{"id":12105,"date":"2019-02-27T08:39:09","date_gmt":"2019-02-27T08:39:09","guid":{"rendered":"https:\/\/www.ducanhplus.com\/?p=12105"},"modified":"2019-02-27T08:39:09","modified_gmt":"2019-02-27T08:39:09","slug":"ttfb-la-gi","status":"publish","type":"post","link":"https:\/\/kiencang.net\/ttfb-la-gi\/","title":{"rendered":"Th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ee7a m\u00e1y ch\u1ee7, hay TTFB l\u00e0 g\u00ec?"},"content":{"rendered":"\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-6577d6c61d710\" ><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-6577d6c61d710\"  type=\"checkbox\" id=\"item-6577d6c61d710\"><\/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\/ttfb-la-gi\/#TTFB_la_gi\" title=\"TTFB l\u00e0 g\u00ec?\">TTFB l\u00e0 g\u00ec?<\/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\/ttfb-la-gi\/#Nguyen_nhan_gay_ra_TTFB_bi_cham_la_gi\" title=\"Nguy\u00ean nh\u00e2n g\u00e2y ra TTFB b\u1ecb ch\u1eadm l\u00e0 g\u00ec?\">Nguy\u00ean nh\u00e2n g\u00e2y ra TTFB b\u1ecb ch\u1eadm l\u00e0 g\u00ec?<\/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\/ttfb-la-gi\/#Lam_the_nao_de_TTFB_nhanh_hon\" title=\"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 TTFB nhanh h\u01a1n\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 TTFB nhanh h\u01a1n<\/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\/ttfb-la-gi\/#Tao_noi_dung_dong\" title=\"T\u1ea1o n\u1ed9i dung \u0111\u1ed9ng\">T\u1ea1o n\u1ed9i dung \u0111\u1ed9ng<\/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\/ttfb-la-gi\/#Caching_phien_ban_tinh_trang_web_WordPress_cua_ban\" title=\"Caching phi\u00ean b\u1ea3n t\u0129nh trang web WordPress c\u1ee7a b\u1ea1n\">Caching phi\u00ean b\u1ea3n t\u0129nh trang web WordPress c\u1ee7a b\u1ea1n<\/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\/ttfb-la-gi\/#Cai_plugin_caching\" title=\"C\u00e0i plugin caching\">C\u00e0i plugin caching<\/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\/ttfb-la-gi\/#Su_dung_hosting_WordPress_co_tinh_nang_caching\" title=\"S\u1eed d\u1ee5ng hosting WordPress c\u00f3 t\u00ednh n\u0103ng caching\">S\u1eed d\u1ee5ng hosting WordPress c\u00f3 t\u00ednh n\u0103ng caching<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/kiencang.net\/ttfb-la-gi\/#Cau_hinh_may_chu_web\" title=\"C\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 web\">C\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 web<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/kiencang.net\/ttfb-la-gi\/#File_htaccess_Apache\" title=\"File .htaccess Apache\">File .htaccess Apache<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/kiencang.net\/ttfb-la-gi\/#Van_de_la_htaccess_la_nguyen_nhan_chinh_gay_ra_tac_dong_xau_ve_hieu_nang\" title=\"V\u1ea5n \u0111\u1ec1 l\u00e0 .htaccess l\u00e0 nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra t\u00e1c \u0111\u1ed9ng x\u1ea5u v\u1ec1 hi\u1ec7u n\u0103ng\">V\u1ea5n \u0111\u1ec1 l\u00e0 .htaccess l\u00e0 nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra t\u00e1c \u0111\u1ed9ng x\u1ea5u v\u1ec1 hi\u1ec7u n\u0103ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/kiencang.net\/ttfb-la-gi\/#Bat_ke_may_chu_web_ban_su_dung_la_gi_hay_dam_bao_rang_no_la_phien_ban_moi_nhat_va_ban_di_theo_cac_huong_dan_thuc_hanh_tot_nhat\" title=\"B\u1ea5t k\u1ec3 m\u00e1y ch\u1ee7 web b\u1ea1n s\u1eed d\u1ee5ng l\u00e0 g\u00ec, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u00f3 l\u00e0 phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t, v\u00e0 b\u1ea1n \u0111i theo c\u00e1c h\u01b0\u1edbng d\u1eabn th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t\">B\u1ea5t k\u1ec3 m\u00e1y ch\u1ee7 web b\u1ea1n s\u1eed d\u1ee5ng l\u00e0 g\u00ec, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u00f3 l\u00e0 phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t, v\u00e0 b\u1ea1n \u0111i theo c\u00e1c h\u01b0\u1edbng d\u1eabn th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/kiencang.net\/ttfb-la-gi\/#PHP\" title=\"PHP\">PHP<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/kiencang.net\/ttfb-la-gi\/#Gio_den_phan_chung_ta_khong_co_quyen_tu_chu\" title=\"Gi\u1edd \u0111\u1ebfn ph\u1ea7n ch\u00fang ta kh\u00f4ng c\u00f3 quy\u1ec1n t\u1ef1 ch\u1ee7\">Gi\u1edd \u0111\u1ebfn ph\u1ea7n ch\u00fang ta kh\u00f4ng c\u00f3 quy\u1ec1n t\u1ef1 ch\u1ee7<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/kiencang.net\/ttfb-la-gi\/#Luu_luong_truy_cap\" title=\"L\u01b0u l\u01b0\u1ee3ng truy c\u1eadp\">L\u01b0u l\u01b0\u1ee3ng truy c\u1eadp<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/kiencang.net\/ttfb-la-gi\/#Thoi_gian_TTFB_trung_binh_la_bao_nhieu\" title=\"Th\u1eddi gian TTFB trung b\u00ecnh l\u00e0 bao nhi\u00eau?\">Th\u1eddi gian TTFB trung b\u00ecnh l\u00e0 bao nhi\u00eau?<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"ttfb-la-gi\"><span class=\"ez-toc-section\" id=\"TTFB_la_gi\"><\/span>TTFB l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<ul><li>\u0110\u00e2y l\u00e0 kho\u1ea3ng th\u1eddi gian m\u00e0 tr\u00ecnh duy\u1ec7t c\u1ea7n ph\u1ea3i \u0111\u1ee3i \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c ph\u1ea7n th\u00f4ng tin \u0111\u1ea7u ti\u00ean t\u1eeb <a href=\"https:\/\/kiencang.net\/mua-hosting-cho-wordpress\/\" target=\"_blank\" rel=\"noreferrer noopener\">m\u00e1y ch\u1ee7 web<\/a> sau khi g\u1eedi y\u00eau c\u1ea7u nh\u1eadn n\u00f3;<\/li><li>TTFB l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a &#8220;Time To First Byte&#8221;;<\/li><li>N\u00f3 c\u00f3 th\u1ec3 l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y tr\u00ec ho\u00e3n \u0111\u00e1ng k\u1ec3 trong <a href=\"https:\/\/kiencang.net\/cach-trang-web-tai-va-hien-thi\/\" target=\"_blank\" rel=\"noreferrer noopener\">k\u1ebft xu\u1ea5t trang<\/a> (page rendering);<\/li><li>N\u00f3 l\u00e0 h\u1ec7 qu\u1ea3 k\u1ebft h\u1ee3p c\u1ee7a v\u1ea5n \u0111\u1ec1 m\u1ea1ng v\u00e0 t\u1ed1c \u0111\u1ed9 trang ph\u00eda m\u00e1y ch\u1ee7.<\/li><\/ul>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/02\/dinh-nghia-ttfb-1.png\" alt=\"\u0111\u1ecbnh ngh\u0129a TTFB\" class=\"wp-image-12115\"\/><\/figure><\/div>\n\n\n<p>Tr\u00ec ho\u00e3n c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n gi\u1eefa th\u1eddi gian tr\u00ecnh duy\u1ec7t th\u1ef1c hi\u1ec7n y\u00eau c\u1ea7u v\u00e0 khi tr\u00ecnh duy\u1ec7t nh\u1eadn \u0111\u01b0\u1ee3c ph\u1ea3n h\u1ed3i.<\/p>\n\n\n<p>C\u00e1c tr\u00ec ho\u00e3n n\u00e0y c\u00f3 th\u1ec3 t\u0103ng th\u00eam v\u00e0 &#8220;th\u1eddi gian cho d\u1eef li\u1ec7u \u0111\u1ea7u ti\u00ean \/ TTFB&#8221; l\u00e0 ch\u1ec9 s\u1ed1 ch\u00fang ta c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng c\u1ee7a t\u1eadp h\u1ee3p c\u00e1c tr\u00ec ho\u00e3n n\u00e0y.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\" id=\"nguyen-nhan-gay-ra-ttfb-b\u1ecb-ch\u1eadm-la-gi\"><span class=\"ez-toc-section\" id=\"Nguyen_nhan_gay_ra_TTFB_bi_cham_la_gi\"><\/span>Nguy\u00ean nh\u00e2n g\u00e2y ra TTFB b\u1ecb ch\u1eadm l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/02\/TTFB-cham.png\" alt=\"TTFB b\u1ecb ch\u1eadm\" class=\"wp-image-12107\"\/><\/figure><\/div>\n\n\n<p>N\u00f3i chung c\u00f3 b\u1ed1n nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y th\u1eddi gian ph\u1ea3n h\u1ed3i m\u00e1y ch\u1ee7 cao&#8230;<\/p>\n\n\n<ul><li>V\u1ea5n \u0111\u1ec1 m\u1ea1ng;<\/li><li>T\u1ea1o n\u1ed9i dung \u0111\u1ed9ng;<\/li><li>C\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 web;<\/li><li>L\u01b0u l\u01b0\u1ee3ng truy c\u1eadp.<\/li><\/ul>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\" id=\"lam-th\u1ebf-nao-d\u1ec3-ttfb-nhanh-h\u01a1n\"><span class=\"ez-toc-section\" id=\"Lam_the_nao_de_TTFB_nhanh_hon\"><\/span>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 TTFB nhanh h\u01a1n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>B\u01b0\u1edbc \u0111\u1ea7u ti\u00ean l\u00e0 t\u1ed1i \u01b0u h\u00f3a nh\u1eefng g\u00ec trong t\u1ea7m tay c\u1ee7a b\u1ea1n. Nh\u1eefng th\u1ee9 b\u1ea1n c\u00f3 quy\u1ec1n \u0111i\u1ec1u ch\u1ec9nh bao g\u1ed3m&#8230;<\/p>\n\n\n<ul><li>T\u1ea1o n\u1ed9i dung \u0111\u1ed9ng;<\/li><li>C\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 web.<\/li><\/ul>\n\n\n<p>Nh\u1eefng th\u1ee9 b\u1ea1n \u00edt c\u00f3 quy\u1ec1n \u0111i\u1ec1u ch\u1ec9nh bao g\u1ed3m&#8230;<\/p>\n\n\n<ul><li>V\u1ea5n \u0111\u1ec1 m\u1ea1ng;<\/li><li>L\u01b0u l\u01b0\u1ee3ng truy c\u1eadp.<\/li><\/ul>\n\n\n<p>Tin t\u1ed1t l\u00e0 n\u1ebfu b\u1ea1n t\u1eadp trung \u0111\u1ec3 \u00fd \u0111\u1ebfn nh\u1eefng th\u1ee9 b\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh, c\u00e1ch m\u00e1y ch\u1ee7 ph\u1ea3n h\u1ed3i (v\u00e0 TTFB c\u1ee7a n\u00f3) s\u1ebd \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n cho nh\u1eefng t\u00ecnh hu\u1ed1ng m\u00e0 b\u1ea1n kh\u00f4ng l\u00e0m ch\u1ee7 \u0111\u01b0\u1ee3c.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\" id=\"t\u1ea1o-n\u1ed9i-dung-d\u1ed9ng\"><span class=\"ez-toc-section\" id=\"Tao_noi_dung_dong\"><\/span>T\u1ea1o n\u1ed9i dung \u0111\u1ed9ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/02\/ttfb-tao-noi-dung-dong.png\" alt=\"t\u1ea1o n\u1ed9i dung \u0111\u1ed9ng\" class=\"wp-image-12116\"\/><\/figure><\/div>\n\n\n<p>Nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng TTFB l\u1edbn l\u00e0 vi\u1ec7c m\u00e1y ch\u1ee7 web ph\u1ea3i t\u1ed1n th\u1eddi gian t\u1ea1o n\u1ed9i dung \u0111\u1ed9ng.<\/p>\n\n\n<p>Khi m\u00e1y ch\u1ee7 web ph\u1ea3i b\u1ecf c\u00f4ng t\u1ea1o n\u1ed9i dung \u0111\u1ed9ng (nh\u01b0 c\u00e1ch trang WordPress v\u1eabn l\u00e0m) m\u1ed9t s\u1ed1 thao t\u00e1c c\u1ea7n ph\u1ea3i x\u1ea3y ra gi\u1eefa th\u1eddi gian n\u00f3 nh\u1eadn \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u v\u00e0 th\u1eddi \u0111i\u1ec3m n\u00f3 g\u1eedi \u0111\u01b0\u1ee3c ph\u1ea3n h\u1ed3i cho tr\u00ecnh duy\u1ec7t.<\/p>\n\n\n<p>C\u00e1ch t\u1ed1t nh\u1ea5t \u0111\u1ec3 minh h\u1ecda \u0111i\u1ec1u n\u00e0y l\u00e0 so s\u00e1nh s\u1ef1 kh\u00e1c nhau gi\u1eefa n\u1ed9i dung t\u0129nh (static files) v\u00e0 n\u1ed9i dung \u0111\u1ed9ng (dynamic content).<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/02\/noi-dung-tinh-dong.png\" alt=\"n\u1ed9i dung t\u0129nh v\u00e0 n\u1ed9i dung \u0111\u1ed9ng\" class=\"wp-image-12110\"\/><\/figure><\/div>\n\n\n<ul><li>Khi tr\u00ecnh duy\u1ec7t y\u00eau c\u1ea7u file t\u0129nh, m\u00e1y ch\u1ee7 c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c ngay l\u1eadp t\u1ee9c t\u1ec7p y\u00eau c\u1ea7u;<\/li><li>Khi tr\u00ecnh duy\u1ec7t web y\u00eau c\u1ea7u file \u0111\u1ed9ng, m\u00e1y ch\u1ee7 web bu\u1ed9c ph\u1ea3i t\u1ed1n th\u1eddi gian x\u00e2y d\u1ef1ng n\u1ed9i dung ho\u00e0n ch\u1ec9nh tr\u01b0\u1edbc khi ph\u1ea3n h\u1ed3i \u0111\u01b0\u1ee3c cho tr\u00ecnh duy\u1ec7t.<\/li><\/ul>\n\n\n<p>C\u00e1c trang WordPress l\u00e0 n\u1ed9i dung \u0111\u1ed9ng. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 h\u1ecd ph\u1ea3i x\u00e2y d\u1ef1ng trang b\u1eb1ng c\u00e1ch nh\u1eadn c\u00e1c t\u1ec7p PHP v\u00e0 t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/02\/xay-dung-ttfb.png\" alt=\"x\u00e2y d\u1ef1ng TTFB\" class=\"wp-image-12111\"\/><\/figure><\/div>\n\n\n<p>\u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 c\u00f3 h\u00e0ng tr\u0103m, th\u1eadm ch\u00ed l\u00e0 h\u00e0ng ng\u00e0n t\u01b0\u01a1ng t\u00e1c ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n ch\u1ec9 \u0111\u1ec3 x\u00e2y d\u1ef1ng l\u00ean m\u1ed9t trang. Chuy\u1ec7n n\u00e0y x\u1ea3y ra v\u00e0o b\u1ea5t k\u1ef3 th\u1eddi \u0111i\u1ec3m n\u00e0o trang web \u0111\u01b0\u1ee3c g\u1ecdi b\u1edfi tr\u00ecnh duy\u1ec7t, th\u1eadm ch\u00ed n\u1ebfu n\u1ed9i dung c\u1ee7a trang kh\u00f4ng thay \u0111\u1ed5i.<\/p>\n\n\n<p>Qu\u00e1 tr\u00ecnh \u0111\u00f3 l\u00e0m t\u0103ng TTFB c\u1ee7a b\u1ea1n, l\u00e0m n\u00f3 ch\u1eadm l\u1ea1i (\u0111\u00f4i khi qu\u00e1 tr\u00ecnh n\u00e0y l\u00e0m m\u1ea5t m\u1ed9t gi\u00e2y ho\u1eb7c nhi\u1ec1u h\u01a1n).<\/p>\n\n\n<p>C\u00e1ch ch\u00ednh \u0111\u1ec3 h\u1ea1n ch\u1ebf v\u1ea5n \u0111\u1ec1 n\u1ed9i dung \u0111\u1ed9ng v\u1edbi c\u00e1c website d\u00f9ng WordPress l\u00e0 s\u1eed d\u1ee5ng phi\u00ean b\u1ea3n cache t\u0129nh c\u1ee7a trang (<a href=\"https:\/\/kiencang.net\/hd-plugin-litespeed-cache-p1\/\" target=\"_blank\" rel=\"noreferrer noopener\">LiteSpeed cache<\/a>, <a href=\"https:\/\/kiencang.net\/cach-dung-plugin-swift-performance\/\" target=\"_blank\" rel=\"noreferrer noopener\">Swift Performance<\/a>, WP-Rocket, <a href=\"https:\/\/kiencang.net\/category\/cache-enabler\/\" target=\"_blank\" rel=\"noreferrer noopener\">Cache Enabler<\/a>,&#8230;).<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\" id=\"caching-phien-b\u1ea3n-tinh-trang-web-wordpress-c\u1ee7a-b\u1ea1n\"><span class=\"ez-toc-section\" id=\"Caching_phien_ban_tinh_trang_web_WordPress_cua_ban\"><\/span>Caching phi\u00ean b\u1ea3n t\u0129nh trang web WordPress c\u1ee7a b\u1ea1n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>Ph\u1ea7n &#8220;x\u00e2y d\u1ef1ng&#8221; ch\u00fang ta xem x\u00e9t \u1edf tr\u00ean x\u1ea3y ra v\u00e0o b\u1ea5t c\u1ee9 khi n\u00e0o trang \u0111\u01b0\u1ee3c g\u1ecdi b\u1edfi tr\u00ecnh duy\u1ec7t.<\/p>\n\n\n<p>\u0110i\u1ec1u g\u00ec s\u1ebd x\u1ea3y ra khi ch\u00fang ta kh\u00f4ng ph\u1ea3i \u0111\u1ee3i tr\u00ecnh duy\u1ec7t g\u1ecdi n\u00f3. \u0110i\u1ec1u g\u00ec x\u1ea3y ra n\u1ebfu ch\u00fang ta x\u00e2y d\u1ef1ng trang s\u1eb5n v\u00e0 c\u00f3 s\u1eb5n file HTML cho tr\u00ecnh duy\u1ec7t b\u1ea5t c\u1ee9 khi n\u00e0o n\u00f3 mu\u1ed1n?<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/02\/cached-vs-nocache.png\" alt=\"cache v\u00e0 kh\u00f4ng cache\" class=\"wp-image-12112\"\/><\/figure><\/div>\n\n\n<p>\u0110i\u1ec1u n\u00e0y g\u1ecdi l\u00e0 <a href=\"https:\/\/kiencang.net\/caching-trong-wordpress\/\" target=\"_blank\" rel=\"noreferrer noopener\">k\u1ef9 thu\u1eadt caching<\/a>, v\u00e0 n\u00f3 \u0111\u01b0\u1ee3c m\u1ecdi ng\u01b0\u1eddi \u00e1p d\u1ee5ng theo hai c\u00e1ch:<\/p>\n\n\n<ul><li>C\u00e0i \u0111\u1eb7t plugin caching;<\/li><li>S\u1eed d\u1ee5ng host WordPress cung c\u1ea5p t\u00ednh n\u0103ng caching.<\/li><\/ul>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\" id=\"cai-plugin-caching\"><span class=\"ez-toc-section\" id=\"Cai_plugin_caching\"><\/span>C\u00e0i plugin caching<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 th\u1eed plugin LiteSpeed cache ho\u1eb7c Swift Performance, ho\u1eb7c ch\u1ec9 c\u1ea7n t\u00ecm ki\u1ebfm Google &#8220;plugin cache wordpress&#8221;. Plugin caching WordPress c\u00f3 th\u1ec3 y\u00eau c\u1ea7u b\u1ea1n t\u1ed1n th\u1eddi gian h\u1ecdc h\u1ecfi v\u00e0 c\u00f3 m\u1ed9t s\u1ed1 t\u00f9y ch\u1ec9nh c\u1ea5u h\u00ecnh nh\u01b0ng m\u1ed9t khi b\u1ea1n th\u1ef1c hi\u1ec7n \u0111\u00fang, n\u00f3 c\u00f3 th\u1ec3 r\u1ea5t hi\u1ec7u qu\u1ea3.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\" id=\"s\u1eed-d\u1ee5ng-hosting-wordpress-co-tinh-nang-caching\"><span class=\"ez-toc-section\" id=\"Su_dung_hosting_WordPress_co_tinh_nang_caching\"><\/span>S\u1eed d\u1ee5ng hosting WordPress c\u00f3 t\u00ednh n\u0103ng caching<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>S\u1eed d\u1ee5ng hosting WordPress ch\u1ea5t l\u01b0\u1ee3ng c\u00f3 c\u00f3 s\u1eb5n t\u00ednh n\u0103ng caching c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y. B\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng g\u00f3i host ch\u1ea5t l\u01b0\u1ee3ng cao c\u1ee7a <a href=\"https:\/\/wpengine.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">WP Engine<\/a>, <a href=\"https:\/\/kiencang.net\/gioi-thieu-closte\/\" target=\"_blank\" rel=\"noreferrer noopener\">Closte<\/a> v\u1edbi t\u00ednh n\u0103ng cung c\u1ea5p caching t\u1ef1 \u0111\u1ed9ng v\u00e0 b\u1ea3o v\u1ec7 b\u1ea1n tr\u00e1nh kh\u1ecfi c\u00e1c l\u1ed7i c\u1ea5u h\u00ecnh trong t\u01b0\u01a1ng lai c\u0169ng nh\u01b0 c\u00e1c th\u1ee9 kh\u00e1c m\u00e0 ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb web c\u00f3 xu h\u01b0\u1edbng l\u00e0m (th\u00ed d\u1ee5 nh\u01b0 c\u00e0i \u0111\u1eb7t c\u00e1c plugin ph\u00e1 ho\u1ea1i t\u1ed1c \u0111\u1ed9 trang).<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\" id=\"c\u1ea5u-hinh-may-ch\u1ee7-web\"><span class=\"ez-toc-section\" id=\"Cau_hinh_may_chu_web\"><\/span>C\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 web<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>Ph\u1ea7n ti\u1ebfp theo m\u00e0 b\u1ea1n c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m ch\u1ee7 l\u00e0 l\u1ef1a ch\u1ecdn ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 web v\u00e0 c\u00e1ch c\u1ea5u h\u00ecnh n\u00f3.<\/p>\n\n\n<p>Khi t\u00f4i n\u00f3i v\u1ec1 ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 web, \u00fd t\u00f4i l\u00e0 kh\u00f4ng ph\u1ea3i l\u00e0 m\u00e1y t\u00ednh ho\u1eb7c host, \u00fd t\u00f4i l\u00e0 ph\u1ea7n m\u1ec1m m\u00e0 n\u00f3 s\u1eed d\u1ee5ng (Apache, NGNIX, IIS, Litespeed, v\u00e2n v\u00e2n).<\/p>\n\n\n<p>T\u00f4i ch\u1ec9 \u0111\u1ec1 c\u1eadp m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 web, nh\u01b0ng n\u00f3 l\u00e0 v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn nh\u1ea5t&#8230;<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\" id=\"file-htaccess-apache\"><span class=\"ez-toc-section\" id=\"File_htaccess_Apache\"><\/span>File .htaccess Apache<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>V\u1edbi m\u00e1y ch\u1ee7 web Apache, file .htaccess l\u00e0 nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra t\u00ecnh tr\u1ea1ng TTFB k\u00e9m.<\/p>\n\n\n<p>File .htaccess l\u00e0 c\u00e1ch th\u1ee9c ti\u1ec7n l\u1ee3i \u0111\u1ec3 b\u1ea1n c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7. N\u00f3 r\u1ea5t thu\u1eadn ti\u1ec7n nh\u01b0ng trong th\u1ef1c t\u1ebf n\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf n\u01a1i kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n\n\n<p>File .htaccess \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u01b0a ra c\u00e1c h\u01b0\u1edbng d\u1eabn cho m\u00e1y ch\u1ee7 web v\u1ec1 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng. File n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 t\u1ea1o chuy\u1ec3n h\u01b0\u1edbng, mod rewrites, th\u00eam headers, v\u00e2n v\u00e2n.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\" id=\"v\u1ea5n-d\u1ec1-la-htaccess-la-nguyen-nhan-chinh-gay-ra-tac-d\u1ed9ng-x\u1ea5u-v\u1ec1-hi\u1ec7u-nang\"><span class=\"ez-toc-section\" id=\"Van_de_la_htaccess_la_nguyen_nhan_chinh_gay_ra_tac_dong_xau_ve_hieu_nang\"><\/span>V\u1ea5n \u0111\u1ec1 l\u00e0 .htaccess l\u00e0 nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra t\u00e1c \u0111\u1ed9ng x\u1ea5u v\u1ec1 hi\u1ec7u n\u0103ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>T\u00e0i li\u1ec7u ch\u00ednh th\u1ee9c v\u1ec1 Apache n\u00f3i r\u1eb1ng:<\/p>\n\n\n<blockquote class=\"wp-block-quote\"><p>Tuy nhi\u00ean, n\u00f3i chung vi\u1ec7c s\u1eed d\u1ee5ng .htaccess c\u1ea7n ph\u1ea3i tr\u00e1nh khi c\u00f3 th\u1ec3. B\u1ea5t c\u1ee9 c\u1ea5u h\u00ecnh n\u00e0o m\u00e0 b\u1ea1n mu\u1ed1n \u0111\u01b0a v\u00e0o file .htaccess, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u01b0\u01a1ng t\u1ef1 trong ph\u1ea7n &lt;Directory&gt; trong file c\u1ea5u h\u00ecnh ch\u00ednh c\u1ee7a m\u00e1y ch\u1ee7.<\/p><\/blockquote>\n\n\n<p>Apache ti\u1ebfp t\u1ee5c ch\u1ec9 ra nhi\u1ec1u v\u1ea5n \u0111\u1ec1 hi\u1ec7u su\u1ea5t c\u00f3 nguy\u00ean nh\u00e2n t\u1eeb vi\u1ec7c s\u1eed d\u1ee5ng .htaccess<\/p>\n\n\n<blockquote class=\"wp-block-quote\"><p>httpd s\u1ebd t\u00ecm ki\u1ebfm m\u1ecdi th\u01b0 m\u1ee5c \u0111\u1ec3 t\u00ecm \u0111\u01b0\u1ee3c file .htaccess. V\u00ec th\u1ebf cho ph\u00e9p s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a .htaccess l\u00e0 nguy\u00ean nh\u00e2n quan tr\u1ecdng \u0111\u00e1nh m\u1ea1nh v\u00e0o v\u1ea5n \u0111\u1ec1 hi\u1ec7u su\u1ea5t, b\u1ea5t k\u1ec3 l\u00e0 b\u1ea1n c\u00f3 th\u1ef1c s\u1ef1 s\u1eed d\u1ee5ng n\u00f3 hay kh\u00f4ng! Ngo\u00e0i ra, file .htaccess \u0111\u01b0\u1ee3c t\u1ea3i m\u1ed7i khi t\u00e0i li\u1ec7u \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u.<\/p><\/blockquote>\n\n\n<blockquote class=\"wp-block-quote\"><p>Trong tr\u01b0\u1eddng h\u1ee3p c\u00e1c l\u1ec7nh RewriteRule, trong ng\u1eef c\u1ea3nh .htaccess, c\u00e1c bi\u1ec3u th\u1ee9c ch\u00ednh quy n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c bi\u00ean d\u1ecbch l\u1ea1i v\u1edbi m\u1ecdi y\u00eau c\u1ea7u t\u1edbi th\u01b0 m\u1ee5c, trong ho\u00e0n c\u1ea3nh c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 ch\u00ednh, ch\u00fang \u0111\u01b0\u1ee3c bi\u00ean d\u1ecbch m\u1ed9t l\u1ea7n v\u00e0 l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m. Th\u00eam v\u00e0o \u0111\u00f3, b\u1ea3n th\u00e2n c\u00e1c quy t\u1eafc ph\u1ee9c t\u1ea1p h\u01a1n, v\u00ec ng\u01b0\u1eddi ta ph\u1ea3i gi\u1ea3i quy\u1ebft c\u00e1c h\u1ea1n ch\u1ebf \u0111i k\u00e8m v\u1edbi b\u1ed1i c\u1ea3nh tr\u00ean m\u1ed7i th\u01b0 m\u1ee5c v\u00e0 mod_rewrite.<\/p><\/blockquote>\n\n\n<p>Ch\u1ec9 ri\u00eang c\u00e1c \u0111i\u1ec1u tr\u00ean c\u00f3 th\u1ec3 l\u00e0 nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y tr\u00ec ho\u00e3n TTFB.<\/p>\n\n\n<p>C\u0169ng th\u1ebf, n\u1ebfu ch\u00fang ta xem x\u00e9t vai tr\u00f2 to l\u1edbn c\u1ee7a mod rewrite trong m\u1ed9t trang WordPress th\u00f4ng th\u01b0\u1eddng, ch\u00fang ta c\u00f3 th\u1ec3 t\u01b0\u1edfng t\u01b0\u1ee3ng n\u00f3 t\u1ec7 h\u1ea1i nh\u01b0 th\u1ebf n\u00e0o.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\" id=\"b\u1ea5t-k\u1ec3-may-ch\u1ee7-web-b\u1ea1n-s\u1eed-d\u1ee5ng-la-gi-hay-d\u1ea3m-b\u1ea3o-r\u1eb1ng-no-la-phien-b\u1ea3n-m\u1edbi-nh\u1ea5t-va-b\u1ea1n-di-theo-cac-h\u01b0\u1edbng-d\u1eabn-th\u1ef1c-hanh-t\u1ed1t-nh\u1ea5t\"><span class=\"ez-toc-section\" id=\"Bat_ke_may_chu_web_ban_su_dung_la_gi_hay_dam_bao_rang_no_la_phien_ban_moi_nhat_va_ban_di_theo_cac_huong_dan_thuc_hanh_tot_nhat\"><\/span>B\u1ea5t k\u1ec3 m\u00e1y ch\u1ee7 web b\u1ea1n s\u1eed d\u1ee5ng l\u00e0 g\u00ec, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u00f3 l\u00e0 phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t, v\u00e0 b\u1ea1n \u0111i theo c\u00e1c h\u01b0\u1edbng d\u1eabn th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>Ch\u1ec9 c\u1ea7n th\u01b0\u1eddng xuy\u00ean c\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 web l\u00e0 th\u1eddi gian TTFB c\u1ee7a b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\" id=\"php\"><span class=\"ez-toc-section\" id=\"PHP\"><\/span>PHP<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>V\u1edbi PHP, \u0111i\u1ec1u \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng l\u00e0 c\u1eadp nh\u1eadt l\u00ean phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t b\u1edfi v\u00ec m\u1ed9t s\u1ed1 c\u1eadp nh\u1eadt m\u1edbi nh\u1ea5t bao g\u1ed3m c\u00e1c c\u1ea3i ti\u1ebfn quan tr\u1ecdng v\u1ec1 v\u1ea5n \u0111\u1ec1 hi\u1ec7u su\u1ea5t.<\/p>\n\n\n<p>C\u00f9ng m\u1ed9t \u0111o\u1ea1n m\u00e3 s\u1ebd ch\u1ea1y ch\u1eadm h\u01a1n tr\u00ean phi\u00ean b\u1ea3n php c\u0169 so v\u1edbi phi\u00ean b\u1ea3n m\u1edbi h\u01a1n.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\" id=\"gi\u1edd-d\u1ebfn-ph\u1ea7n-chung-ta-khong-co-quy\u1ec1n-t\u1ef1-ch\u1ee7\"><span class=\"ez-toc-section\" id=\"Gio_den_phan_chung_ta_khong_co_quyen_tu_chu\"><\/span>Gi\u1edd \u0111\u1ebfn ph\u1ea7n ch\u00fang ta kh\u00f4ng c\u00f3 quy\u1ec1n t\u1ef1 ch\u1ee7<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>\u1ede ph\u1ea7n \u0111\u1ea7u c\u1ee7a b\u00e0i vi\u1ebft n\u00e0y t\u00f4i \u0111\u00e3 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn b\u1ed1n th\u1ee9 l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn TTFB.<\/p>\n\n\n<p>Nh\u1eefng th\u1ee9 m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng \u0111i\u1ec1u ch\u1ec9nh l\u00e0&#8230;<\/p>\n\n\n<ul><li>T\u1ea1o n\u1ed9i dung \u0111\u1ed9ng;<\/li><li>C\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 web.<\/li><\/ul>\n\n\n<p>Nh\u1eefng th\u1ee9 m\u00e0 b\u1ea1n \u00edt c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m ch\u1ee7 l\u00e0&#8230;<\/p>\n\n\n<ul><li>L\u01b0u l\u01b0\u1ee3ng truy c\u1eadp;<\/li><li>V\u1ea5n \u0111\u1ec1 v\u1ec1 m\u1ea1ng.<\/li><\/ul>\n\n\n<p>N\u1ebfu b\u1ea1n gi\u1ea3m \u0111\u01b0\u1ee3c TTFB, b\u1ea1n th\u1ef1c s\u1ef1 \u0111\u00e3 c\u00f3 &#8220;quy\u1ec1n t\u1ef1 ch\u1ee7&#8221; nh\u1ea5t \u0111\u1ecbnh v\u1edbi v\u1ea5n \u0111\u1ec1 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\" id=\"l\u01b0u-l\u01b0\u1ee3ng-truy-c\u1eadp\"><span class=\"ez-toc-section\" id=\"Luu_luong_truy_cap\"><\/span>L\u01b0u l\u01b0\u1ee3ng truy c\u1eadp<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>N\u1ebfu TTFB c\u1ee7a b\u1ea1n v\u00e0 qu\u00e1 tr\u00ecnh x\u1eed l\u00fd t\u1ed5ng th\u1ec3 c\u1ee7a m\u00e1y ch\u1ee7 b\u1ecb ch\u1eadm, \u0111i\u1ec1u n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ed1 l\u01b0\u1ee3ng truy c\u1eadp t\u1ed1i \u0111a m\u00e1y ch\u1ee7 web c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 x\u1eed l\u00fd.<\/p>\n\n\n<p>B\u1eb1ng c\u00e1ch c\u1ea3i thi\u1ec7n ph\u01b0\u01a1ng th\u1ee9c m\u00e1y ch\u1ee7 web x\u1eed l\u00fd t\u1ea1o n\u1ed9i dung \u0111\u1ed9ng v\u00e0 c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7, b\u1ea1n s\u1ebd c\u00f3 kh\u1ea3 n\u0103ng x\u1eed l\u00fd nhi\u1ec1u l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp t\u1ed1t h\u01a1n v\u1edbi c\u00f9ng ph\u1ea7n c\u1ee9ng.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\" id=\"th\u1eddi-gian-ttfb-trung-binh-la-bao-nhieu\"><span class=\"ez-toc-section\" id=\"Thoi_gian_TTFB_trung_binh_la_bao_nhieu\"><\/span>Th\u1eddi gian TTFB trung b\u00ecnh l\u00e0 bao nhi\u00eau?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>R\u1ea5t kh\u00f3 \u0111\u1ec3 \u0111\u01b0a ra con s\u1ed1 ch\u00ednh x\u00e1c b\u1edfi v\u00ec c\u00f3 nhi\u1ec1u ho\u00e0n c\u1ea3nh, t\u00ecnh hu\u1ed1ng kh\u00e1c nhau, nh\u01b0ng n\u00f3i chung v\u1edbi trang web hi\u1ec7n \u0111\u1ea1i v\u00e0 gi\u1ea3 \u0111\u1ecbnh l\u00e0 b\u1ea1n \u0111ang ki\u1ec3m tra m\u1ed9t trang t\u1eeb c\u00f9ng khu v\u1ef1c \u0111\u1ecba l\u00fd n\u01a1i trang \u0111\u01b0\u1ee3c host&#8230;<\/p>\n\n\n<ul><li>D\u01b0\u1edbi 100 mili gi\u00e2y th\u00ec v\u00f4 c\u00f9ng tuy\u1ec7t v\u1eddi;<\/li><li>200 mili gi\u00e2y l\u00e0 l\u00fd t\u01b0\u1edfng;<\/li><li>500 mili gi\u00e2y l\u00e0 kh\u00f4ng \u1ed5n;<\/li><li>1 gi\u00e2y th\u00ec t\u1ec7 r\u1ed3i;<\/li><li>2 gi\u00e2y ho\u1eb7c h\u01a1n th\u00ec qu\u00e1 t\u1ec7.<\/li><\/ul>\n\n\n<p>Kho\u1ea3ng c\u00e1ch c\u00e0ng xa gi\u1eefa v\u1ecb tr\u00ed c\u1ee7a ng\u01b0\u1eddi ki\u1ec3m tra v\u00e0 m\u00e1y ch\u1ee7 web th\u00ec TTFB c\u00e0ng d\u00e0i do \u1ea3nh h\u01b0\u1edfng c\u1ee7a \u0111\u1ed9 tr\u1ec5.<\/p>\n\n\n<p>V\u00e0i th\u00f4ng s\u1ed1 \u0111\u1ec3 b\u1ea1n tham kh\u1ea3o, Google c\u00f3 100 mili gi\u00e2y TTFB, trang b\u1ea1n \u0111ang \u0111\u1ecdc \u0111\u00e2y c\u00f3 TTFB x\u1ea5p x\u1ec9 150 mili gi\u00e2y (trang c\u1ee7a Varvy, b\u00e0i g\u1ed1c ti\u1ebfng Anh c\u1ee7a b\u00e0i d\u1ecbch n\u00e0y). Google n\u00f3i r\u1eb1ng m\u00e1y ch\u1ee7 web n\u00ean c\u00f3 th\u1eddi gian ph\u1ea3n h\u1ed3i m\u00e1y ch\u1ee7 t\u1eeb 200 mili gi\u00e2y tr\u1edf xu\u1ed1ng.<\/p>\n\n\n<p><em>(D\u1ecbch t\u1eeb b\u00e0i vi\u1ebft: Time to First Byte (TTFB) \u2013 T\u00e1c gi\u1ea3: Patrick Sexton \u2013 Website: Varvy)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>TTFB l\u00e0 g\u00ec? \u0110\u00e2y l\u00e0 kho\u1ea3ng th\u1eddi gian m\u00e0 tr\u00ecnh duy\u1ec7t c\u1ea7n ph\u1ea3i \u0111\u1ee3i \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c ph\u1ea7n th\u00f4ng tin \u0111\u1ea7u ti\u00ean t\u1eeb m\u00e1y ch\u1ee7 web sau khi g\u1eedi y\u00eau c\u1ea7u nh\u1eadn n\u00f3; TTFB l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a &#8220;Time To First Byte&#8221;; N\u00f3 c\u00f3 th\u1ec3 l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y tr\u00ec ho\u00e3n \u0111\u00e1ng k\u1ec3 trong k\u1ebft &hellip;<\/p>\n","protected":false},"author":1,"featured_media":20439,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[282],"tags":[300],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ee7a m\u00e1y ch\u1ee7, hay TTFB l\u00e0 g\u00ec? &#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\/ttfb-la-gi\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ee7a m\u00e1y ch\u1ee7, hay TTFB l\u00e0 g\u00ec? &#8226; Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"og:description\" content=\"TTFB l\u00e0 g\u00ec? \u0110\u00e2y l\u00e0 kho\u1ea3ng th\u1eddi gian m\u00e0 tr\u00ecnh duy\u1ec7t c\u1ea7n ph\u1ea3i \u0111\u1ee3i \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c ph\u1ea7n th\u00f4ng tin \u0111\u1ea7u ti\u00ean t\u1eeb m\u00e1y ch\u1ee7 web sau khi g\u1eedi y\u00eau c\u1ea7u nh\u1eadn n\u00f3; TTFB l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a &#8220;Time To First Byte&#8221;; N\u00f3 c\u00f3 th\u1ec3 l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y tr\u00ec ho\u00e3n \u0111\u00e1ng k\u1ec3 trong k\u1ebft &hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/kiencang.net\/ttfb-la-gi\/\" \/>\n<meta property=\"og:site_name\" content=\"Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/anhducnguyen87\/\" \/>\n<meta property=\"article:published_time\" content=\"2019-02-27T08:39:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/02\/TTFB-la-gi.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Nguy\u1ec5n \u0110\u1ee9c Anh\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Nguy\u1ec5n \u0110\u1ee9c Anh\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"9 ph\u00fat\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ee7a m\u00e1y ch\u1ee7, hay TTFB l\u00e0 g\u00ec? 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