{"id":11855,"date":"2022-08-03T06:50:00","date_gmt":"2022-08-02T23:50:00","guid":{"rendered":"https:\/\/www.ducanhplus.com\/?p=11855"},"modified":"2022-08-05T04:47:38","modified_gmt":"2022-08-04T21:47:38","slug":"lan-ghe-tham-website-dau-tien","status":"publish","type":"post","link":"https:\/\/kiencang.net\/lan-ghe-tham-website-dau-tien\/","title":{"rendered":"L\u1ea7n gh\u00e9 th\u0103m website \u0111\u1ea7u ti\u00ean (first view)"},"content":{"rendered":"\n<p>L\u1ea7n gh\u00e9 th\u0103m trang\/website \u0111\u1ea7u ti\u00ean l\u00e0 g\u00ec?<\/p>\n\n\n\n<ul><li>L\u1ea7n gh\u00e9 th\u0103m trang \u0111\u1ea7u ti\u00ean (First View) l\u00e0 m\u1ed9t ch\u1ec9 s\u1ed1 v\u1ec1 hi\u1ec7u su\u1ea5t trang web d\u00f9ng \u0111\u1ec3 ch\u1ec9 ra \u0111i\u1ec1u m\u00e0 &#8220;ng\u01b0\u1eddi gh\u00e9 th\u0103m website l\u1ea7n \u0111\u1ea7u&#8221; s\u1ebd tr\u1ea3i nghi\u1ec7m.<\/li><li>\u0110\u1ec3 minh h\u1ecda m\u1ed9t ng\u01b0\u1eddi d\u00f9ng m\u1edbi, c\u00e1c c\u00f4ng c\u1ee5 hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng tr\u00ecnh duy\u1ec7t v\u1edbi cache v\u00e0 cookies \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00f3a b\u1ecf.<\/li><\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/02\/xoa-cache-cookies.png\" alt=\"x\u00f3a cache v\u00e0 cookies\" class=\"wp-image-11857\"\/><\/figure><\/div>\n\n\n<p>B\u1eb1ng c\u00e1ch x\u00f3a s\u1ea1ch cache v\u00e0 cookies, trang web s\u1ebd ph\u1ea3i t\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c t\u00e0i nguy\u00ean c\u1ee7a n\u00f3 <em>y nh\u01b0 m\u1ed9t ng\u01b0\u1eddi d\u00f9ng th\u1ef1c s\u1ef1 l\u1ea7n \u0111\u1ea7u gh\u00e9 th\u0103m<\/em> m\u1ed9t trang web.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_60 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\" role=\"button\"><label for=\"item-6577d667d9ca5\" ><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-6577d667d9ca5\"  type=\"checkbox\" id=\"item-6577d667d9ca5\"><\/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\/lan-ghe-tham-website-dau-tien\/#1_Tai_sao_can_phai_do_cac_chi_so_lien_quan_den_lan_ghe_tham_trang_dau_tien\" title=\"#1. T\u1ea1i sao c\u1ea7n ph\u1ea3i \u0111o c\u00e1c ch\u1ec9 s\u1ed1 li\u00ean quan \u0111\u1ebfn l\u1ea7n gh\u00e9 th\u0103m trang \u0111\u1ea7u ti\u00ean?\">#1. T\u1ea1i sao c\u1ea7n ph\u1ea3i \u0111o c\u00e1c ch\u1ec9 s\u1ed1 li\u00ean quan \u0111\u1ebfn l\u1ea7n gh\u00e9 th\u0103m trang \u0111\u1ea7u ti\u00ean?<\/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\/lan-ghe-tham-website-dau-tien\/#2_Lam_the_nao_ma_lan_ghe_tham_dau_tien_lai_khac_biet_voi_cac_lan_lap_lai\" title=\"#2. L\u00e0m th\u1ebf n\u00e0o m\u00e0 l\u1ea7n gh\u00e9 th\u0103m \u0111\u1ea7u ti\u00ean l\u1ea1i kh\u00e1c bi\u1ec7t v\u1edbi c\u00e1c l\u1ea7n l\u1eb7p l\u1ea1i?\">#2. L\u00e0m th\u1ebf n\u00e0o m\u00e0 l\u1ea7n gh\u00e9 th\u0103m \u0111\u1ea7u ti\u00ean l\u1ea1i kh\u00e1c bi\u1ec7t v\u1edbi c\u00e1c l\u1ea7n l\u1eb7p l\u1ea1i?<\/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\/lan-ghe-tham-website-dau-tien\/#3_Lan_ghe_tham_thu_hai_vao_trang_web_lan_xem_lap_lai_thuong_se_nhanh_hon_lan_dau_tien\" title=\"#3. L\u1ea7n gh\u00e9 th\u0103m th\u1ee9 hai v\u00e0o trang web (l\u1ea7n xem l\u1eb7p l\u1ea1i) th\u01b0\u1eddng s\u1ebd nhanh h\u01a1n l\u1ea7n \u0111\u1ea7u ti\u00ean\">#3. L\u1ea7n gh\u00e9 th\u0103m th\u1ee9 hai v\u00e0o trang web (l\u1ea7n xem l\u1eb7p l\u1ea1i) th\u01b0\u1eddng s\u1ebd nhanh h\u01a1n l\u1ea7n \u0111\u1ea7u ti\u00ean<\/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\/lan-ghe-tham-website-dau-tien\/#4_Dam_bao_la_ban_co_thuc_hien_toi_uu_hoa_cho_nhung_nguoi_ghe_tham_lap_lai\" title=\"#4. \u0110\u1ea3m b\u1ea3o l\u00e0 b\u1ea1n c\u00f3 th\u1ef1c hi\u1ec7n t\u1ed1i \u01b0u h\u00f3a cho nh\u1eefng ng\u01b0\u1eddi gh\u00e9 th\u0103m l\u1eb7p l\u1ea1i\">#4. \u0110\u1ea3m b\u1ea3o l\u00e0 b\u1ea1n c\u00f3 th\u1ef1c hi\u1ec7n t\u1ed1i \u01b0u h\u00f3a cho nh\u1eefng ng\u01b0\u1eddi gh\u00e9 th\u0103m l\u1eb7p l\u1ea1i<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Tai_sao_can_phai_do_cac_chi_so_lien_quan_den_lan_ghe_tham_trang_dau_tien\"><\/span>#1. T\u1ea1i sao c\u1ea7n ph\u1ea3i \u0111o c\u00e1c ch\u1ec9 s\u1ed1 li\u00ean quan \u0111\u1ebfn l\u1ea7n gh\u00e9 th\u0103m trang \u0111\u1ea7u ti\u00ean?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u0110\u1ec3 ki\u1ec3m tra trang th\u1ef1c s\u1ef1 ch\u00ednh x\u00e1c, th\u00ec ki\u1ec3m tra ph\u1ea3i m\u00f4 ph\u1ecfng c\u00e1ch ng\u01b0\u1eddi d\u00f9ng th\u1ef1c s\u1ef1 tr\u1ea3i nghi\u1ec7m trang.<\/p>\n\n\n\n<p>\u1ea4n t\u01b0\u1ee3ng \u0111\u1ea7u ti\u00ean c\u1ee7a trang web t\u1eeb quan \u0111i\u1ec3m ng\u01b0\u1eddi d\u00f9ng s\u1ebd kh\u00e1c so v\u1edbi c\u00e1c l\u1ea7n gh\u00e9 th\u0103m k\u1ebf ti\u1ebfp.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Lam_the_nao_ma_lan_ghe_tham_dau_tien_lai_khac_biet_voi_cac_lan_lap_lai\"><\/span>#2. L\u00e0m th\u1ebf n\u00e0o m\u00e0 l\u1ea7n gh\u00e9 th\u0103m \u0111\u1ea7u ti\u00ean l\u1ea1i kh\u00e1c bi\u1ec7t v\u1edbi c\u00e1c l\u1ea7n l\u1eb7p l\u1ea1i?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Khi l\u1ea7n \u0111\u1ea7u ti\u00ean tr\u00ecnh duy\u1ec7t ng\u01b0\u1eddi d\u00f9ng g\u1eb7p m\u1ed9t trang web, n\u00f3 ph\u1ea3i l\u1ea5y t\u1ea5t c\u1ea3 c\u00e1c ngu\u1ed3n t\u00e0i nguy\u00ean m\u00e0 trang \u0111\u00f3 c\u00f3. \u1ea2nh, CSS, JavaScript v\u00e0 c\u00e1c t\u00e0i nguy\u00ean kh\u00e1c ch\u1eafc ch\u1eafn ph\u1ea3i \u0111\u01b0\u1ee3c t\u1ea3i t\u1ea5t c\u1ea3 v\u1ec1.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/02\/tai-nguyen-lan-xem-dau-tien.png\" alt=\"tr\u00ecnh duy\u1ec7t ph\u1ea3i t\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c ngu\u1ed3n t\u00e0i nguy\u00ean cho l\u1ea7n xem trang \u0111\u1ea7u ti\u00ean\" class=\"wp-image-11858\"\/><\/figure><\/div>\n\n\n<p>Sau khi trang \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ea3i xong, <a href=\"https:\/\/kiencang.net\/bo-nho-dem-trinh-duyet\/\" target=\"_blank\" rel=\"noreferrer noopener\">tr\u00ecnh duy\u1ec7t c\u00f3 kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef cache nh\u1eefng ngu\u1ed3n t\u00e0i nguy\u00ean \u0111\u00f3<\/a>.<\/p>\n\n\n\n<p>\u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 \u1edf l\u1ea7n th\u1ee9 hai khi ng\u01b0\u1eddi d\u00f9ng nh\u00ecn th\u1ea5y trang, c\u00e1c t\u00e0i nguy\u00ean n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ea3i s\u1eb5n b\u1edfi tr\u00ecnh duy\u1ec7t r\u1ed3i. Ngay c\u1ea3 l\u1ea7n xem c\u00e1c trang kh\u00e1c c\u1ee7a c\u00f9ng m\u1ed9t website th\u00ec n\u00f3 c\u0169ng s\u1ebd \u0111\u01b0\u1ee3c t\u1ea3i nhanh h\u01a1n, b\u1edfi v\u00ec c\u00e1c t\u00e0i nguy\u00ean nh\u01b0 l\u00e0 logo \u1ea3nh, CSS, JavaScript d\u00f9ng chung s\u1ebd c\u00f3 s\u1eb5n trong cache tr\u00ecnh duy\u1ec7t.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Lan_ghe_tham_thu_hai_vao_trang_web_lan_xem_lap_lai_thuong_se_nhanh_hon_lan_dau_tien\"><\/span>#3. L\u1ea7n gh\u00e9 th\u0103m th\u1ee9 hai v\u00e0o trang web (l\u1ea7n xem l\u1eb7p l\u1ea1i) th\u01b0\u1eddng s\u1ebd nhanh h\u01a1n l\u1ea7n \u0111\u1ea7u ti\u00ean<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>L\u1ea7n gh\u00e9 th\u0103m l\u1eb7p l\u1ea1i c\u1ee7a m\u1ed9t trang (ho\u1eb7c xem trang kh\u00e1c nh\u01b0ng s\u1eed d\u1ee5ng c\u00f9ng c\u00e1c ngu\u1ed3n t\u00e0i nguy\u00ean) s\u1ebd nhanh h\u01a1n v\u1edbi \u00edt t\u00e0i nguy\u00ean c\u1ea7n t\u1ea3i v\u1ec1 h\u01a1n.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2019\/02\/lan-ghe-lap-lai.png\" alt=\"l\u1ea7n gh\u00e9 th\u0103m l\u1eb7p l\u1ea1i\" class=\"wp-image-11859\"\/><\/figure><\/div>\n\n\n<p>Ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb web m\u1edbi v\u00e0o ngh\u1ec1 th\u01b0\u1eddng \u1ea3o t\u01b0\u1edfng r\u1eb1ng trang web c\u1ee7a anh ta (c\u00f4 ta) r\u1ea5t nhanh so v\u1edbi th\u1ef1c t\u1ebf, l\u00fd do n\u1eb1m \u1edf ch\u1ed7 tr\u1ea3i nghi\u1ec7m c\u1ee7a h\u1ecd v\u1ec1 trang web l\u00e0 d\u1ef1a tr\u00ean c\u00e1c l\u1ea7n xem l\u1eb7p l\u1ea1i ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u1ea7n xem \u0111\u1ea7u ti\u00ean.<\/p>\n\n\n\n<p>\u0110o trang web s\u1eed d\u1ee5ng first view l\u00e0 c\u00e1ch ch\u00ednh x\u00e1c duy nh\u1ea5t m\u00f4 ph\u1ecfng \u0111\u01b0\u1ee3c \u0111i\u1ec1u m\u00e0 ng\u01b0\u1eddi d\u00f9ng th\u1ef1c t\u1ebf s\u1ebd tr\u1ea3i nghi\u1ec7m khi l\u1ea7n \u0111\u1ea7u gh\u00e9 th\u0103m m\u1ed9t trang web.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Dam_bao_la_ban_co_thuc_hien_toi_uu_hoa_cho_nhung_nguoi_ghe_tham_lap_lai\"><\/span>#4. \u0110\u1ea3m b\u1ea3o l\u00e0 b\u1ea1n c\u00f3 th\u1ef1c hi\u1ec7n t\u1ed1i \u01b0u h\u00f3a cho nh\u1eefng ng\u01b0\u1eddi gh\u00e9 th\u0103m l\u1eb7p l\u1ea1i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb web ph\u1ea3i b\u1eadt <a href=\"https:\/\/kiencang.net\/bo-nho-dem-trinh-duyet\/\" target=\"_blank\" rel=\"noreferrer noopener\">t\u00ednh n\u0103ng b\u1ed9 nh\u1edb \u0111\u1ec7m tr\u00ecnh duy\u1ec7t<\/a> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c tr\u00ecnh duy\u1ec7t s\u1ebd cache c\u00e1c ngu\u1ed3n t\u00e0i nguy\u00ean c\u1ee7a h\u1ecd. N\u1ebfu kh\u00f4ng, m\u1ecdi trang \u0111\u01b0\u1ee3c truy c\u1eadp s\u1ebd \u0111\u1ec1u l\u00e0 &#8220;trang gh\u00e9 th\u0103m l\u1ea7n \u0111\u1ea7u&#8221;.<\/p>\n\n\n\n<p><strong>C\u1eadp nh\u1eadt t\u1eeb Ki\u1ebfn c\u00e0ng<\/strong>: \u0111\u1ec3 m\u00f4 ph\u1ecfng l\u1ea7n gh\u00e9 th\u0103m \u0111\u1ea7u ti\u00ean, tr\u00ean tr\u00ecnh duy\u1ec7t Chrome, b\u1ea1n nh\u1ea5n ph\u00edm F12, sau \u0111\u00f3 tick v\u00e0o \u00f4 Disable cache, r\u1ed3i t\u1ea3i l\u1ea1i trang \u0111\u1ec3 c\u1ea3m nh\u1eadn t\u1ed1c \u0111\u1ed9. C\u00f3 th\u1ec3 click th\u00eam v\u00e0o No throttling, r\u1ed3i ch\u1ecdn t\u1ed1c \u0111\u1ed9 tr\u00ean c\u00e1c m\u00f4 h\u00ecnh k\u1ebft n\u1ed1i kh\u00e1c nhau (nh\u01b0 3G nhanh, ch\u1eadm).<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2022\/08\/vo-hieu-cache.png\"><img loading=\"lazy\" decoding=\"async\" width=\"893\" height=\"477\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2022\/08\/vo-hieu-cache.png\" alt=\"v\u00f4 hi\u1ec7u h\u00f3a cache \u0111\u1ec3 c\u1ea3m nh\u1eadn t\u1ed1c \u0111\u1ed9 th\u1eadt\" class=\"wp-image-22698\" srcset=\"https:\/\/kiencang.net\/wp-content\/uploads\/2022\/08\/vo-hieu-cache.png 893w, https:\/\/kiencang.net\/wp-content\/uploads\/2022\/08\/vo-hieu-cache-300x160.png 300w, https:\/\/kiencang.net\/wp-content\/uploads\/2022\/08\/vo-hieu-cache-768x410.png 768w\" sizes=\"(max-width: 893px) 100vw, 893px\" \/><\/a><\/figure><\/div>\n\n\n<p><em>(D\u1ecbch t\u1eeb b\u00e0i vi\u1ebft: First View &#8211; T\u00e1c gi\u1ea3: Patrick Sexton \u2013 Website: Varvy)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u1ea7n gh\u00e9 th\u0103m trang\/website \u0111\u1ea7u ti\u00ean l\u00e0 g\u00ec? L\u1ea7n gh\u00e9 th\u0103m trang \u0111\u1ea7u ti\u00ean (First View) l\u00e0 m\u1ed9t ch\u1ec9 s\u1ed1 v\u1ec1 hi\u1ec7u su\u1ea5t trang web d\u00f9ng \u0111\u1ec3 ch\u1ec9 ra \u0111i\u1ec1u m\u00e0 &#8220;ng\u01b0\u1eddi gh\u00e9 th\u0103m website l\u1ea7n \u0111\u1ea7u&#8221; s\u1ebd tr\u1ea3i nghi\u1ec7m. \u0110\u1ec3 minh h\u1ecda m\u1ed9t ng\u01b0\u1eddi d\u00f9ng m\u1edbi, c\u00e1c c\u00f4ng c\u1ee5 hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng tr\u00ecnh &hellip;<\/p>\n","protected":false},"author":1,"featured_media":13054,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[293],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>L\u1ea7n gh\u00e9 th\u0103m website \u0111\u1ea7u ti\u00ean (first view) &#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\/lan-ghe-tham-website-dau-tien\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"L\u1ea7n gh\u00e9 th\u0103m website \u0111\u1ea7u ti\u00ean (first view) &#8226; Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"og:description\" content=\"L\u1ea7n gh\u00e9 th\u0103m trang\/website \u0111\u1ea7u ti\u00ean l\u00e0 g\u00ec? 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