednh n\u0103ng m\u1edbi, b\u1ea1n c\u00f3 th\u1ec3 mu\u1ed1n lo\u1ea1i tr\u1eeb vai tr\u00f2 administrator cho \u0111\u1ebfn khi th\u1eed nghi\u1ec7m c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh xong.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>V\u00e0i l\u1eddi c\u1ee7a ng\u01b0\u1eddi d\u1ecbch: Trong b\u00e0i vi\u1ebft n\u00e0y t\u00f4i tham kh\u1ea3o tr\u1ef1c ti\u1ebfp t\u00e0i li\u1ec7u ch\u00ednh th\u1ee9c c\u1ee7a LiteSpeed d\u00e0nh cho LiteSpeed Cache phi\u00ean b\u1ea3n WordPress. B\u00ean c\u1ea1nh b\u00e0i vi\u1ebft h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng LiteSpeed Cache r\u1ea5t hay c\u1ee7a Johnny \u0111\u00e3 \u0111\u01b0\u1ee3c d\u1ecbch sang ti\u1ebfng Vi\u1ec7t, t\u00f4i hy v\u1ecdng b\u00e0i n\u00e0y s\u1ebd b\u1ed5 sung &hellip;<\/p>\n","protected":false},"author":1,"featured_media":14506,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[249,276],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>T\u00f9y ch\u1ec9nh Page Optimization trong plugin LiteSpeed Cache [t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn ch\u00ednh th\u1ee9c] &#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\/page-optimization-litespeed-cache\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"T\u00f9y ch\u1ec9nh Page Optimization trong plugin LiteSpeed Cache [t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn ch\u00ednh th\u1ee9c] &#8226; Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"og:description\" content=\"V\u00e0i l\u1eddi c\u1ee7a ng\u01b0\u1eddi d\u1ecbch: Trong b\u00e0i vi\u1ebft n\u00e0y t\u00f4i tham kh\u1ea3o tr\u1ef1c ti\u1ebfp t\u00e0i li\u1ec7u ch\u00ednh th\u1ee9c c\u1ee7a LiteSpeed d\u00e0nh cho LiteSpeed Cache phi\u00ean b\u1ea3n WordPress. 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