{"id":14183,"date":"2021-12-25T11:14:00","date_gmt":"2021-12-25T04:14:00","guid":{"rendered":"https:\/\/kiencang.net\/?p=14183"},"modified":"2021-12-25T11:14:00","modified_gmt":"2021-12-25T04:14:00","slug":"cong-cu-kiem-tra-toc-do-website","status":"publish","type":"post","link":"https:\/\/kiencang.net\/cong-cu-kiem-tra-toc-do-website\/","title":{"rendered":"14 c\u00f4ng c\u1ee5 ki\u1ec3m tra t\u1ed1c \u0111\u1ed9 website t\u00f4i th\u01b0\u1eddng d\u00f9ng"},"content":{"rendered":"\n<p>T\u1ed1c \u0111\u1ed9 trang web kh\u00f4ng ch\u1ec9 c\u00f3 m\u1ed7i ch\u1ec9 s\u1ed1 &#8220;trang web c\u1ee7a t\u00f4i t\u1ea3i ch\u01b0a \u0111\u1ebfn x, y, z gi\u00e2y n\u00e0o \u0111\u00f3&#8221;. C\u00f2n c\u00f3 nhi\u1ec1u y\u1ebfu t\u1ed1 kh\u00e1c m\u00e0 b\u1ea1n c\u1ea7n xem x\u00e9t.<\/p>\n\n\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 danh s\u00e1ch c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 d\u1ecbch v\u1ee5 t\u00f4i th\u01b0\u1eddng s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 ho\u1eb7c ki\u1ec3m tra t\u1ed1c \u0111\u1ed9 trang WordPress. Kh\u00f4ng ch\u1ec9 WordPress, ch\u00fang c\u00f2n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 b\u1ea5t k\u1ef3 website n\u00e0o.<\/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-6577d66506f1b\" ><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-6577d66506f1b\"  type=\"checkbox\" id=\"item-6577d66506f1b\"><\/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\/cong-cu-kiem-tra-toc-do-website\/#1_Mat_cua_ban\" title=\"1. M\u1eaft c\u1ee7a b\u1ea1n\">1. M\u1eaft 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-2\" href=\"https:\/\/kiencang.net\/cong-cu-kiem-tra-toc-do-website\/#2_Chrome_Developer_Tools\" title=\"2. Chrome Developer Tools\">2. Chrome Developer Tools<\/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\/cong-cu-kiem-tra-toc-do-website\/#3_Google_PageSpeed_Insights\" title=\"3. Google PageSpeed Insights\">3. Google PageSpeed Insights<\/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\/cong-cu-kiem-tra-toc-do-website\/#4_Cong_cu_phan_tich_GTmetrix\" title=\"4. C\u00f4ng c\u1ee5 ph\u00e2n t\u00edch GTmetrix\">4. C\u00f4ng c\u1ee5 ph\u00e2n t\u00edch GTmetrix<\/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\/cong-cu-kiem-tra-toc-do-website\/#5_GTmetrix_monitor\" title=\"5. GTmetrix monitor\">5. GTmetrix monitor<\/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\/cong-cu-kiem-tra-toc-do-website\/#6_Pingdom_Speed_Test\" title=\"6. Pingdom Speed Test\">6. Pingdom Speed Test<\/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\/cong-cu-kiem-tra-toc-do-website\/#7_Pingdom_Monitoring\" title=\"7. Pingdom Monitoring\">7. Pingdom Monitoring<\/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\/cong-cu-kiem-tra-toc-do-website\/#8_WebPageTest\" title=\"8. WebPageTest\">8. WebPageTest<\/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\/cong-cu-kiem-tra-toc-do-website\/#9_Cong_cu_kiem_tra_hieu_suat_cua_KeyCDN\" title=\"9. C\u00f4ng c\u1ee5 ki\u1ec3m tra hi\u1ec7u su\u1ea5t c\u1ee7a KeyCDN\">9. C\u00f4ng c\u1ee5 ki\u1ec3m tra hi\u1ec7u su\u1ea5t c\u1ee7a KeyCDN<\/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\/cong-cu-kiem-tra-toc-do-website\/#10_Uptime_Robot\" title=\"10. Uptime Robot\">10. Uptime Robot<\/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\/cong-cu-kiem-tra-toc-do-website\/#11_Google_Analytics_phan_tich_toc_do_website\" title=\"11. Google Analytics ph\u00e2n t\u00edch t\u1ed1c \u0111\u1ed9 website\">11. Google Analytics ph\u00e2n t\u00edch t\u1ed1c \u0111\u1ed9 website<\/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\/cong-cu-kiem-tra-toc-do-website\/#12_Loaderio\" title=\"12. Loader.io\">12. Loader.io<\/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\/cong-cu-kiem-tra-toc-do-website\/#13_Dotcom-tools\" title=\"13. Dotcom-tools\">13. Dotcom-tools<\/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\/cong-cu-kiem-tra-toc-do-website\/#14_Lighthouse\" title=\"14. Lighthouse\">14. Lighthouse<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Mat_cua_ban\"><\/span>1. M\u1eaft c\u1ee7a b\u1ea1n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>\u0110\u1eebng hi\u1ec3u l\u1ea7m t\u00f4i, t\u00f4i kh\u00f4ng c\u00f3 \u00fd \u0111\u00f9a c\u1ee3t g\u00ec \u0111\u00e2u.<\/p>\n\n\n<p>\u0110\u1ec3 t\u00f4i d\u1eabn m\u1ed9t v\u00ed d\u1ee5 nh\u00e9, <a href=\"https:\/\/kiencang.net\/plugin-flying-pages\/\" target=\"_blank\" rel=\"noreferrer noopener\">plugin Flying Pages<\/a> gi\u00fap b\u1ea1n t\u00ecm n\u1ea1p tr\u01b0\u1edbc (<a href=\"https:\/\/kiencang.net\/link-prefetch\/\" target=\"_blank\" rel=\"noreferrer noopener\">s\u1eed d\u1ee5ng th\u1ebb link prefetch<\/a>) c\u00e1c trang n\u1ed9i b\u1ed9 trong background v\u00e0 t\u1ea3i trang ngay l\u1eadp t\u1ee9c khi ng\u01b0\u1eddi d\u00f9ng \u0111i\u1ec1u h\u01b0\u1edbng \u0111\u1ebfn (trang \u0111\u00e3 t\u00ecm n\u1ea1p). \u0110i\u1ec1u \u0111\u00f3 \u0111em l\u1ea1i tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng t\u1ed1t h\u01a1n r\u1ea5t nhi\u1ec1u.<\/p>\n\n\n<p>T\u00f4i kh\u00f4ng th\u1ea5y c\u00f4ng c\u1ee5 n\u00e0o c\u00f3 kh\u1ea3 n\u0103ng \u0111o \u0111\u1ea1c \u0111i\u1ec1u \u0111\u00f3.<\/p>\n\n\n<p>D\u00f9 c\u00e1c c\u00f4ng c\u1ee5 b\u1ea1n \u0111ang d\u00f9ng c\u00f3 \u0111\u01b0a ra \u0111i\u1ec3m s\u1ed1 ho\u00e0n h\u1ea3o, v\u00e0 website c\u1ee7a b\u1ea1n ch\u1ec9 t\u1ea3i trong v\u00e0i tr\u0103m mili gi\u00e2y th\u00f4i, h\u00e3y lu\u00f4n c\u1ea9n th\u1eadn ki\u1ec3m tra l\u1ea1i trang b\u1eb1ng \u0111\u00f4i m\u1eaft tr\u1ea7n.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Chrome_Developer_Tools\"><\/span>2. Chrome Developer Tools<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>Google Chrome Developer Tools c\u00f3 m\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 ti\u1ec7n d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 website. M\u1edf c\u00f4ng c\u1ee5 d\u00e0nh cho nh\u00e0 ph\u00e1t tri\u1ec3n n\u00e0y b\u1eb1ng c\u00e1ch nh\u1ea5n t\u1ed5 h\u1ee3p ph\u00edm <em>Ctrl + Shift + I<\/em> (Windows) ho\u1eb7c <em>Ctrl + Opt + J<\/em> (MacOS)<\/p>\n\n\n<h3 class=\"wp-block-heading\">2.1. Theo d\u00f5i m\u1ea1ng<\/h3>\n\n\n<p>Theo d\u00f5i m\u1ea1ng (network monitor) \u0111\u01b0a ra c\u00e1i nh\u00ecn chi ti\u1ebft v\u1ec1 t\u1ea5t c\u1ea3 c\u00e1c request (y\u00eau c\u1ea7u) \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1edfi tr\u00ecnh duy\u1ec7t, c\u00e1c ph\u1ea3n h\u1ed3i c\u1ee7a n\u00f3, th\u1eddi gian, v\u00e2n v\u00e2n.<\/p>\n\n\n<ul><li>Tr\u1ea1ng th\u00e1i (Status) &#8211; Gi\u00fap d\u1ec5 d\u00e0ng ph\u00e1t hi\u1ec7n ra b\u1ea5t k\u1ef3 t\u00e0i nguy\u00ean n\u00e0o hi\u1ec7n kh\u00f4ng kh\u1ea3 d\u1ee5ng;<\/li><li>Giao th\u1ee9c (Protocol) &#8211; Ki\u1ec3m tra xem \u0111\u00f3 l\u00e0 giao th\u1ee9c HTTP1.1, HTTP2, Quic, v\u00e2n v\u00e2n;<\/li><li>Ki\u1ec3u (Type) &#8211; \u0110\u1ecbnh d\u1ea1ng file tr\u1ea3 v\u1ec1, gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng ph\u00e1t hi\u1ec7n xem <a href=\"https:\/\/kiencang.net\/dinh-dang-anh-webp\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u0111\u1ecbnh d\u1ea1ng \u1ea3nh WebP<\/a> c\u00f3 \u0111ang ho\u1ea1t \u0111\u1ed9ng hay kh\u00f4ng;<\/li><li>Dung l\u01b0\u1ee3ng (Size) &#8211; L\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u01b0u chuy\u1ec3n, khi c\u00f3 v\u00e0 kh\u00f4ng c\u00f3 <a href=\"https:\/\/kiencang.net\/bat-nen-gzip\/\" target=\"_blank\" rel=\"noreferrer noopener\">n\u00e9n Gzip<\/a>. &#8220;Disk cache&#8221; ho\u1eb7c &#8220;Memory Cache&#8221; ch\u1ec9 ra r\u1eb1ng <a href=\"https:\/\/kiencang.net\/bo-nho-dem-trinh-duyet\/\" target=\"_blank\" rel=\"noreferrer noopener\">cache ph\u00eda tr\u00ecnh duy\u1ec7t<\/a> \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/li><li>\u01afu ti\u00ean (Priority) &#8211; M\u1ee9c \u0111\u1ed9 \u01b0u ti\u00ean c\u1ee7a t\u1eebng file m\u00e0 tr\u00ecnh duy\u1ec7t y\u00eau c\u1ea7u. CSS, JS, Fonts c\u00f3 m\u1ee9c \u0111\u1ed9 \u01b0u ti\u00ean cao, \u1ea3nh th\u00ec th\u1ea5p h\u01a1n, SendBeacon (v\u00ed d\u1ee5: Google Analytics), prefetch (v\u00ed d\u1ee5: plugin Flying Pages) c\u00f3 m\u1ee9c \u0111\u1ed9 \u01b0u ti\u00ean th\u1ea5p nh\u1ea5t.<\/li><li>Waterfall &#8211; <a href=\"https:\/\/kiencang.net\/waterfall-toc-do-website\/\" target=\"_blank\" rel=\"noreferrer noopener\">B\u1ea3ng waterfall<\/a> c\u00e1c y\u00eau c\u1ea7u v\u00e0 d\u1eef li\u1ec7u nh\u1eadn \u0111\u01b0\u1ee3c. N\u00f3 c\u0169ng \u0111\u01b0a ra c\u00e1i nh\u00ecn s\u00e2u h\u01a1n v\u1ec1 d\u1eef li\u1ec7u <a href=\"https:\/\/kiencang.net\/toi-thieu-thoi-gian-tra-cuu-dns\/\" target=\"_blank\" rel=\"noreferrer noopener\">t\u00ecm ki\u1ebfm DNS<\/a>, k\u1ebft n\u1ed1i TCP, SSL, TTFB, v\u00e2n v\u00e2n. Ngo\u00e0i ra gi\u00fap b\u1ea1n th\u00e1o g\u1ee1 v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn <a href=\"https:\/\/kiencang.net\/plugin-flying-images\/\" target=\"_blank\" rel=\"noreferrer noopener\">lazy loading<\/a> (xem th\u00eam <a href=\"https:\/\/kiencang.net\/lazy-load-anh-va-video\/\" target=\"_blank\" rel=\"noreferrer noopener\">c\u01a1 s\u1edf l\u00fd thuy\u1ebft v\u1ec1 lazy load \u1ea3nh \u1edf \u0111\u00e2y<\/a>)<\/li><\/ul>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/waterfall.png\" alt=\"waterfall trong devtools\" class=\"wp-image-14184\"\/><\/figure><\/div>\n\n\n<h3 class=\"wp-block-heading\">2.2. Audits<\/h3>\n\n\n<p>Ki\u1ec3m tra hi\u1ec7u su\u1ea5t c\u1ee7a trang web, PWA, c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t, kh\u1ea3 n\u0103ng truy c\u1eadp v\u00e0 SEO. B\u1ea1n c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb (m\u00e1y b\u00e0n, di \u0111\u1ed9ng) v\u00e0 \u0111i\u1ec1u ch\u1ec9nh t\u1ed1c \u0111\u1ed9 m\u1ea1ng, c\u0169ng nh\u01b0 CPU.<\/p>\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 &#8220;Lighthouse&#8221; m\u00e0 t\u00f4i \u0111\u1ec1 c\u1eadp d\u01b0\u1edbi \u0111\u00e2y (m\u1ee5c 14) \u0111\u1ec3 thu \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 t\u01b0\u01a1ng t\u1ef1.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/audit.png\" alt=\"c\u00f4ng c\u1ee5 audit trong devtools\" class=\"wp-image-14185\"\/><\/figure><\/div>\n\n\n<h3 class=\"wp-block-heading\">2.3. Security<\/h3>\n\n\n<p>B\u1ea3o m\u1eadt (security) c\u00f3 m\u1ed1i quan h\u1ec7 nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ebfn hi\u1ec7u su\u1ea5t?<\/p>\n\n\n<p>Phi\u00ean b\u1ea3n TLS c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn <a href=\"https:\/\/kiencang.net\/giam-ttfb-trong-wordpress\/\" target=\"_blank\" rel=\"noreferrer noopener\">TTFB<\/a>. Phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t hi\u1ec7n nay l\u00e0 TLS 1.3<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/TLS-1.3.png\" alt=\"TLS 1.3\" class=\"wp-image-14186\"\/><\/figure><\/div>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Google_PageSpeed_Insights\"><\/span>3. Google PageSpeed Insights<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p><a href=\"https:\/\/developers.google.com\/speed\/pagespeed\/insights\/\" target=\"_blank\" rel=\"noreferrer noopener\">Google PageSpeed Insights<\/a> l\u00e0 m\u1ed9t trong c\u00e1c c\u00f4ng c\u1ee5 \u01b0a th\u00edch c\u1ee7a t\u00f4i (xem th\u00eam h\u01b0\u1edbng d\u1eabn <a href=\"https:\/\/kiencang.net\/tang-toc-web-pagespeed-insights\/\" target=\"_blank\" rel=\"noreferrer noopener\">c\u00e1ch d\u00f9ng PageSpeed Insights \u1edf \u0111\u00e2y<\/a>). \u0110i\u1ec1u m\u00e0 t\u00f4i th\u00edch \u1edf c\u00f4ng c\u1ee5 n\u00e0y l\u00e0 thay v\u00ec ch\u1ec9 t\u1eadp trung v\u00e0o &#8220;th\u1eddi gian t\u1ea3i&#8221;, n\u00f3 c\u00f2n \u0111o l\u01b0\u1eddng tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng n\u1eefa.<\/p>\n\n\n<p>M\u1ed9t s\u1ed1 ng\u01b0\u1eddi than phi\u1ec1n r\u1eb1ng n\u00f3 kh\u00f4ng hi\u1ec3n th\u1ecb th\u1eddi gian t\u1ea3i to\u00e0n trang (fully loaded time). T\u00f4i tin r\u1eb1ng Google kh\u00f4ng hi\u1ec3n th\u1ecb n\u00f3 b\u1edfi v\u00ec \u0111i\u1ec1u \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 c\u00e1ch th\u1ee9c t\u1ed1t \u0111\u1ec3 \u0111o l\u01b0\u1eddng t\u1ed1c \u0111\u1ed9 website.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/kiem-tra-Google-PageSpeed-Insights.png\" alt=\"ki\u1ec3m tra b\u1eb1ng Google PageSpeed Insights\" class=\"wp-image-14187\"\/><\/figure><\/div>\n\n\n<p>M\u1ed9t trang kh\u00e1c c\u00f3 t\u1ed1c \u0111\u1ed9 t\u1ed1t h\u01a1n:<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/04\/chim-cat-diem-cao-1024x431.png\" alt=\"trang Chim c\u1eaft c\u00f3 t\u1ed1c \u0111\u1ed9 t\u1ed1t h\u01a1n\" class=\"wp-image-16070\"\/><\/figure><\/div>\n\n\n<p>Google PSI l\u00e0 m\u1ed9t trong c\u00e1c c\u00f4ng c\u1ee5 t\u1ed1t nh\u1ea5t \u0111\u1ec3 ph\u00e2n t\u00edch:<\/p>\n\n\n<ul><li><a href=\"https:\/\/kiencang.net\/ttfb-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">TTFB &#8211; Time to First Byte<\/a> (th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ee7a m\u00e1y ch\u1ee7)<\/li><li><a href=\"https:\/\/kiencang.net\/first-contentful-paint-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">FCP &#8211; First Contentful Paint<\/a> \/ Th\u1eddi gian ph\u1ea3n h\u1ed3i khi ng\u01b0\u1eddi d\u00f9ng nh\u00ecn th\u1ea5y h\u00ecnh \u1ea3nh c\u00f3 n\u1ed9i dung \u0111\u1ea7u ti\u00ean<\/li><li>FMP &#8211; First Meaningful Paint \/ Th\u1eddi gian ph\u1ea3n h\u1ed3i khi ng\u01b0\u1eddi d\u00f9ng nh\u00ecn th\u1ea5y h\u00ecnh \u1ea3nh c\u00f3 \u00fd ngh\u0129a \u0111\u1ea7u ti\u00ean<\/li><li><a href=\"https:\/\/kiencang.net\/time-to-interactive-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">TTI &#8211; Time to Interactive<\/a> \/ Th\u1eddi \u0111i\u1ec3m ng\u01b0\u1eddi d\u00f9ng c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c<\/li><\/ul>\n\n\n<p>v\u00e0 nhi\u1ec1u ch\u1ec9 s\u1ed1 kh\u00e1c n\u1eefa.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Cong_cu_phan_tich_GTmetrix\"><\/span>4. C\u00f4ng c\u1ee5 ph\u00e2n t\u00edch GTmetrix<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p><a href=\"https:\/\/gtmetrix.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">GTmetrix<\/a> s\u1ebd ph\u00e2n t\u00edch website c\u1ee7a b\u1ea1n v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0a ra l\u1eddi khuy\u00ean c\u00e1c ch\u1ed7 c\u1ea7n s\u1eeda ch\u1eefa. C\u0169ng v\u1eady, n\u00f3 s\u1ebd \u0111\u01b0a ra m\u1ed9t v\u00e0i \u0111i\u1ec3m s\u1ed1 v\u00e0 th\u1eddi gian t\u1ea3i to\u00e0n trang. B\u1ea1n c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn khu v\u1ef1c \u0111\u1ecba l\u00fd, thi\u1ebft b\u1ecb, tr\u00ecnh duy\u1ec7t \u0111\u1ec3 th\u1ef1c hi\u1ec7n ki\u1ec3m tra.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/GTmetrix-1.png\" alt=\"ki\u1ec3m tra b\u1eb1ng GTmetrix\" class=\"wp-image-14188\"\/><\/figure><\/div>\n\n\n<p>GTmetrix \u0111\u01b0a ra b\u1ea3ng Waterfall c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c request \u0111\u1ebfn website, c\u00e1i m\u00e0 t\u00f4i th\u1ea5y r\u1eb1ng r\u1ea5t h\u1eefu \u00edch.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/waterfall-GTmetrix-kc.png\" alt=\"b\u1ea3ng Waterfall tr\u00ean GTmetrix\" class=\"wp-image-14189\"\/><\/figure><\/div>\n\n\n<p>H\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi ch\u1ec9 \u0111\u1ec3 \u00fd \u0111\u1ebfn \u0111i\u1ec3m s\u1ed1 v\u00e0 th\u1eddi gian t\u1ea3i to\u00e0n trang, nh\u01b0ng c\u00e1c y\u1ebfu t\u1ed1 m\u00e0 t\u00f4i ch\u1ee7 y\u1ebfu xem x\u00e9t n\u1eb1m trong tab &#8220;Timing&#8221;:<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/tab-timings.png\" alt=\"tab timing trong GTmetrix\" class=\"wp-image-14190\"\/><\/figure><\/div>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_GTmetrix_monitor\"><\/span>5. GTmetrix monitor<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>GTmetrix c\u0169ng c\u00f3 th\u00eam t\u00ednh n\u0103ng th\u00fa v\u1ecb l\u00e0 \u0111\u1ecbnh k\u1ef3 ki\u1ec3m tra website c\u1ee7a b\u1ea1n v\u00e0 g\u1eedi cho b\u1ea1n b\u1ea3n t\u00f3m t\u1eaft h\u00e0ng tu\u1ea7n. T\u00f4i kh\u00f4ng c\u1ea7n ph\u1ea3i ki\u1ec3m tra \u0111i ki\u1ec3m tra l\u1ea1i trang web khi t\u00f4i c\u1eadp nh\u1eadt \u0111i\u1ec1u g\u00ec \u0111\u00f3 tr\u00ean trang.<\/p>\n\n\n<p>G\u00f3i mi\u1ec5n ph\u00ed c\u1ee7a h\u1ecd (Basic plan) cho ph\u00e9p theo d\u00f5i (monitor) 3 URL.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/theo-doi-dinh-ky-website.png\" alt=\"theo d\u00f5i \u0111\u1ecbnh k\u1ef3 website\" class=\"wp-image-14191\"\/><\/figure><\/div>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Pingdom_Speed_Test\"><\/span>6. Pingdom Speed Test<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p><a href=\"https:\/\/tools.pingdom.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Pingdom Speed Test<\/a> l\u00e0 c\u00f4ng c\u1ee5 mi\u1ec5n ph\u00ed c\u1ee7a SolarWinds. N\u00f3 r\u1ea5t gi\u1ed1ng v\u1edbi GTmetrix, cung c\u1ea5p cho b\u1ea1n b\u1ea3n b\u00e1o c\u00e1o v\u1edbi c\u00e1c \u0111i\u1ec3m s\u1ed1 v\u00e0 th\u1eddi gian t\u1ea3i.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/pingdom-cham-diem.png\" alt=\"Pingdom ch\u1ea5m \u0111i\u1ec3m\" class=\"wp-image-14194\"\/><\/figure><\/div>\n\n\n<p>\u0110i\u1ec3m m\u00e0 t\u00f4i y\u00eau th\u00edch \u1edf c\u00f4ng c\u1ee5 n\u00e0y l\u00e0 n\u00f3 hi\u1ec3n th\u1ecb k\u00edch c\u1ee1 v\u00e0 s\u1ed1 l\u01b0\u1ee3ng c\u1ee7a t\u1eebng y\u00eau c\u1ea7u theo m\u1ed7i t\u00ean mi\u1ec1n, \u0111\u1ecbnh d\u1ea1ng file. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p b\u1ea1n nhanh ch\u00f3ng bi\u1ebft \u0111\u01b0\u1ee3c c\u1ea7n t\u1ed1i \u01b0u \u1edf ph\u1ea7n n\u00e0o.<\/p>\n\n\n<div class=\"wp-block-image wp-image-14192 size-full\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/kich-co-theo-ten-mien.png\" alt=\"ph\u00e2n lo\u1ea1i k\u00edch c\u1ee1 t\u00e0i nguy\u00ean theo t\u00ean mi\u1ec1n\" class=\"wp-image-14192\"\/><figcaption>Ph\u00e2n lo\u1ea1i k\u00edch c\u1ee1 t\u00e0i nguy\u00ean theo t\u00ean mi\u1ec1n<\/figcaption><\/figure><\/div>\n\n\n<div class=\"wp-block-image wp-image-14193 size-full\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/request-theo-ten-mien.png\" alt=\"ph\u00e2n lo\u1ea1i s\u1ed1 l\u01b0\u1ee3ng request theo t\u00ean mi\u1ec1n\" class=\"wp-image-14193\"\/><figcaption>Ph\u00e2n lo\u1ea1i s\u1ed1 l\u01b0\u1ee3ng request theo t\u00ean mi\u1ec1n<\/figcaption><\/figure><\/div>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7_Pingdom_Monitoring\"><\/span>7. Pingdom Monitoring<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>Li\u1ec7u m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n c\u00f3 thi tho\u1ea3ng b\u1ecb s\u1eadp ho\u1eb7c website c\u1ee7a b\u1ea1n kh\u00f4ng th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c v\u1edbi m\u1ed9t s\u1ed1 ng\u01b0\u1eddi d\u00f9ng khi l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp t\u0103ng cao?<\/p>\n\n\n<p><a href=\"https:\/\/www.pingdom.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Pingdom<\/a> l\u00e0 c\u00f4ng ty \u0111o \u0111\u1ea1c &#8220;hi\u1ec7u su\u1ea5t website v\u00e0 h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t&#8221;. Pingdom monitor s\u1ebd li\u00ean t\u1ee5c gi\u00e1m s\u00e1t (t\u00f9y theo l\u1ef1a ch\u1ecdn c\u1ee7a b\u1ea1n l\u00e0 5 ph\u00fat hay 30 gi\u00e2y m\u1ed9t l\u1ea7n) v\u00e0 s\u1ebd th\u00f4ng b\u00e1o cho b\u1ea1n bi\u1ebft n\u1ebfu c\u00f3 v\u1ea5n \u0111\u1ec1 g\u00ec \u0111\u00f3 b\u1ea5t th\u01b0\u1eddng.<\/p>\n\n\n<p>D\u1ecbch v\u1ee5 n\u00e0y kh\u00f4ng c\u00f3 g\u00f3i mi\u1ec5n ph\u00ed. G\u00f3i tr\u1ea3 ph\u00ed c\u00f3 gi\u00e1 t\u1eeb 14,95$ \/ th\u00e1ng (th\u1eadt l\u00e0 ch\u00e1t h\u01a1n c\u00e0 ph\u00ea).<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/uptime-cua-pingdom.png\" alt=\"uptime c\u1ee7a pingdom\" class=\"wp-image-14197\"\/><\/figure><\/div>\n\n\n<p>N\u1ebfu b\u1ea1n mu\u1ed1n <a href=\"https:\/\/kiencang.net\/theo-doi-up-time-website\/\" target=\"_blank\" rel=\"noreferrer noopener\">t\u00ecm hi\u1ec3u c\u00e1c d\u1ecbch v\u1ee5 ki\u1ec3m tra uptime<\/a> kh\u00e1c c\u00f3 gi\u00e1 th\u00e0nh th\u00e2n thi\u1ec7n h\u01a1n ho\u1eb7c mi\u1ec5n ph\u00ed, b\u1ea1n c\u00f3 th\u1ec3 truy c\u1eadp li\u00ean k\u1ebft v\u1eeba d\u1eabn.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"8_WebPageTest\"><\/span>8. WebPageTest<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p><a href=\"https:\/\/www.webpagetest.org\/\" target=\"_blank\" rel=\"noreferrer noopener\">WebPageTest<\/a> l\u00e0 m\u1ed9t trong c\u00e1c c\u00f4ng c\u1ee5 ra \u0111\u1eddi s\u1edbm nh\u1ea5t v\u00e0 \u0111\u00e1ng tin c\u1eady nh\u1ea5t (r\u1ea5t nhi\u1ec1u t\u00e1c gi\u1ea3 chuy\u00ean v\u1ec1 t\u1ed1i \u01b0u, bao g\u1ed3m c\u1ea3 nh\u1eefng ng\u01b0\u1eddi l\u00e0m cho Google r\u1ea5t th\u00edch d\u00f9ng c\u00f4ng c\u1ee5 n\u00e0y, khi n\u00e0o c\u00f3 th\u1eddi gian, t\u00f4i (ng\u01b0\u1eddi d\u1ecbch) s\u1ebd vi\u1ebft m\u1ed9t b\u00e0i h\u01b0\u1edbng d\u1eabn chi ti\u1ebft). V\u1edbi kh\u1ea3 n\u0103ng ki\u1ec3m tra website c\u1ee7a b\u1ea1n nhi\u1ec1u l\u1ea7n t\u1eeb c\u00f9ng m\u1ed9t thi\u1ebft b\u1ecb. N\u00f3 r\u1ea5t c\u00f3 \u00edch khi b\u1ea1n mu\u1ed1n xem ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 c\u1ee7a &#8220;<a href=\"https:\/\/kiencang.net\/bo-nho-dem-trinh-duyet\/\" target=\"_blank\" rel=\"noreferrer noopener\">cache ph\u00eda tr\u00ecnh duy\u1ec7t<\/a>&#8220;. WebPageTest c\u0169ng cung c\u1ea5p m\u1ed9t s\u1ed1 ch\u1ec9 s\u1ed1 quan tr\u1ecdng nh\u01b0 TTFB, keep-alive, n\u00e9n (compression), cache ph\u00eda tr\u00ecnh duy\u1ec7t (browser caching), <a href=\"https:\/\/kiencang.net\/category\/cdn\/\" target=\"_blank\" rel=\"noreferrer noopener\">CDN<\/a>, v\u00e2n v\u00e2n.<\/p>\n\n\n<p>T\u00f4i kh\u00f4ng th\u00edch giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng c\u1ee7a h\u1ecd cho l\u1eafm, v\u00ec th\u1ebf t\u00f4i (t\u00e1c gi\u1ea3 g\u1ed1c b\u00e0i ti\u1ebfng Anh n\u00e0y) kh\u00f4ng s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 n\u00e0y th\u01b0\u1eddng xuy\u00ean.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"9_Cong_cu_kiem_tra_hieu_suat_cua_KeyCDN\"><\/span>9. C\u00f4ng c\u1ee5 ki\u1ec3m tra hi\u1ec7u su\u1ea5t c\u1ee7a KeyCDN<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>H\u1ea7u h\u1ebft c\u00f4ng c\u1ee5 m\u00e0 t\u00f4i li\u1ec7t k\u00ea \u1edf tr\u00ean s\u1ebd ki\u1ec3m tra <a href=\"https:\/\/kiencang.net\/ttfb-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">TTFB (time to fist byte hay th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ee7a m\u00e1y ch\u1ee7)<\/a> t\u1eeb m\u1ed9t v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd duy nh\u1ea5t. <a href=\"https:\/\/tools.keycdn.com\/performance\" target=\"_blank\" rel=\"noreferrer noopener\">C\u00f4ng c\u1ee5 ki\u1ec3m tra hi\u1ec7u su\u1ea5t c\u1ee7a KeyCDN<\/a> s\u1ebd ph\u00e2n t\u00edch trang c\u1ee7a b\u1ea1n t\u1eeb 14 v\u00f9ng \u0111\u1ecba l\u00fd kh\u00e1c nhau ch\u1ec9 v\u1edbi m\u1ed9t click v\u00e0 cung c\u1ea5p m\u1ed9t b\u00e1o c\u00e1o v\u1ec1 <a href=\"https:\/\/kiencang.net\/toi-thieu-thoi-gian-tra-cuu-dns\/\" target=\"_blank\" rel=\"noreferrer noopener\">th\u1eddi gian t\u00ecm ki\u1ebfm DNS<\/a>, k\u1ebft n\u1ed1i, TLS v\u00e0 TTFB.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/TTFB-KeyCDN.png\" alt=\"c\u00f4ng c\u1ee5 ki\u1ec3m tra TTFB c\u1ee7a KeyCDN\" class=\"wp-image-14138\"\/><\/figure><\/div>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"10_Uptime_Robot\"><\/span>10. Uptime Robot<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>T\u01b0\u01a1ng t\u1ef1 nh\u01b0 d\u1ecbch v\u1ee5 Pingdom Monitoring, <a href=\"https:\/\/uptimerobot.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Uptime Robot<\/a> gi\u00e1m s\u00e1t trang web c\u1ee7a b\u1ea1n \u0111\u1ec3 xem n\u00f3 c\u00f3 b\u1ecb downtime (gi\u00e1n \u0111o\u1ea1n) hay kh\u00f4ng v\u00e0 s\u1ebd g\u1eedi c\u1ea3nh b\u00e1o cho b\u1ea1n n\u1ebfu \u0111i\u1ec1u \u0111\u00f3 x\u1ea3y ra.<\/p>\n\n\n<p>G\u00f3i mi\u1ec5n ph\u00ed cho ph\u00e9p t\u1ea7n s\u1ed1 gi\u00e1m s\u00e1t l\u00e0 5 ph\u00fat (ngh\u0129a l\u00e0 c\u1ee9 5 ph\u00fat l\u1ea1i ki\u1ec3m tra m\u1ed9t l\u1ea7n).<\/p>\n\n\n<blockquote class=\"wp-block-quote\"><p>T\u00f4i khuy\u1ebfn kh\u00edch b\u1ea1n <a href=\"https:\/\/kiencang.net\/theo-doi-up-time-website\/\" target=\"_blank\" rel=\"noreferrer noopener\">s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 theo d\u00f5i uptime c\u1ee7a hosting\/server<\/a>, \u0111\u1eb7c bi\u1ec7t n\u1ebfu b\u1ea1n \u0111ang s\u1eed d\u1ee5ng share hosting (c\u00e1i c\u00f3 ti\u1ec1m n\u0103ng d\u1ec5 b\u1ecb downtime nh\u1ea5t).<\/p><\/blockquote>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/uptime-robot-dashboard.png\" alt=\"d\u1ecbch v\u1ee5 gi\u00e1m s\u00e1t c\u1ee7a Uptime Robot\" class=\"wp-image-14198\"\/><\/figure><\/div>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"11_Google_Analytics_phan_tich_toc_do_website\"><\/span>11. Google Analytics ph\u00e2n t\u00edch t\u1ed1c \u0111\u1ed9 website<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>Google Analytics s\u1eed d\u1ee5ng HTML5 Navagation Timing API \u0111\u1ec3 thu th\u1eadp c\u00e1c ch\u1ec9 s\u1ed1 v\u1ec1 hi\u1ec7u su\u1ea5t t\u1eeb 1% ng\u01b0\u1eddi d\u00f9ng c\u1ee7a b\u1ea1n. B\u1ea1n c\u00f3 th\u1ec3 xem th\u00f4ng s\u1ed1 n\u00e0y b\u00ean d\u01b0\u1edbi tab <em>Behaviour &gt; Site Speed<\/em>.<\/p>\n\n\n<p>\u0110i\u1ec1u \u0111\u1eb7c bi\u1ec7t v\u1ec1 GA Site Speed l\u00e0 <a href=\"https:\/\/kiencang.net\/cach-do-toc-do-website\/\" target=\"_blank\" rel=\"noreferrer noopener\">d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c thu th\u1eadp \u0111\u01b0\u1ee3c \u0111\u1ebfn t\u1eeb ng\u01b0\u1eddi d\u00f9ng th\u1ef1c (field data)<\/a>. T\u1ea5t c\u1ea3 c\u00e1c c\u00f4ng c\u1ee5 kh\u00e1c s\u1eed d\u1ee5ng m\u1ea1ng c\u00f3 t\u1ed1c \u0111\u1ed9 cao ho\u1eb7c m\u1ea1ng gi\u1ea3 l\u1eadp (emaulated, c\u00f3 th\u1ec3 d\u1ecbch l\u00e0 m\u00f4 ph\u1ecfng c\u0169ng \u0111\u01b0\u1ee3c) \u0111\u1ec3 th\u1ef1c hi\u1ec7n ki\u1ec3m tra, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 th\u1ec3 c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 so v\u1edbi ng\u01b0\u1eddi d\u00f9ng th\u1ef1c. \u0110i\u1ec1u g\u00ec x\u1ea3y ra n\u1ebfu ph\u1ea7n l\u1edbn ng\u01b0\u1eddi d\u00f9ng c\u1ee7a b\u1ea1n v\u1eabn s\u1eed d\u1ee5ng m\u1ea1ng 3G ch\u1ee9 kh\u00f4ng ph\u1ea3i c\u00e1p quang?<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/kiem-tra-toc-do-GA.png\" alt=\"C\u00f4ng c\u1ee5 ki\u1ec3m tra t\u1ed1c \u0111\u1ed9 c\u1ee7a Google Analytics\" class=\"wp-image-14199\"\/><\/figure><\/div>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"12_Loaderio\"><\/span>12. Loader.io<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>Chuy\u1ec7n g\u00ec x\u1ea3y n\u1ebfu m\u1ed9t trong c\u00e1c <a href=\"https:\/\/kiencang.net\/viral-content\/\" target=\"_blank\" rel=\"noreferrer noopener\">b\u00e0i \u0111\u0103ng blog c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c viral<\/a>? B\u1ea1n c\u00f3 ch\u1eafc r\u1eb1ng <a href=\"https:\/\/kiencang.net\/mua-hosting-cho-wordpress\/\" target=\"_blank\" rel=\"noreferrer noopener\">server\/hosting<\/a> c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 x\u1eed l\u00fd \u0111\u01b0\u1ee3c? B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m m\u1ea5t m\u1ed9t l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng l\u1edbn v\u00e0 l\u00e0m \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn SEO m\u00e0 b\u1ea1n kh\u00f4ng h\u1ec1 hay bi\u1ebft.<\/p>\n\n\n<p>\u0110\u1eebng gi\u1ea3 \u0111\u1ecbnh v\u00e0 tin v\u00e0o c\u00e1c l\u1eddi qu\u1ea3ng c\u00e1o h\u1ee9a h\u1eb9n kh\u1ea3 n\u0103ng x\u1eed l\u00fd l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp kh\u00f4ng gi\u1edbi h\u1ea1n (unlimted traffic) c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 hosting. T\u1ed1t h\u01a1n l\u00e0 h\u00e3y th\u1ef1c hi\u1ec7n b\u00e0i ki\u1ec3m tra t\u1ea3i trang v\u00e0 bi\u1ebft \u0111\u01b0\u1ee3c trang c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 x\u1eed l\u00fd \u0111\u01b0\u1ee3c bao nhi\u00eau l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp.<\/p>\n\n\n<p><a href=\"https:\/\/loader.io\/\" target=\"_blank\" rel=\"noreferrer noopener\">Loader.io<\/a> gi\u00fap b\u1ea1n l\u00e0m \u0111i\u1ec1u n\u00e0y d\u1ec5 d\u00e0ng b\u1eb1ng c\u00e1ch g\u1eedi 10 ng\u00e0n y\u00eau c\u1ea7u \/ gi\u00e2y t\u1edbi website v\u00e0 xem n\u00f3 x\u1eed l\u00fd th\u1ebf n\u00e0o.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/openlitespeed-load-test-1.png\" alt=\"ki\u1ec3m tra trang b\u1eb1ng loader.io\" class=\"wp-image-14200\"\/><\/figure><\/div>\n\n\n<p>N\u1ebfu b\u1ea1n g\u1eb7p v\u1ea5n \u0111\u1ec1 hosting y\u1ebfu nh\u01b0ng c\u00f3 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp l\u1edbn, t\u00f4i khuy\u00ean b\u1ea1n s\u1eed d\u1ee5ng combo QUIC cloud + BunnyCDN \u0111\u1ec3 kh\u1eafc ph\u1ee5c c\u00e1i n\u00e0y, <a href=\"https:\/\/kiencang.net\/may-chu-goc\/\" target=\"_blank\" rel=\"noreferrer noopener\">m\u00e1y ch\u1ee7 g\u1ed1c<\/a> c\u1ee7a b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c gi\u1ea3m t\u1ea3i \u0111i r\u1ea5t nhi\u1ec1u.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"13_Dotcom-tools\"><\/span>13. Dotcom-tools<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p><a href=\"https:\/\/www.dotcom-tools.com\/website-speed-test.aspx\" target=\"_blank\" rel=\"noreferrer noopener\">dotcom-tools<\/a> ki\u1ec3m tra trang web c\u1ee7a b\u1ea1n t\u1eeb 25 v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd kh\u00e1c nhau, c\u1ea3 l\u01b0\u1ee3t truy c\u1eadp \u0111\u1ea7u ti\u00ean l\u1eabn l\u01b0\u1ee3t l\u1eb7p l\u1ea1i. T\u00f4i c\u0169ng hay s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 n\u00e0y \u0111\u1ec3 x\u00e2y d\u1ef1ng s\u1eb5n (prebuild) b\u1ed9 \u0111\u1ec7m cache c\u1ee7a CDN sau khi purge (xo\u00e1 cache). PS c\u1ee7a Ki\u1ebfn c\u00e0ng: t\u00f4i m\u1edbi bi\u1ebft c\u00f4ng c\u1ee5 hay h\u01a1n \u0111\u1ec3 t\u1ea1o tr\u01b0\u1edbc cache, \u0111\u00f3 l\u00e0 <a href=\"https:\/\/kiencang.net\/optimus-cache-prime\/\" target=\"_blank\" rel=\"noreferrer noopener\">Optimus Cache Prime<\/a>.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/dotcom-tools.png\" alt=\"ki\u1ec3m tra t\u1ed1c \u0111\u1ed9 web v\u1edbi dotcom-tools\" class=\"wp-image-14201\"\/><\/figure><\/div>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"14_Lighthouse\"><\/span>14. Lighthouse<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>Lighthouse l\u00e0 c\u00f4ng c\u1ee5 kh\u00e1c c\u1ee7a Google. N\u00f3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng ngay b\u00ean trong tr\u00ecnh duy\u1ec7t Google Chrome.<\/p>\n\n\n<p>Lighthouse ki\u1ec3m tra hi\u1ec7u su\u1ea5t, kh\u1ea3 n\u0103ng truy c\u1eadp, c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t v\u00e0 c\u1ea3 SEO n\u1eefa. B\u00e1o c\u00e1o &#8220;Performance&#8221; s\u1ebd t\u01b0\u01a1ng t\u1ef1 v\u1edbi c\u00f4ng c\u1ee5 Google PageSpeed Insights. Nh\u01b0ng trong c\u00f4ng c\u1ee5 ri\u00eang l\u1ebb n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra t\u1ea5t c\u1ea3 ch\u00fang c\u00f9ng m\u1ed9t l\u00fac.<\/p>\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra tr\u1ef1c ti\u1ebfp t\u1eeb tab &#8220;Audits&#8221; c\u1ee7a tr\u00ecnh duy\u1ec7t Chrome trong ph\u1ea7n c\u00f4ng c\u1ee5 d\u00e0nh cho nh\u00e0 ph\u00e1t tri\u1ec3n ho\u1eb7c v\u00e0o website web.dev \u0111\u1ec3 th\u1ef1c hi\u1ec7n: <a href=\"https:\/\/web.dev\/measure\" target=\"_blank\" rel=\"noreferrer noopener\">web.dev\/measure<\/a><\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/12\/kiem-tra-voi-lighthouse.png\" alt=\"ki\u1ec3m tra b\u1eb1ng c\u00f4ng c\u1ee5 Lighthouse\" class=\"wp-image-14202\"\/><\/figure><\/div>\n\n\n<p><em>(D\u1ecbch t\u1eeb b\u00e0i vi\u1ebft: 14 Tools I Use to Audit Performance of a WordPress site, t\u00e1c gi\u1ea3: Gijo Varghese, website: WP Speed Matters)<\/em><\/p>\n\n\n<p>P\/S: Kho\u1ea3ng 2, 3 \u1ea3nh t\u00f4i s\u1eed d\u1ee5ng l\u1ea1i c\u1ee7a t\u00e1c gi\u1ea3, c\u00f2n l\u1ea1i t\u00f4i thay b\u1eb1ng \u1ea3nh t\u00f4i t\u1ef1 ch\u1ee5p m\u00e0n h\u00ecnh.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u1ed1c \u0111\u1ed9 trang web kh\u00f4ng ch\u1ec9 c\u00f3 m\u1ed7i ch\u1ec9 s\u1ed1 &#8220;trang web c\u1ee7a t\u00f4i t\u1ea3i ch\u01b0a \u0111\u1ebfn x, y, z gi\u00e2y n\u00e0o \u0111\u00f3&#8221;. C\u00f2n c\u00f3 nhi\u1ec1u y\u1ebfu t\u1ed1 kh\u00e1c m\u00e0 b\u1ea1n c\u1ea7n xem x\u00e9t. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 danh s\u00e1ch c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 d\u1ecbch v\u1ee5 t\u00f4i th\u01b0\u1eddng s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 ho\u1eb7c ki\u1ec3m tra &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[260],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>14 c\u00f4ng c\u1ee5 ki\u1ec3m tra t\u1ed1c \u0111\u1ed9 website t\u00f4i th\u01b0\u1eddng d\u00f9ng &#8226; Ki\u1ebfn c\u00e0ng<\/title>\n<meta name=\"description\" content=\"M\u1ecdi thay \u0111\u1ed5i b\u1ea1n l\u00e0m \u0111\u1ec3 t\u1ed1i \u01b0u t\u1ed1c \u0111\u1ed9 website ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra th\u1ef1c t\u1ebf d\u1ef1a v\u00e0o c\u00e1c c\u00f4ng c\u1ee5. L\u00fd do ch\u1ee7 y\u1ebfu l\u00e0 v\u00ec m\u1ecdi suy \u0111o\u00e1n l\u00fd thuy\u1ebft kh\u00f4ng th\u1ec3 \u0111em \u0111\u1ebfn s\u1ef1 tin c\u1eady 100%\" \/>\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\/cong-cu-kiem-tra-toc-do-website\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"14 c\u00f4ng c\u1ee5 ki\u1ec3m tra t\u1ed1c \u0111\u1ed9 website t\u00f4i th\u01b0\u1eddng d\u00f9ng &#8226; Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"og:description\" content=\"M\u1ecdi thay \u0111\u1ed5i b\u1ea1n l\u00e0m \u0111\u1ec3 t\u1ed1i \u01b0u t\u1ed1c \u0111\u1ed9 website ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra th\u1ef1c t\u1ebf d\u1ef1a v\u00e0o c\u00e1c c\u00f4ng c\u1ee5. 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