{"id":120120,"date":"2025-10-15T16:03:27","date_gmt":"2025-10-15T09:03:27","guid":{"rendered":"https:\/\/tino.vn\/blog\/?p=120120"},"modified":"2025-10-15T16:12:35","modified_gmt":"2025-10-15T09:12:35","slug":"su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3","status":"publish","type":"post","link":"https:\/\/tino.vn\/blog\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3\/","title":{"rendered":"T\u00ecm hi\u1ec3u s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa HTTP\/1.0, HTTP\/1.1, HTTP\/2 v\u00e0 HTTP\/3"},"content":{"rendered":"\n<p><strong>Khi truy c\u1eadp m\u1ed9t trang web, c\u00f3 bao gi\u1edd b\u1ea1n th\u1eafc m\u1eafc \u0111i\u1ec1u g\u00ec \u0111ang di\u1ec5n ra ph\u00eda sau m\u1ed7i c\u00fa nh\u1ea5p chu\u1ed9t? M\u1ecdi n\u1ed9i dung \u2014 t\u1eeb h\u00ecnh \u1ea3nh, video \u0111\u1ebfn v\u0103n b\u1ea3n \u2014 \u0111\u1ec1u \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i qua m\u1ed9t giao th\u1ee9c c\u00f3 t\u00ean l\u00e0 <a href=\"https:\/\/tino.vn\/blog\/so-sanh-http-va-https\/\" target=\"_blank\" data-type=\"post\" data-id=\"102105\" rel=\"noreferrer noopener\">HTTP (HyperText Transfer Protocol)<\/a>. Tr\u1ea3i qua nhi\u1ec1u n\u0103m ph\u00e1t tri\u1ec3n, HTTP \u0111\u00e3 c\u00f3 nh\u1eefng b\u01b0\u1edbc ti\u1ebfn v\u01b0\u1ee3t b\u1eadc t\u1eeb HTTP\/1.0 \u0111\u1ebfn HTTP\/3, gi\u00fap t\u1ed1c \u0111\u1ed9 truy c\u1eadp nhanh h\u01a1n, gi\u1ea3m \u0111\u1ed9 tr\u1ec5 v\u00e0 t\u0103ng t\u00ednh b\u1ea3o m\u1eadt. V\u1eady s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa HTTP\/1.0, HTTP\/1.1, HTTP\/2 v\u00e0 HTTP\/3 l\u00e0 g\u00ec?<\/strong><\/p>\n\n\n\n<h2 id=\"HTTP_l\u00e0_g\u00ec?\"><a id=\"post-120120-_c5ugnsh2lj4i\"><\/a>HTTP l\u00e0 g\u00ec?<\/h2>\n\n\n\n<h3 id=\"Gi\u1ea3i_th\u00edch_kh\u00e1i_ni\u1ec7m_HTTP\"><a id=\"post-120120-_8qqtl2gja15z\"><\/a><strong>Gi\u1ea3i th\u00edch kh\u00e1i ni\u1ec7m HTTP<\/strong><\/h3>\n\n\n\n<p>HTTP, vi\u1ebft t\u1eaft c\u1ee7a <strong>HyperText Transfer Protocol<\/strong> (Giao th\u1ee9c truy\u1ec1n t\u1ea3i si\u00eau v\u0103n b\u1ea3n), l\u00e0 b\u1ed9 quy t\u1eafc n\u1ec1n t\u1ea3ng cho ph\u00e9p giao ti\u1ebfp tr\u00ean World Wide Web. H\u00e3y h\u00ecnh dung n\u00f3 nh\u01b0 m\u1ed9t &#8220;ng\u00f4n ng\u1eef&#8221; chung m\u00e0 tr\u00ecnh duy\u1ec7t web c\u1ee7a b\u1ea1n (client) v\u00e0 m\u00e1y ch\u1ee7 ch\u1ee9a website (server) s\u1eed d\u1ee5ng \u0111\u1ec3 n\u00f3i chuy\u1ec7n v\u1edbi nhau.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-1.png\" alt=\"\" class=\"wp-image-120125\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-1.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-1-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>HTTP l\u00e0 g\u00ec?<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p>Khi b\u1ea1n g\u00f5 m\u1ed9t \u0111\u1ecba ch\u1ec9 web v\u00e0 nh\u1ea5n <em>Enter<\/em>, tr\u00ecnh duy\u1ec7t c\u1ee7a b\u1ea1n s\u1ebd g\u1eedi \u0111i m\u1ed9t <strong>y\u00eau c\u1ea7u HTTP<\/strong> (HTTP Request) \u0111\u1ebfn m\u00e1y ch\u1ee7. M\u00e1y ch\u1ee7 sau khi nh\u1eadn v\u00e0 x\u1eed l\u00fd y\u00eau c\u1ea7u n\u00e0y s\u1ebd g\u1eedi l\u1ea1i m\u1ed9t <strong>ph\u1ea3n h\u1ed3i HTTP<\/strong> (HTTP Response) ch\u1ee9a d\u1eef li\u1ec7u c\u1ee7a trang web (v\u0103n b\u1ea3n, h\u00ecnh \u1ea3nh, video&#8230;). To\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh n\u00e0y di\u1ec5n ra ch\u1ec9 trong v\u00e0i mili gi\u00e2y, t\u1ea1o n\u00ean tr\u1ea3i nghi\u1ec7m l\u01b0\u1edbt web li\u1ec1n m\u1ea1ch m\u00e0 ch\u00fang ta c\u00f3 h\u00e0ng ng\u00e0y.<\/p>\n\n\n\n<p>\u0110i\u1ec3m \u0111\u1eb7c tr\u01b0ng c\u1ed1t l\u00f5i c\u1ee7a HTTP l\u00e0 n\u00f3 &#8220;phi tr\u1ea1ng th\u00e1i&#8221; (stateless), ngh\u0129a l\u00e0 m\u1ed7i y\u00eau c\u1ea7u \u0111\u1ec1u \u0111\u1ed9c l\u1eadp v\u00e0 m\u00e1y ch\u1ee7 kh\u00f4ng l\u01b0u l\u1ea1i th\u00f4ng tin v\u1ec1 c\u00e1c y\u00eau c\u1ea7u tr\u01b0\u1edbc \u0111\u00f3 t\u1eeb c\u00f9ng m\u1ed9t ng\u01b0\u1eddi d\u00f9ng.<\/p>\n\n\n\n<p>Theo th\u1eddi gian, giao th\u1ee9c n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea3i ti\u1ebfn qua nhi\u1ec1u phi\u00ean b\u1ea3n \u2014 t\u1eeb <strong>HTTP\/1.0<\/strong> \u0111\u1ebfn <strong>HTTP\/3<\/strong> \u2014 nh\u1eb1m n\u00e2ng cao t\u1ed1c \u0111\u1ed9 t\u1ea3i trang, gi\u1ea3m \u0111\u1ed9 tr\u1ec5 v\u00e0 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt trong qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eef li\u1ec7u.<\/p>\n\n\n\n<h3 id=\"Vai_tr\u00f2_c\u1ee7a_HTTP_\u0111\u1ed1i_v\u1edbi_Internet\"><a id=\"post-120120-_6uqzgf6x6ckb\"><\/a><strong>Vai tr\u00f2 c\u1ee7a HTTP \u0111\u1ed1i v\u1edbi Internet<\/strong><\/h3>\n\n\n\n<h4 id=\"N\u1ec1n_t\u1ea3ng_giao_ti\u1ebfp_cho_World_Wide_Web\"><a id=\"post-120120-_nfs22wtqic4q\"><\/a>N\u1ec1n t\u1ea3ng giao ti\u1ebfp cho World Wide Web<\/h4>\n\n\n\n<p>Vai tr\u00f2 c\u01a1 b\u1ea3n nh\u1ea5t c\u1ee7a HTTP l\u00e0 t\u1ea1o ra m\u1ed9t b\u1ed9 quy t\u1eafc chu\u1ea9n h\u00f3a, m\u1ed9t <strong>ng\u00f4n ng\u1eef chung<\/strong> cho ph\u00e9p c\u00e1c tr\u00ecnh duy\u1ec7t web (client) v\u00e0 m\u00e1y ch\u1ee7 web (server) &#8220;n\u00f3i chuy\u1ec7n&#8221; v\u1edbi nhau. B\u1ea5t k\u1ec3 b\u1ea1n d\u00f9ng tr\u00ecnh duy\u1ec7t Chrome, Firefox hay Safari, tr\u00ean m\u00e1y t\u00ednh Windows hay \u0111i\u1ec7n tho\u1ea1i Android, n\u00f3 \u0111\u1ec1u s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t giao th\u1ee9c HTTP \u0111\u1ec3 g\u1eedi y\u00eau c\u1ea7u v\u00e0 nh\u1eadn d\u1eef li\u1ec7u t\u1eeb m\u00e1y ch\u1ee7. S\u1ef1 \u0111\u1ed3ng nh\u1ea5t n\u00e0y ch\u00ednh l\u00e0 y\u1ebfu t\u1ed1 cho ph\u00e9p World Wide Web ho\u1ea1t \u0111\u1ed9ng tr\u00ean quy m\u00f4 to\u00e0n c\u1ea7u.<\/p>\n\n\n\n<h4 id=\"Cho_ph\u00e9p_truy_xu\u1ea5t_t\u00e0i_nguy\u00ean_\u0111a_d\u1ea1ng\"><a id=\"post-120120-_jtqj0j1g6s7a\"><\/a>Cho ph\u00e9p truy xu\u1ea5t t\u00e0i nguy\u00ean \u0111a d\u1ea1ng<\/h4>\n\n\n\n<p>Khi b\u1ea1n truy c\u1eadp m\u1ed9t trang web, b\u1ea1n kh\u00f4ng ch\u1ec9 t\u1ea3i v\u1ec1 v\u0103n b\u1ea3n. M\u1ed9t trang web hi\u1ec7n \u0111\u1ea1i l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a nhi\u1ec1u lo\u1ea1i t\u00e0i nguy\u00ean kh\u00e1c nhau. HTTP ch\u00ednh l\u00e0 giao th\u1ee9c \u0111i\u1ec1u ph\u1ed1i vi\u1ec7c t\u1ea3i v\u1ec1 t\u1ea5t c\u1ea3 c\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>T\u1ec7p HTML:<\/strong> C\u1ea5u tr\u00fac v\u00e0 n\u1ed9i dung c\u1ee7a trang.<\/li>\n\n\n\n<li><strong>T\u1ec7p CSS:<\/strong> \u0110\u1ecbnh d\u1ea1ng phong c\u00e1ch, m\u00e0u s\u1eafc, b\u1ed1 c\u1ee5c.<\/li>\n\n\n\n<li><strong>T\u1ec7p JavaScript:<\/strong> T\u1ea1o ra c\u00e1c t\u00ednh n\u0103ng t\u01b0\u01a1ng t\u00e1c.<\/li>\n\n\n\n<li><strong>H\u00ecnh \u1ea3nh, video, \u00e2m thanh:<\/strong> N\u1ed9i dung \u0111a ph\u01b0\u01a1ng ti\u1ec7n.<\/li>\n\n\n\n<li><strong>Ph\u00f4ng ch\u1eef (Fonts), t\u1ec7p PDF, v\u00e0 nhi\u1ec1u h\u01a1n n\u1eefa.<\/strong><\/li>\n<\/ul>\n\n\n\n<p>HTTP cho ph\u00e9p tr\u00ecnh duy\u1ec7t g\u1eedi nhi\u1ec1u y\u00eau c\u1ea7u \u0111\u1ec3 t\u1eadp h\u1ee3p t\u1ea5t c\u1ea3 c\u00e1c m\u1ea3nh gh\u00e9p n\u00e0y l\u1ea1i v\u00e0 hi\u1ec3n th\u1ecb th\u00e0nh m\u1ed9t trang web ho\u00e0n ch\u1ec9nh cho b\u1ea1n.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-2.png\" alt=\"Vai tr\u00f2 c\u1ee7a HTTP \u0111\u1ed1i v\u1edbi Internet\" class=\"wp-image-120126\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-2.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-2-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>Vai tr\u00f2 c\u1ee7a HTTP \u0111\u1ed1i v\u1edbi Internet<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h4 id=\"X\u01b0\u01a1ng_s\u1ed1ng_cho_c\u00e1c_API_hi\u1ec7n_\u0111\u1ea1i\"><a id=\"post-120120-_wynnea9ams3f\"><\/a>X\u01b0\u01a1ng s\u1ed1ng cho c\u00e1c API hi\u1ec7n \u0111\u1ea1i<\/h4>\n\n\n\n<p>HTTP c\u00f2n l\u00e0 n\u1ec1n t\u1ea3ng cho h\u1ea7u h\u1ebft c\u00e1c <strong>API<\/strong> (Giao di\u1ec7n l\u1eadp tr\u00ecnh \u1ee9ng d\u1ee5ng) k\u1ebft n\u1ed1i c\u00e1c \u1ee9ng d\u1ee5ng v\u00e0 d\u1ecbch v\u1ee5 tr\u00ean Internet.<\/p>\n\n\n\n<p>Khi b\u1ea1n d\u00f9ng m\u1ed9t \u1ee9ng d\u1ee5ng tr\u00ean \u0111i\u1ec7n tho\u1ea1i, v\u00ed d\u1ee5 nh\u01b0 xem th\u1eddi ti\u1ebft, \u0111\u1eb7t xe, hay l\u01b0\u1edbt m\u1ea1ng x\u00e3 h\u1ed9i, \u1ee9ng d\u1ee5ng \u0111\u00f3 \u0111ang \u00e2m th\u1ea7m g\u1eedi c\u00e1c y\u00eau c\u1ea7u HTTP \u0111\u1ebfn m\u00e1y ch\u1ee7 c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u1ec3 l\u1ea5y d\u1eef li\u1ec7u m\u1edbi nh\u1ea5t. N\u00f3i c\u00e1ch kh\u00e1c, HTTP l\u00e0 &#8220;s\u1ee3i d\u00e2y&#8221; v\u00f4 h\u00ecnh k\u1ebft n\u1ed1i c\u00e1c \u1ee9ng d\u1ee5ng di \u0111\u1ed9ng, ph\u1ea7n m\u1ec1m m\u00e1y t\u00ednh, v\u00e0 th\u1eadm ch\u00ed c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb IoT v\u1edbi th\u1ebf gi\u1edbi Internet.<\/p>\n\n\n\n<h4 id=\"Cung_c\u1ea5p_c\u1ea5u_tr\u00fac_v\u00e0_quy_t\u1eafc\"><a id=\"post-120120-_5qju0kku5nft\"><\/a>Cung c\u1ea5p c\u1ea5u tr\u00fac v\u00e0 quy t\u1eafc<\/h4>\n\n\n\n<p>HTTP \u0111\u1ecbnh h\u00ecnh r\u00f5 r\u00e0ng &#8220;lu\u1eadt ch\u01a1i&#8221; cho vi\u1ec7c trao \u0111\u1ed5i d\u1eef li\u1ec7u. N\u00f3 \u0111\u1ecbnh ngh\u0129a:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>C\u00e1c ph\u01b0\u01a1ng th\u1ee9c y\u00eau c\u1ea7u (Request Methods):<\/strong> Nh\u01b0 GET \u0111\u1ec3 l\u1ea5y d\u1eef li\u1ec7u, POST \u0111\u1ec3 g\u1eedi d\u1eef li\u1ec7u m\u1edbi.<\/li>\n\n\n\n<li><strong>C\u00e1c m\u00e3 tr\u1ea1ng th\u00e1i (Status Codes):<\/strong> Gi\u00fap tr\u00ecnh duy\u1ec7t hi\u1ec3u k\u1ebft qu\u1ea3 c\u1ee7a y\u00eau c\u1ea7u. V\u00ed d\u1ee5, 200 OK (th\u00e0nh c\u00f4ng), 404 Not Found (kh\u00f4ng t\u00ecm th\u1ea5y trang), 500 Internal Server Error (l\u1ed7i m\u00e1y ch\u1ee7).<\/li>\n<\/ul>\n\n\n\n<p>Nh\u1eefng quy t\u1eafc n\u00e0y t\u1ea1o ra m\u1ed9t h\u1ec7 th\u1ed1ng giao ti\u1ebfp c\u00f3 tr\u1eadt t\u1ef1 v\u00e0 hi\u1ec7u qu\u1ea3, gi\u00fap c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n d\u1ec5 d\u00e0ng x\u00e2y d\u1ef1ng v\u00e0 g\u1ee1 l\u1ed7i c\u00e1c \u1ee9ng d\u1ee5ng web.<\/p>\n\n\n\n<h2 id=\"L\u1ecbch_s\u1eed_ph\u00e1t_tri\u1ec3n_c\u1ee7a_HTTP\"><a id=\"post-120120-_o1qqc5j9jidp\"><\/a>L\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n c\u1ee7a HTTP<\/h2>\n\n\n\n<h3 id=\"HTTP\/0.9_(1991):_Bu\u1ed5i_b\u00ecnh_minh_s\u01a1_khai\"><a id=\"post-120120-_3hppc374wgn3\"><\/a><strong>HTTP\/0.9 (1991): Bu\u1ed5i b\u00ecnh minh s\u01a1 khai<\/strong><\/h3>\n\n\n\n<p>Phi\u00ean b\u1ea3n \u0111\u1ea7u ti\u00ean c\u1ee7a HTTP do <strong>Tim Berners-Lee<\/strong> t\u1ea1o ra c\u1ef1c k\u1ef3 \u0111\u01a1n gi\u1ea3n. N\u00f3 ch\u1ec9 c\u00f3 m\u1ed9t m\u1ee5c \u0111\u00edch duy nh\u1ea5t: l\u1ea5y m\u1ed9t t\u00e0i li\u1ec7u HTML t\u1eeb m\u1ed9t m\u00e1y ch\u1ee7. Kh\u00f4ng c\u00f3 phi\u00ean b\u1ea3n, kh\u00f4ng c\u00f3 ti\u00eau \u0111\u1ec1 (headers) v\u00e0 kh\u00f4ng c\u00f3 m\u00e3 tr\u1ea1ng th\u00e1i. Y\u00eau c\u1ea7u ch\u1ec9 bao g\u1ed3m m\u1ed9t d\u00f2ng duy nh\u1ea5t (GET [t\u00ean-t\u00e0i-li\u1ec7u]) v\u00e0 ph\u1ea3n h\u1ed3i c\u1ee7a m\u00e1y ch\u1ee7 ch\u1ec9 l\u00e0 n\u1ed9i dung c\u1ee7a t\u1ec7p HTML \u0111\u00f3. Khi \u0111\u00f3, HTTP c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 &#8220;giao th\u1ee9c m\u1ed9t d\u00f2ng&#8221; v\u00e0 l\u00e0 n\u1ec1n m\u00f3ng s\u01a1 khai nh\u1ea5t cho web.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-3.png\" alt=\"L\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n c\u1ee7a HTTP\" class=\"wp-image-120127\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-3.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-3-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>L\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n c\u1ee7a HTTP<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"HTTP\/1.0_(1996):_Chu\u1ea9n_h\u00f3a_l\u1ea7n_\u0111\u1ea7u_ti\u00ean\"><a id=\"post-120120-_y8pw4vw3op05\"><\/a><strong>HTTP\/1.0 (1996): Chu\u1ea9n h\u00f3a l\u1ea7n \u0111\u1ea7u ti\u00ean<\/strong><\/h3>\n\n\n\n<p>Khi web b\u1eaft \u0111\u1ea7u ph\u00e1t tri\u1ec3n v\u01b0\u1ee3t ra ngo\u00e0i c\u00e1c t\u00e0i li\u1ec7u v\u0103n b\u1ea3n \u0111\u01a1n gi\u1ea3n, HTTP\/0.9 \u0111\u00e3 kh\u00f4ng c\u00f2n \u0111\u1ee7. HTTP\/1.0, \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a trong RFC 1945, \u0111\u00e3 gi\u1edbi thi\u1ec7u nhi\u1ec1u t\u00ednh n\u0103ng quan tr\u1ecdng m\u00e0 ch\u00fang ta v\u1eabn th\u1ea5y ng\u00e0y nay:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Th\u00f4ng tin phi\u00ean b\u1ea3n:<\/strong> M\u1ed7i y\u00eau c\u1ea7u v\u00e0 ph\u1ea3n h\u1ed3i \u0111\u1ec1u b\u1eaft \u0111\u1ea7u b\u1eb1ng phi\u00ean b\u1ea3n HTTP (v\u00ed d\u1ee5: HTTP\/1.0).<\/li>\n\n\n\n<li><strong>M\u00e3 tr\u1ea1ng th\u00e1i (Status Codes):<\/strong> M\u00e1y ch\u1ee7 c\u00f3 th\u1ec3 cho tr\u00ecnh duy\u1ec7t bi\u1ebft k\u1ebft qu\u1ea3 c\u1ee7a y\u00eau c\u1ea7u (200 OK cho th\u00e0nh c\u00f4ng, 404 Not Found cho l\u1ed7i, v.v.).<\/li>\n\n\n\n<li><strong>Ti\u00eau \u0111\u1ec1 (Headers):<\/strong> Cho ph\u00e9p truy\u1ec1n si\u00eau d\u1eef li\u1ec7u. Ti\u00eau \u0111\u1ec1 Content-Type l\u00e0 m\u1ed9t v\u00ed d\u1ee5 quan tr\u1ecdng, cho ph\u00e9p web truy\u1ec1n t\u1ea3i c\u1ea3 h\u00ecnh \u1ea3nh, video v\u00e0 c\u00e1c lo\u1ea1i t\u1ec7p kh\u00e1c ch\u1ee9 kh\u00f4ng ch\u1ec9 HTML.<\/li>\n<\/ul>\n\n\n\n<p><strong>H\u1ea1n ch\u1ebf l\u1edbn nh\u1ea5t:<\/strong> HTTP\/1.0 m\u1edf m\u1ed9t k\u1ebft n\u1ed1i TCP m\u1edbi cho <em>m\u1ed7i t\u00e0i nguy\u00ean<\/em> tr\u00ean m\u1ed9t trang. N\u1ebfu m\u1ed9t trang c\u00f3 10 h\u00ecnh \u1ea3nh, n\u00f3 s\u1ebd ph\u1ea3i th\u1ef1c hi\u1ec7n 11 k\u1ebft n\u1ed1i ri\u00eang bi\u1ec7t (1 cho HTML, 10 cho h\u00ecnh \u1ea3nh), \u0111i\u1ec1u n\u00e0y r\u1ea5t ch\u1eadm v\u00e0 kh\u00f4ng hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n<h3 id=\"HTTP\/1.1_(1997-1999):_Ng\u01b0\u1eddi_h\u00f9ng_th\u1ea7m_l\u1eb7ng_c\u1ee7a_Internet\"><a id=\"post-120120-_56w71o5zzb52\"><\/a><strong>HTTP\/1.1 (1997-1999): Ng\u01b0\u1eddi h\u00f9ng th\u1ea7m l\u1eb7ng c\u1ee7a Internet<\/strong><\/h3>\n\n\n\n<p>HTTP\/1.1 l\u00e0 m\u1ed9t b\u1ea3n n\u00e2ng c\u1ea5p kh\u1ed5ng l\u1ed3 v\u00e0 \u0111\u00e3 tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n c\u1ee7a web trong h\u01a1n 15 n\u0103m. Phi\u00ean b\u1ea3n n\u00e0y gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 hi\u1ec7u su\u1ea5t l\u1edbn nh\u1ea5t c\u1ee7a phi\u00ean b\u1ea3n 1.0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>K\u1ebft n\u1ed1i b\u1ec1n b\u1ec9 (Persistent Connections):<\/strong> \u0110\u00e2y l\u00e0 thay \u0111\u1ed5i quan tr\u1ecdng nh\u1ea5t. Tr\u00ecnh duy\u1ec7t c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t k\u1ebft n\u1ed1i TCP \u0111\u1ec3 t\u1ea3i nhi\u1ec1u t\u00e0i nguy\u00ean t\u1eeb c\u00f9ng m\u1ed9t m\u00e1y ch\u1ee7, gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 tr\u1ec5.<\/li>\n\n\n\n<li><strong>Pipelining:<\/strong> Cho ph\u00e9p tr\u00ecnh duy\u1ec7t g\u1eedi nhi\u1ec1u y\u00eau c\u1ea7u tr\u00ean c\u00f9ng m\u1ed9t k\u1ebft n\u1ed1i m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ee3i ph\u1ea3n h\u1ed3i c\u1ee7a y\u00eau c\u1ea7u tr\u01b0\u1edbc. Tuy nhi\u00ean, t\u00ednh n\u0103ng n\u00e0y kh\u00f3 tri\u1ec3n khai v\u00e0 g\u1eb7p ph\u1ea3i v\u1ea5n \u0111\u1ec1 &#8220;Head-of-Line Blocking&#8221; (n\u1ebfu y\u00eau c\u1ea7u \u0111\u1ea7u ti\u00ean b\u1ecb k\u1eb9t, t\u1ea5t c\u1ea3 c\u00e1c y\u00eau c\u1ea7u sau c\u0169ng ph\u1ea3i ch\u1edd).<\/li>\n\n\n\n<li><strong>Host Header:<\/strong> Cho ph\u00e9p nhi\u1ec1u trang web kh\u00e1c nhau c\u00f9ng ch\u1ea1y tr\u00ean m\u1ed9t \u0111\u1ecba ch\u1ec9 IP, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho s\u1ef1 b\u00f9ng n\u1ed5 c\u1ee7a d\u1ecbch v\u1ee5 web hosting gi\u00e1 r\u1ebb.<\/li>\n<\/ul>\n\n\n\n<h3 id=\"HTTP\/2_(2015):_Cu\u1ed9c_c\u00e1ch_m\u1ea1ng_v\u1ec1_hi\u1ec7u_su\u1ea5t\"><a id=\"post-120120-_nverm4ofeve6\"><\/a><strong>HTTP\/2 (2015): Cu\u1ed9c c\u00e1ch m\u1ea1ng v\u1ec1 hi\u1ec7u su\u1ea5t<\/strong><\/h3>\n\n\n\n<p>\u0110\u1ebfn nh\u1eefng n\u0103m 2010, c\u00e1c trang web ng\u00e0y c\u00e0ng ph\u1ee9c t\u1ea1p v\u1edbi h\u00e0ng tr\u0103m t\u00e0i nguy\u00ean. Nh\u1eefng c\u1ea3i ti\u1ebfn c\u1ee7a HTTP\/1.1 \u0111\u00e3 kh\u00f4ng c\u00f2n \u0111\u1ee7. D\u1ef1a tr\u00ean giao th\u1ee9c SPDY th\u1eed nghi\u1ec7m c\u1ee7a Google, HTTP\/2 \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ea1o ra \u0111\u1ec3 thay \u0111\u1ed5i ho\u00e0n to\u00e0n c\u00e1ch d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Gh\u00e9p k\u00eanh (Multiplexing):<\/strong> T\u00ednh n\u0103ng \u0111\u1ed9t ph\u00e1 nh\u1ea5t. N\u00f3 cho ph\u00e9p nhi\u1ec1u y\u00eau c\u1ea7u v\u00e0 ph\u1ea3n h\u1ed3i \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ed3ng th\u1eddi qua m\u1ed9t k\u1ebft n\u1ed1i TCP duy nh\u1ea5t m\u00e0 kh\u00f4ng b\u1ecb ch\u1eb7n l\u1eabn nhau. \u0110i\u1ec1u n\u00e0y \u0111\u00e3 gi\u1ea3i quy\u1ebft tri\u1ec7t \u0111\u1ec3 v\u1ea5n \u0111\u1ec1 &#8220;Head-of-Line Blocking&#8221; c\u1ee7a HTTP\/1.1.<\/li>\n\n\n\n<li><strong>Giao th\u1ee9c nh\u1ecb ph\u00e2n (Binary Protocol):<\/strong> Thay v\u00ec g\u1eedi d\u1eef li\u1ec7u d\u01b0\u1edbi d\u1ea1ng v\u0103n b\u1ea3n, HTTP\/2 s\u1eed d\u1ee5ng \u0111\u1ecbnh d\u1ea1ng nh\u1ecb ph\u00e2n, gi\u00fap m\u00e1y t\u00ednh x\u1eed l\u00fd hi\u1ec7u qu\u1ea3 h\u01a1n v\u00e0 \u00edt l\u1ed7i h\u01a1n.<\/li>\n\n\n\n<li><strong>N\u00e9n ti\u00eau \u0111\u1ec1 (Header Compression):<\/strong> Gi\u1ea3m \u0111\u00e1ng k\u1ec3 l\u01b0\u1ee3ng d\u1eef li\u1ec7u th\u1eeba trong c\u00e1c ti\u00eau \u0111\u1ec1, \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch cho c\u00e1c k\u1ebft n\u1ed1i di \u0111\u1ed9ng.<\/li>\n\n\n\n<li><strong>Server Push:<\/strong> Cho ph\u00e9p m\u00e1y ch\u1ee7 ch\u1ee7 \u0111\u1ed9ng g\u1eedi c\u00e1c t\u00e0i nguy\u00ean m\u00e0 n\u00f3 d\u1ef1 \u0111o\u00e1n tr\u00ecnh duy\u1ec7t s\u1ebd c\u1ea7n, tr\u01b0\u1edbc c\u1ea3 khi tr\u00ecnh duy\u1ec7t y\u00eau c\u1ea7u ch\u00fang.<\/li>\n<\/ul>\n\n\n\n<h3 id=\"HTTP\/3_(2022):_T\u01b0\u01a1ng_lai_x\u00e2y_d\u1ef1ng_tr\u00ean_QUIC\"><a id=\"post-120120-_88pa7obopibh\"><\/a><strong>HTTP\/3 (2022): T\u01b0\u01a1ng lai x\u00e2y d\u1ef1ng tr\u00ean QUIC<\/strong><\/h3>\n\n\n\n<p>M\u1eb7c d\u00f9 HTTP\/2 r\u1ea5t hi\u1ec7u qu\u1ea3, n\u00f3 v\u1eabn b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi giao th\u1ee9c b\u00ean d\u01b0\u1edbi n\u00f3: TCP. TCP y\u00eau c\u1ea7u c\u00e1c g\u00f3i tin ph\u1ea3i \u0111\u01b0\u1ee3c x\u1eed l\u00fd theo \u0111\u00fang th\u1ee9 t\u1ef1, v\u00ec v\u1eady n\u1ebfu m\u1ed9t g\u00f3i tin b\u1ecb m\u1ea5t tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n, to\u00e0n b\u1ed9 k\u1ebft n\u1ed1i s\u1ebd b\u1ecb t\u1ea1m d\u1eebng \u0111\u1ec3 ch\u1edd g\u00f3i tin \u0111\u00f3 \u0111\u01b0\u1ee3c g\u1eedi l\u1ea1i. \u0110\u00e2y l\u00e0 m\u1ed9t d\u1ea1ng &#8220;Head-of-Line Blocking&#8221; kh\u00e1c \u1edf t\u1ea7ng giao v\u1eadn.<\/p>\n\n\n\n<p>HTTP\/3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y b\u1eb1ng c\u00e1ch t\u1eeb b\u1ecf TCP v\u00e0 chuy\u1ec3n sang m\u1ed9t giao th\u1ee9c ho\u00e0n to\u00e0n m\u1edbi do Google ph\u00e1t tri\u1ec3n c\u00f3 t\u00ean l\u00e0 <strong>QUIC<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ch\u1ea1y tr\u00ean UDP:<\/strong> QUIC \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u00ean n\u1ec1n t\u1ea3ng UDP, kh\u00f4ng y\u00eau c\u1ea7u th\u1ee9 t\u1ef1 g\u00f3i tin nghi\u00eam ng\u1eb7t nh\u01b0 TCP. N\u1ebfu m\u1ed9t lu\u1ed3ng d\u1eef li\u1ec7u b\u1ecb m\u1ea5t g\u00f3i tin, c\u00e1c lu\u1ed3ng kh\u00e1c v\u1eabn c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c.<\/li>\n\n\n\n<li><strong>K\u1ebft n\u1ed1i nhanh h\u01a1n:<\/strong> QUIC t\u00edch h\u1ee3p qu\u00e1 tr\u00ecnh b\u1eaft tay m\u00e3 h\u00f3a TLS, gi\u00fap gi\u1ea3m th\u1eddi gian thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i ban \u0111\u1ea7u.<\/li>\n\n\n\n<li><strong>Ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n tr\u00ean m\u1ea1ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh:<\/strong> L\u00fd t\u01b0\u1edfng cho c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng th\u01b0\u1eddng xuy\u00ean chuy\u1ec3n \u0111\u1ed5i gi\u1eefa Wi-Fi v\u00e0 4G\/5G.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-4.png\" alt=\"T\u01b0\u01a1ng lai x\u00e2y d\u1ef1ng tr\u00ean QUIC\" class=\"wp-image-120128\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-4.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-4-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>T\u01b0\u01a1ng lai x\u00e2y d\u1ef1ng tr\u00ean QUIC<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h2 id=\"S\u1ef1_kh\u00e1c_bi\u1ec7t_gi\u1eefa_HTTP\/1.0,_HTTP\/1.1,_HTTP\/2_v\u00e0_HTTP\/3\"><a id=\"post-120120-_yg5tpbr2ew15\"><\/a>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa HTTP\/1.0, HTTP\/1.1, HTTP\/2 v\u00e0 HTTP\/3<\/h2>\n\n\n\n<h3 id=\"V\u1ec1_m\u00f4_h\u00ecnh_qu\u1ea3n_l\u00fd_k\u1ebft_n\u1ed1i_&amp;_\u0111\u1ed3ng_b\u1ed9_(Connection_&amp;_Concurrency)\"><strong>V\u1ec1 m\u00f4 h\u00ecnh qu\u1ea3n l\u00fd k\u1ebft n\u1ed1i &amp; \u0111\u1ed3ng b\u1ed9 (Connection &amp; Concurrency)<\/strong><\/h3>\n\n\n\n<p>\u0110\u00e2y l\u00e0 kh\u00e1c bi\u1ec7t c\u1ed1t l\u00f5i v\u00e0 l\u00e0 \u0111\u1ed9ng l\u1ef1c ch\u00ednh cho s\u1ef1 ra \u0111\u1eddi c\u1ee7a c\u00e1c phi\u00ean b\u1ea3n m\u1edbi.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>HTTP\/1.0: M\u1ed7i y\u00eau c\u1ea7u m\u1ed9t k\u1ebft n\u1ed1i m\u1edbi<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>M\u00f4 h\u00ecnh:<\/strong> Khi tr\u00ecnh duy\u1ec7t mu\u1ed1n m\u1ed9t t\u1ec7p (HTML, CSS, \u1ea3nh), giao th\u1ee9c s\u1ebd m\u1edf m\u1ed9t k\u1ebft n\u1ed1i TCP \u0111\u1ebfn m\u00e1y ch\u1ee7, t\u1ea3i t\u1ec7p \u0111\u00f3 v\u1ec1, r\u1ed3i \u0111\u00f3ng k\u1ebft n\u1ed1i. N\u1ebfu m\u1ed9t trang web c\u00f3 100 t\u00e0i nguy\u00ean, n\u00f3 ph\u1ea3i l\u1eb7p l\u1ea1i qu\u00e1 tr\u00ecnh n\u00e0y 100 l\u1ea7n.<\/li>\n\n\n\n<li><strong>H\u1ea1n ch\u1ebf:<\/strong> Vi\u1ec7c thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i TCP (qu\u00e1 tr\u00ecnh &#8220;b\u1eaft tay 3 b\u01b0\u1edbc&#8221;) t\u1ed1n nhi\u1ec1u th\u1eddi gian v\u00e0 t\u00e0i nguy\u00ean. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra \u0111\u1ed9 tr\u1ec5 r\u1ea5t l\u1edbn.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>HTTP\/1.1: K\u1ebft n\u1ed1i b\u1ec1n b\u1ec9 (Persistent Connection)<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>C\u1ea3i ti\u1ebfn:<\/strong> Gi\u1edbi thi\u1ec7u Keep-Alive l\u00e0m m\u1eb7c \u0111\u1ecbnh. Tr\u00ecnh duy\u1ec7t c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng m\u1ed9t k\u1ebft n\u1ed1i TCP duy nh\u1ea5t \u0111\u1ec3 g\u1eedi nhi\u1ec1u y\u00eau c\u1ea7u li\u00ean ti\u1ebfp.<\/li>\n\n\n\n<li><strong>M\u00f4 h\u00ecnh:<\/strong> M\u1edf m\u1ed9t k\u1ebft n\u1ed1i, t\u1ea3i HTML, r\u1ed3i v\u1eabn tr\u00ean k\u1ebft n\u1ed1i \u0111\u00f3, t\u1ea3i ti\u1ebfp CSS, JS, \u1ea3nh&#8230; \u0110i\u1ec1u n\u00e0y lo\u1ea1i b\u1ecf chi ph\u00ed thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i l\u1eb7p \u0111i l\u1eb7p l\u1ea1i.<\/li>\n\n\n\n<li><strong>H\u1ea1n ch\u1ebf:<\/strong> G\u1eb7p ph\u1ea3i v\u1ea5n \u0111\u1ec1 <strong>Head-of-Line (HOL) Blocking<\/strong> \u1edf t\u1ea7ng \u1ee9ng d\u1ee5ng. C\u00e1c y\u00eau c\u1ea7u ph\u1ea3i \u0111\u01b0\u1ee3c x\u1eed l\u00fd tu\u1ea7n t\u1ef1. N\u1ebfu y\u00eau c\u1ea7u \u0111\u1ea7u ti\u00ean (v\u00ed d\u1ee5: t\u1ea3i m\u1ed9t file JS l\u1edbn) b\u1ecb ch\u1eadm, t\u1ea5t c\u1ea3 c\u00e1c y\u00eau c\u1ea7u ph\u00eda sau (v\u00ed d\u1ee5: c\u00e1c \u1ea3nh nh\u1ecf) \u0111\u1ec1u ph\u1ea3i ch\u1edd, d\u00f9 m\u00e1y ch\u1ee7 \u0111\u00e3 s\u1eb5n s\u00e0ng x\u1eed l\u00fd ch\u00fang.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>HTTP\/2: Gh\u00e9p k\u00eanh th\u1ef1c s\u1ef1 (True Multiplexing)<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>C\u1ea3i ti\u1ebfn:<\/strong> Tr\u00ean m\u1ed9t k\u1ebft n\u1ed1i TCP duy nh\u1ea5t, HTTP\/2 c\u00f3 th\u1ec3 ph\u00e2n lu\u1ed3ng (streams) d\u1eef li\u1ec7u. Nhi\u1ec1u y\u00eau c\u1ea7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c g\u1eedi \u0111i \u0111\u1ed3ng th\u1eddi v\u00e0 c\u00e1c ph\u1ea3n h\u1ed3i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c tr\u1ea3 v\u1ec1 xen k\u1ebd, kh\u00f4ng c\u1ea7n theo th\u1ee9 t\u1ef1.<\/li>\n\n\n\n<li><strong>M\u00f4 h\u00ecnh:<\/strong> Gi\u1ed1ng nh\u01b0 m\u1ed9t con \u0111\u01b0\u1eddng cao t\u1ed1c \u0111a l\u00e0n thay v\u00ec \u0111\u01b0\u1eddng m\u1ed9t l\u00e0n c\u1ee7a HTTP\/1.1. N\u1ebfu m\u1ed9t &#8220;xe&#8221; (ph\u1ea3n h\u1ed3i) b\u1ecb k\u1eb9t, c\u00e1c &#8220;xe&#8221; \u1edf l\u00e0n kh\u00e1c v\u1eabn c\u00f3 th\u1ec3 v\u01b0\u1ee3t l\u00ean.<\/li>\n\n\n\n<li><strong>H\u1ea1n ch\u1ebf:<\/strong> V\u1eabn c\u00f2n <strong>HOL Blocking<\/strong> \u1edf t\u1ea7ng giao v\u1eadn (transport layer). V\u00ec HTTP\/2 ch\u1ea1y tr\u00ean TCP, n\u1ebfu m\u1ed9t g\u00f3i tin TCP b\u1ecb m\u1ea5t tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n, t\u1ea5t c\u1ea3 c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u (d\u00f9 thu\u1ed9c v\u1ec1 c\u00e1c y\u00eau c\u1ea7u kh\u00e1c nhau) \u0111\u1ec1u ph\u1ea3i d\u1eebng l\u1ea1i ch\u1edd g\u00f3i tin \u0111\u00f3 \u0111\u01b0\u1ee3c g\u1eedi l\u1ea1i.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>HTTP\/3: Lo\u1ea1i b\u1ecf HOL Blocking v\u1edbi QUIC<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>C\u1ea3i ti\u1ebfn:<\/strong> Thay \u0111\u1ed5i n\u1ec1n t\u1ea3ng cu\u1ed9c ch\u01a1i. HTTP\/3 kh\u00f4ng ch\u1ea1y tr\u00ean TCP m\u00e0 ch\u1ea1y tr\u00ean <strong>QUIC<\/strong>, m\u1ed9t giao th\u1ee9c m\u1edbi ho\u1ea1t \u0111\u1ed9ng tr\u00ean n\u1ec1n UDP.<\/li>\n\n\n\n<li><strong>M\u00f4 h\u00ecnh:<\/strong> QUIC t\u1ef1 qu\u1ea3n l\u00fd c\u00e1c lu\u1ed3ng c\u1ee7a ri\u00eang n\u00f3. N\u1ebfu m\u1ed9t g\u00f3i tin c\u1ee7a m\u1ed9t lu\u1ed3ng b\u1ecb m\u1ea5t, n\u00f3 ch\u1ec9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn lu\u1ed3ng \u0111\u00f3. C\u00e1c lu\u1ed3ng kh\u00e1c v\u1eabn ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng. \u0110i\u1ec1u n\u00e0y \u0111\u00e3 gi\u1ea3i quy\u1ebft tri\u1ec7t \u0111\u1ec3 v\u1ea5n \u0111\u1ec1 HOL Blocking.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-5.png\" alt=\"S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa HTTP\/1.0, HTTP\/1.1, HTTP\/2 v\u00e0 HTTP\/3\" class=\"wp-image-120129\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-5.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-5-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa HTTP\/1.0, HTTP\/1.1, HTTP\/2 v\u00e0 HTTP\/3<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"V\u1ec1_giao_th\u1ee9c_n\u1ec1n_v\u00e0_\u0111\u1ecbnh_d\u1ea1ng_d\u1eef_li\u1ec7u\"><a id=\"post-120120-_tnuedlg5thui\"><\/a><strong>V\u1ec1 giao th\u1ee9c n\u1ec1n v\u00e0 \u0111\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>HTTP\/1.0 &amp; HTTP\/1.1:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Giao th\u1ee9c n\u1ec1n:<\/strong> TCP<\/li>\n\n\n\n<li><strong>\u0110\u1ecbnh d\u1ea1ng:<\/strong> D\u1ea1ng v\u0103n b\u1ea3n (text-based). Con ng\u01b0\u1eddi c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c c\u00e1c y\u00eau c\u1ea7u\/ph\u1ea3n h\u1ed3i, nh\u01b0ng m\u00e1y t\u00ednh x\u1eed l\u00fd ch\u1eadm h\u01a1n v\u00e0 d\u1ec5 b\u1ecb l\u1ed7i c\u00fa ph\u00e1p.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>HTTP\/2:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Giao th\u1ee9c n\u1ec1n:<\/strong> TCP<\/li>\n\n\n\n<li><strong>\u0110\u1ecbnh d\u1ea1ng:<\/strong> D\u1ea1ng nh\u1ecb ph\u00e2n (binary). D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i th\u00e0nh c\u00e1c &#8220;khung&#8221; (frames). Hi\u1ec7u qu\u1ea3 h\u01a1n, g\u1ecdn nh\u1eb9 h\u01a1n v\u00e0 \u00edt b\u1ecb l\u1ed7i h\u01a1n cho m\u00e1y t\u00ednh x\u1eed l\u00fd.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>HTTP\/3:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Giao th\u1ee9c n\u1ec1n:<\/strong> QUIC (tr\u00ean n\u1ec1n UDP)<\/li>\n\n\n\n<li><strong>\u0110\u1ecbnh d\u1ea1ng:<\/strong> D\u1ea1ng nh\u1ecb ph\u00e2n, t\u01b0\u01a1ng t\u1ef1 HTTP\/2.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-6.png\" alt=\"V\u1ec1 giao th\u1ee9c n\u1ec1n v\u00e0 \u0111\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u\" class=\"wp-image-120131\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-6.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-6-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>V\u1ec1 giao th\u1ee9c n\u1ec1n v\u00e0 \u0111\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"V\u1ec1_kh\u1ea3_n\u0103ng_n\u00e9n_ti\u00eau_\u0111\u1ec1_(Header_Compression)\"><a id=\"post-120120-_oy4xqxb2lrdr\"><\/a><strong>V\u1ec1 kh\u1ea3 n\u0103ng n\u00e9n ti\u00eau \u0111\u1ec1 (Header Compression)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>HTTP\/1.0 &amp; HTTP\/1.1:<\/strong> Kh\u00f4ng n\u00e9n ti\u00eau \u0111\u1ec1. V\u1edbi m\u1ed7i y\u00eau c\u1ea7u, tr\u00ecnh duy\u1ec7t ph\u1ea3i g\u1eedi l\u1ea1i to\u00e0n b\u1ed9 c\u00e1c ti\u00eau \u0111\u1ec1 (user-agent, cookies, accept, v.v.), g\u00e2y ra s\u1ef1 l\u00e3ng ph\u00ed b\u0103ng th\u00f4ng \u0111\u00e1ng k\u1ec3.<\/li>\n\n\n\n<li><strong>HTTP\/2:<\/strong> S\u1eed d\u1ee5ng thu\u1eadt to\u00e1n <strong>HPACK<\/strong>. N\u00f3 duy tr\u00ec m\u1ed9t b\u1ea3ng c\u00e1c ti\u00eau \u0111\u1ec1 \u0111\u00e3 \u0111\u01b0\u1ee3c g\u1eedi. \u1ede c\u00e1c l\u1ea7n y\u00eau c\u1ea7u sau, n\u00f3 ch\u1ec9 c\u1ea7n g\u1eedi nh\u1eefng thay \u0111\u1ed5i, gi\u00fap gi\u1ea3m k\u00edch th\u01b0\u1edbc ph\u1ea7n ti\u00eau \u0111\u1ec1 xu\u1ed1ng r\u1ea5t nhi\u1ec1u.<\/li>\n\n\n\n<li><strong>HTTP\/3:<\/strong> S\u1eed d\u1ee5ng m\u1ed9t thu\u1eadt to\u00e1n c\u1ea3i ti\u1ebfn h\u01a1n g\u1ecdi l\u00e0 <strong>QPACK<\/strong>, \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho c\u00e1c lu\u1ed3ng \u0111\u1ed9c l\u1eadp c\u1ee7a QUIC.<\/li>\n<\/ul>\n\n\n\n<p>B\u1ea3ng so s\u00e1nh nhanh:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\n<p><strong>T\u00ednh n\u0103ng<\/strong><\/p>\n<\/th><th>\n<p><strong>HTTP\/1.0<\/strong><\/p>\n<\/th><th>\n<p><strong>HTTP\/1.1<\/strong><\/p>\n<\/th><th>\n<p><strong>HTTP\/2<\/strong><\/p>\n<\/th><th>\n<p><strong>HTTP\/3<\/strong><\/p>\n<\/th><\/tr><tr><th>\n<p><strong>K\u1ebft n\u1ed1i<\/strong><\/p>\n<\/th><th>\n<p>M\u1ed9t k\u1ebft n\u1ed1i cho m\u1ed7i y\u00eau c\u1ea7u<\/p>\n<\/th><th>\n<p>K\u1ebft n\u1ed1i b\u1ec1n b\u1ec9, t\u00e1i s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c<\/p>\n<\/th><th>\n<p>M\u1ed9t k\u1ebft n\u1ed1i duy nh\u1ea5t cho nhi\u1ec1u y\u00eau c\u1ea7u<\/p>\n<\/th><th>\n<p>M\u1ed9t k\u1ebft n\u1ed1i duy nh\u1ea5t, qu\u1ea3n l\u00fd b\u1edfi QUIC<\/p>\n<\/th><\/tr><tr><th>\n<p><strong>Gh\u00e9p k\u00eanh<\/strong><\/p>\n<\/th><th>\n<p>Kh\u00f4ng<\/p>\n<\/th><th>\n<p>Kh\u00f4ng (c\u00f3 Pipelining nh\u01b0ng h\u1ea1n ch\u1ebf)<\/p>\n<\/th><th>\n<p>C\u00f3 (Multiplexing)<\/p>\n<\/th><th>\n<p>C\u00f3, \u1edf c\u1ea5p \u0111\u1ed9 cao h\u01a1n v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n<\/p>\n<\/th><\/tr><tr><th>\n<p><strong>Head-of-Line Blocking<\/strong><\/p>\n<\/th><th>\n<p>Kh\u00f4ng \u00e1p d\u1ee5ng<\/p>\n<\/th><th>\n<p>C\u00f3 (\u1edf t\u1ea7ng \u1ee9ng d\u1ee5ng)<\/p>\n<\/th><th>\n<p>\u0110\u00e3 gi\u1ea3i quy\u1ebft \u1edf t\u1ea7ng \u1ee9ng d\u1ee5ng, nh\u01b0ng c\u00f2n \u1edf t\u1ea7ng giao v\u1eadn (do TCP)<\/p>\n<\/th><th>\n<p>\u0110\u00e3 gi\u1ea3i quy\u1ebft tri\u1ec7t \u0111\u1ec3<\/p>\n<\/th><\/tr><tr><th>\n<p><strong>Giao th\u1ee9c n\u1ec1n<\/strong><\/p>\n<\/th><th>\n<p>TCP<\/p>\n<\/th><th>\n<p>TCP<\/p>\n<\/th><th>\n<p>TCP<\/p>\n<\/th><th>\n<p>QUIC (tr\u00ean UDP)<\/p>\n<\/th><\/tr><tr><th>\n<p><strong>\u0110\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u<\/strong><\/p>\n<\/th><th>\n<p>V\u0103n b\u1ea3n<\/p>\n<\/th><th>\n<p>V\u0103n b\u1ea3n<\/p>\n<\/th><th>\n<p>Nh\u1ecb ph\u00e2n<\/p>\n<\/th><th>\n<p>Nh\u1ecb ph\u00e2n<\/p>\n<\/th><\/tr><tr><th>\n<p><strong>N\u00e9n Header<\/strong><\/p>\n<\/th><th>\n<p>Kh\u00f4ng<\/p>\n<\/th><th>\n<p>Kh\u00f4ng<\/p>\n<\/th><th>\n<p>C\u00f3 (HPACK)<\/p>\n<\/th><th>\n<p>C\u00f3 (QPACK)<\/p>\n<\/th><\/tr><tr><th>\n<p><strong>Thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i<\/strong><\/p>\n<\/th><th>\n<p>Ch\u1eadm (TCP handshake)<\/p>\n<\/th><th>\n<p>Ch\u1eadm (TCP handshake)<\/p>\n<\/th><th>\n<p>Nhanh h\u01a1n n\u1ebfu t\u00e1i s\u1eed d\u1ee5ng k\u1ebft n\u1ed1i<\/p>\n<\/th><th>\n<p>R\u1ea5t nhanh (0-RTT)<\/p>\n<\/th><\/tr><tr><th>\n<p><strong>B\u1ea3o m\u1eadt<\/strong><\/p>\n<\/th><th>\n<p>T\u00f9y ch\u1ecdn (HTTP)<\/p>\n<\/th><th>\n<p>T\u00f9y ch\u1ecdn (HTTP)<\/p>\n<\/th><th>\n<p>B\u1eaft bu\u1ed9c tr\u00ean th\u1ef1c t\u1ebf (HTTPS)<\/p>\n<\/th><th>\n<p>B\u1eaft bu\u1ed9c (HTTPS)<\/p>\n<\/th><\/tr><\/thead><\/table><\/figure>\n\n\n\n<h2 id=\"HTTP\/3_\u1ea3nh_h\u01b0\u1edfng_\u0111\u1ebfn_SEO_v\u00e0_tr\u1ea3i_nghi\u1ec7m_ng\u01b0\u1eddi_d\u00f9ng_nh\u01b0_th\u1ebf_n\u00e0o?\"><a id=\"post-120120-_lw8txw2g63yo\"><\/a>HTTP\/3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn SEO v\u00e0 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n\n\n\n<h3 id=\"\u0110\u1ed1i_v\u1edbi_tr\u1ea3i_nghi\u1ec7m_ng\u01b0\u1eddi_d\u00f9ng_(UX)\"><a id=\"post-120120-_63ee8z4172md\"><\/a><strong>\u0110\u1ed1i v\u1edbi tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng (UX)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>C\u1ea3m gi\u00e1c t\u1ee9c th\u00ec:<\/strong> Trang web b\u1eaft \u0111\u1ea7u t\u1ea3i g\u1ea7n nh\u01b0 ngay l\u1eadp t\u1ee9c nh\u1edd k\u1ebft n\u1ed1i nhanh h\u01a1n (0-RTT), gi\u1ea3m \u0111\u00e1ng k\u1ec3 th\u1eddi gian ch\u1edd \u0111\u1ee3i ban \u0111\u1ea7u.<\/li>\n\n\n\n<li><strong>M\u01b0\u1ee3t m\u00e0 tr\u00ean di \u0111\u1ed9ng:<\/strong> Ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n hay m\u1ea5t k\u1ebft n\u1ed1i khi di chuy\u1ec3n gi\u1eefa m\u1ea1ng Wi-Fi v\u00e0 4G\/5G, mang l\u1ea1i tr\u1ea3i nghi\u1ec7m li\u1ec1n m\u1ea1ch.<\/li>\n\n\n\n<li><strong>T\u1ea3i trang hi\u1ec7u qu\u1ea3:<\/strong> Lo\u1ea1i b\u1ecf t\u00ecnh tr\u1ea1ng &#8220;t\u1eafc ngh\u1ebdn&#8221; (Head-of-Line Blocking), cho ph\u00e9p nhi\u1ec1u th\u00e0nh ph\u1ea7n c\u1ee7a trang (\u1ea3nh, script) t\u1ea3i \u0111\u1ed3ng th\u1eddi v\u00e0 nhanh ch\u00f3ng h\u01a1n.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-7.png\" alt=\"HTTP\/3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn SEO v\u00e0 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng nh\u01b0 th\u1ebf n\u00e0o?\" class=\"wp-image-120130\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-7.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/su-khac-biet-giua-http-1-0-http-1-1-http-2-va-http-3-7-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>HTTP\/3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn SEO v\u00e0 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"\u0110\u1ed1i_v\u1edbi_SEO\"><a id=\"post-120120-_ew364tro6hf1\"><\/a><strong>\u0110\u1ed1i v\u1edbi SEO<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>C\u1ea3i thi\u1ec7n Core Web Vitals:<\/strong> T\u1ed1c \u0111\u1ed9 t\u1ea3i nhanh h\u01a1n gi\u00fap t\u0103ng \u0111i\u1ec3m LCP (th\u1eddi gian hi\u1ec3n th\u1ecb n\u1ed9i dung l\u1edbn nh\u1ea5t) v\u00e0 INP (kh\u1ea3 n\u0103ng ph\u1ea3n h\u1ed3i t\u01b0\u01a1ng t\u00e1c), nh\u1eefng y\u1ebfu t\u1ed1 x\u1ebfp h\u1ea1ng quan tr\u1ecdng c\u1ee7a Google.<\/li>\n\n\n\n<li><strong>L\u1ee3i th\u1ebf v\u1edbi Mobile-First Indexing:<\/strong> Tr\u1ea3i nghi\u1ec7m di \u0111\u1ed9ng v\u01b0\u1ee3t tr\u1ed9i l\u00e0 m\u1ed9t t\u00edn hi\u1ec7u x\u1ebfp h\u1ea1ng m\u1ea1nh m\u1ebd, v\u00ec Google \u01b0u ti\u00ean phi\u00ean b\u1ea3n mobile c\u1ee7a website.<\/li>\n\n\n\n<li><strong>T\u00edn hi\u1ec7u ng\u01b0\u1eddi d\u00f9ng t\u1ed1t h\u01a1n:<\/strong> T\u1ed1c \u0111\u1ed9 cao gi\u00fap gi\u1ea3m t\u1ef7 l\u1ec7 tho\u00e1t (bounce rate) v\u00e0 t\u0103ng t\u01b0\u01a1ng t\u00e1c. Google coi \u0111\u00e2y l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a m\u1ed9t trang web ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n th\u1ee9 h\u1ea1ng.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"H\u01b0\u1edbng_d\u1eabn_c\u00e1ch_ki\u1ec3m_tra_website_\u0111ang_d\u00f9ng_HTTP_phi\u00ean_b\u1ea3n_n\u00e0o\"><a id=\"post-120120-_ie6zchx3eq76\"><\/a>H\u01b0\u1edbng d\u1eabn c\u00e1ch ki\u1ec3m tra website \u0111ang d\u00f9ng HTTP phi\u00ean b\u1ea3n n\u00e0o<\/h2>\n\n\n\n<h3 id=\"Ph\u01b0\u01a1ng_ph\u00e1p_1:_S\u1eed_d\u1ee5ng_c\u00f4ng_c\u1ee5_cho_nh\u00e0_ph\u00e1t_tri\u1ec3n_(Developer_Tools)\"><a id=\"post-120120-_rmjesd3vetvz\"><\/a><strong>Ph\u01b0\u01a1ng ph\u00e1p 1: S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 cho nh\u00e0 ph\u00e1t tri\u1ec3n (Developer Tools)<\/strong><\/h3>\n\n\n\n<p>\u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p tr\u1ef1c ti\u1ebfp v\u00e0 \u0111\u00e1ng tin c\u1eady nh\u1ea5t.<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 1: <\/strong>M\u1edf <strong>Developer Tools<\/strong> b\u1eb1ng c\u00e1ch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nh\u1ea5n ph\u00edm <strong>F12<\/strong> tr\u00ean b\u00e0n ph\u00edm.<\/li>\n\n\n\n<li>Ho\u1eb7c, <strong>nh\u1ea5p chu\u1ed9t ph\u1ea3i<\/strong> v\u00e0o b\u1ea5t c\u1ee9 \u0111\u00e2u tr\u00ean trang web v\u00e0 ch\u1ecdn <strong>Inspect<\/strong> (Ki\u1ec3m tra).<\/li>\n<\/ul>\n\n\n\n<p><strong>B\u01b0\u1edbc 2:<\/strong> \u1ede ph\u00eda tr\u00ean c\u1ee7a c\u1eeda s\u1ed5 Developer Tools v\u1eeba hi\u1ec7n ra, h\u00e3y t\u00ecm v\u00e0 nh\u1ea5p v\u00e0o tab c\u00f3 t\u00ean l\u00e0 <strong>Network<\/strong>.<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 3: <\/strong>Trong khi tab <strong>Network<\/strong> \u0111ang m\u1edf, h\u00e3y t\u1ea3i l\u1ea1i trang web b\u1eb1ng c\u00e1ch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nh\u1ea5n <strong>Ctrl + R<\/strong> (ho\u1eb7c <strong>Cmd + R<\/strong> tr\u00ean Mac).<\/li>\n\n\n\n<li>Ho\u1eb7c nh\u1ea5n v\u00e0o n\u00fat t\u1ea3i l\u1ea1i c\u1ee7a tr\u00ecnh duy\u1ec7t.<\/li>\n<\/ul>\n\n\n\n<p>B\u1ea1n s\u1ebd th\u1ea5y m\u1ed9t danh s\u00e1ch c\u00e1c y\u00eau c\u1ea7u m\u1ea1ng (requests) b\u1eaft \u0111\u1ea7u xu\u1ea5t hi\u1ec7n trong tab Network khi trang \u0111\u01b0\u1ee3c t\u1ea3i.<\/p>\n\n\n\n<p><a id=\"post-120120-_1yn6ckylr7ft\"><\/a><strong>B\u01b0\u1edbc 4: <\/strong>B\u00e2y gi\u1edd, h\u00e3y nh\u00ecn v\u00e0o danh s\u00e1ch c\u00e1c y\u00eau c\u1ea7u. B\u1ea1n c\u1ea7n t\u00ecm c\u1ed9t c\u00f3 t\u00ean l\u00e0 <strong>Protocol<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" width=\"1717\" height=\"896\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-1.jpg\" alt=\"S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 cho nh\u00e0 ph\u00e1t tri\u1ec3n (Developer Tools)\" class=\"wp-image-120121\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-1.jpg 1717w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-1-300x157.jpg 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-1-1024x534.jpg 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-1-768x401.jpg 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-1-1536x802.jpg 1536w\" sizes=\"(max-width: 1717px) 100vw, 1717px\" \/><figcaption class=\"wp-element-caption\"><strong>S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 cho nh\u00e0 ph\u00e1t tri\u1ec3n (Developer Tools)<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p><a id=\"post-120120-_jx0kon5llwa2\"><\/a> C\u1ed9t n\u00e0y s\u1ebd cho b\u1ea1n bi\u1ebft ch\u00ednh x\u00e1c phi\u00ean b\u1ea3n HTTP \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea3i t\u1eebng t\u00e0i nguy\u00ean.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>h2<\/strong> c\u00f3 ngh\u0129a l\u00e0 <strong>HTTP\/2<\/strong><\/li>\n\n\n\n<li><strong>h3 <\/strong>c\u00f3 ngh\u0129a l\u00e0 <strong>HTTP\/3<\/strong><\/li>\n\n\n\n<li><strong>http\/1.1<\/strong> c\u00f3 ngh\u0129a l\u00e0 <strong>HTTP\/1.1<\/strong><\/li>\n<\/ul>\n\n\n\n<p><strong>\ud83d\udca1 M\u1eb9o:<\/strong> N\u1ebfu b\u1ea1n kh\u00f4ng th\u1ea5y c\u1ed9t &#8220;<strong>Protocol<\/strong>&#8220;, h\u00e3y <strong>nh\u1ea5p chu\u1ed9t ph\u1ea3i<\/strong> v\u00e0o b\u1ea5t k\u1ef3 ti\u00eau \u0111\u1ec1 c\u1ed9t n\u00e0o (v\u00ed d\u1ee5: Name, Status, Type) v\u00e0 m\u1ed9t danh s\u00e1ch c\u00e1c c\u1ed9t c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb s\u1ebd xu\u1ea5t hi\u1ec7n. Ch\u1ec9 c\u1ea7n <strong>ch\u1ecdn &#8220;Protocol&#8221;<\/strong> \u0111\u1ec3 th\u00eam n\u00f3 v\u00e0o b\u1ea3ng.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" width=\"1696\" height=\"897\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-2.jpg\" alt=\"S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 cho nh\u00e0 ph\u00e1t tri\u1ec3n (Developer Tools)\" class=\"wp-image-120122\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-2.jpg 1696w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-2-300x159.jpg 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-2-1024x542.jpg 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-2-768x406.jpg 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-2-1536x812.jpg 1536w\" sizes=\"(max-width: 1696px) 100vw, 1696px\" \/><figcaption class=\"wp-element-caption\"><strong>S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 cho nh\u00e0 ph\u00e1t tri\u1ec3n (Developer Tools)<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<h3 id=\"Ph\u01b0\u01a1ng_ph\u00e1p_2:_S\u1eed_d\u1ee5ng_c\u00e1c_c\u00f4ng_c\u1ee5_ki\u1ec3m_tra_tr\u1ef1c_tuy\u1ebfn\"><a id=\"post-120120-_lws49lyxlwfi\"><\/a><strong>Ph\u01b0\u01a1ng ph\u00e1p 2: S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra tr\u1ef1c tuy\u1ebfn<\/strong><\/h3>\n\n\n\n<p>N\u1ebfu b\u1ea1n mu\u1ed1n m\u1ed9t c\u00e1ch nhanh h\u01a1n m\u00e0 kh\u00f4ng c\u1ea7n m\u1edf Developer Tools, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c trang web ki\u1ec3m tra online.<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 1: <\/strong>Truy c\u1eadp Google v\u00e0 t\u00ecm ki\u1ebfm v\u1edbi c\u00e1c t\u1eeb kh\u00f3a nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\n<ul class=\"wp-block-list\">\n<li>&#8220;HTTP version checker&#8221;<\/li>\n\n\n\n<li>&#8220;HTTP\/2 test&#8221;<\/li>\n\n\n\n<li>&#8220;HTTP\/3 test&#8221;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" width=\"1127\" height=\"734\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-3.png\" alt=\"S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra tr\u1ef1c tuy\u1ebfn\" class=\"wp-image-120123\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-3.png 1127w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-3-300x195.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-3-1024x667.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-3-768x500.png 768w\" sizes=\"(max-width: 1127px) 100vw, 1127px\" \/><figcaption class=\"wp-element-caption\"><strong>S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra tr\u1ef1c tuy\u1ebfn<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 2:<\/strong> Ch\u1ecdn m\u1ed9t trong c\u00e1c c\u00f4ng c\u1ee5 h\u00e0ng \u0111\u1ea7u (v\u00ed d\u1ee5 nh\u01b0 c\u1ee7a <a href=\"https:\/\/tools.keycdn.com\/http2-test\" target=\"_blank\" rel=\"noreferrer noopener nofollow\"><strong>KeyCDN<\/strong><\/a>).<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 3: <\/strong>D\u00e1n URL c\u1ee7a trang web b\u1ea1n mu\u1ed1n ki\u1ec3m tra v\u00e0o v\u00e0 c\u00f4ng c\u1ee5 s\u1ebd cho b\u1ea1n bi\u1ebft k\u1ebft qu\u1ea3.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" width=\"982\" height=\"567\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-4.png\" alt=\"S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra tr\u1ef1c tuy\u1ebfn\" class=\"wp-image-120124\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-4.png 982w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-4-300x173.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/10\/word-image-120120-4-768x443.png 768w\" sizes=\"(max-width: 982px) 100vw, 982px\" \/><figcaption class=\"wp-element-caption\"><strong>S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra tr\u1ef1c tuy\u1ebfn<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<h3 id=\"K\u1ebft_lu\u1eadn\"><a id=\"post-120120-_bswz1iq38344\"><\/a><strong>K\u1ebft lu\u1eadn<\/strong><\/h3>\n\n\n\n<p>Nh\u00ecn l\u1ea1i ch\u1eb7ng \u0111\u01b0\u1eddng t\u1eeb HTTP\/1.0 \u0111\u1ebfn HTTP\/3, ch\u00fang ta c\u00f3 th\u1ec3 th\u1ea5y m\u1ed9t xu h\u01b0\u1edbng r\u00f5 r\u00e0ng: Internet kh\u00f4ng ng\u1eebng n\u1ed7 l\u1ef1c \u0111\u1ec3 tr\u1edf n\u00ean nhanh h\u01a1n, hi\u1ec7u qu\u1ea3 h\u01a1n v\u00e0 an to\u00e0n h\u01a1n. M\u1ed7i phi\u00ean b\u1ea3n m\u1edbi ra \u0111\u1eddi kh\u00f4ng ch\u1ec9 \u0111\u1ec3 v\u00e1 nh\u1eefng l\u1ed7 h\u1ed5ng c\u1ee7a phi\u00ean b\u1ea3n c\u0169 m\u00e0 c\u00f2n m\u1edf ra nh\u1eefng kh\u1ea3 n\u0103ng m\u1edbi cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 mang l\u1ea1i tr\u1ea3i nghi\u1ec7m v\u01b0\u1ee3t tr\u1ed9i cho ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i.<\/p>\n\n\n\n<p>Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i sang HTTP\/3 kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn xa x\u1ec9, m\u00e0 \u0111ang d\u1ea7n tr\u1edf th\u00e0nh m\u1ed9t ti\u00eau chu\u1ea9n c\u1ea7n thi\u1ebft cho b\u1ea5t k\u1ef3 website n\u00e0o mu\u1ed1n chi\u1ebfm \u01b0u th\u1ebf trong cu\u1ed9c \u0111ua v\u1ec1 t\u1ed1c \u0111\u1ed9 v\u00e0 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng. Hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c giao th\u1ee9c n\u00e0y ch\u00ednh l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean \u0111\u1ec3 b\u1ea1n t\u1ed1i \u01b0u h\u00f3a &#8220;m\u1ea3nh \u0111\u1ea5t&#8221; c\u1ee7a m\u00ecnh tr\u00ean kh\u00f4ng gian m\u1ea1ng r\u1ed9ng l\u1edbn.<\/p>\n\n\n\n<h2 id=\"Nh\u1eefng_c\u00e2u_h\u1ecfi_th\u01b0\u1eddng_g\u1eb7p\"><a id=\"post-120120-_gd98def8swiu\"><\/a>Nh\u1eefng c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"&quot;Head-of-Line_Blocking&quot;_(HOL_Blocking)_l\u00e0_g\u00ec?\">&quot;Head-of-Line Blocking&quot; (HOL Blocking) l\u00e0 g\u00ec?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>\u0110\u00e2y l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng t\u1eafc ngh\u1ebdn khi m\u1ed9t y\u00eau c\u1ea7u ch\u1eadm ch\u1ea1p \u1edf ph\u00eda tr\u01b0\u1edbc l\u00e0m t\u1ea5t c\u1ea3 c\u00e1c y\u00eau c\u1ea7u ph\u00eda sau n\u00f3 ph\u1ea3i ch\u1edd \u0111\u1ee3i, ngay c\u1ea3 khi ch\u00fang \u0111\u00e3 s\u1eb5n s\u00e0ng \u0111\u1ec3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd. H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ed9t chi\u1ebfc xe ch\u1ea1y ch\u1eadm \u1edf \u0111\u1ea7u m\u1ed9t con \u0111\u01b0\u1eddng m\u1ed9t l\u00e0n xe, bu\u1ed9c t\u1ea5t c\u1ea3 c\u00e1c xe ph\u00eda sau ph\u1ea3i \u0111i ch\u1eadm theo.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"S\u1ef1_kh\u00e1c_bi\u1ec7t_l\u1edbn_nh\u1ea5t_gi\u1eefa_HTTP\/1.1_v\u00e0_HTTP\/2_l\u00e0_g\u00ec?\">S\u1ef1 kh\u00e1c bi\u1ec7t l\u1edbn nh\u1ea5t gi\u1eefa HTTP\/1.1 v\u00e0 HTTP\/2 l\u00e0 g\u00ec?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>S\u1ef1 kh\u00e1c bi\u1ec7t c\u1ed1t l\u00f5i l\u00e0 Multiplexing (gh\u00e9p k\u00eanh). Trong khi HTTP\/1.1 ph\u1ea3i x\u1eed l\u00fd c\u00e1c y\u00eau c\u1ea7u m\u1ed9t c\u00e1ch tu\u1ea7n t\u1ef1 tr\u00ean m\u1ed9t k\u1ebft n\u1ed1i (g\u00e2y ra t\u1eafc ngh\u1ebdn), HTTP\/2 c\u00f3 th\u1ec3 x\u1eed l\u00fd nhi\u1ec1u y\u00eau c\u1ea7u v\u00e0 ph\u1ea3n h\u1ed3i \u0111\u1ed3ng th\u1eddi tr\u00ean c\u00f9ng m\u1ed9t k\u1ebft n\u1ed1i, gi\u1ed1ng nh\u01b0 \u0111i t\u1eeb \u0111\u01b0\u1eddng m\u1ed9t l\u00e0n l\u00ean cao t\u1ed1c \u0111a l\u00e0n.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"Website_c\u1ee7a_t\u00f4i_c\u00f3_th\u1ef1c_s\u1ef1_c\u1ea7n_n\u00e2ng_c\u1ea5p_l\u00ean_HTTP\/3_kh\u00f4ng?\">Website c\u1ee7a t\u00f4i c\u00f3 th\u1ef1c s\u1ef1 c\u1ea7n n\u00e2ng c\u1ea5p l\u00ean HTTP\/3 kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>M\u1eb7c d\u00f9 kh\u00f4ng b\u1eaft bu\u1ed9c, vi\u1ec7c n\u00e2ng c\u1ea5p \u0111\u01b0\u1ee3c \u0111\u1eb7c bi\u1ec7t khuy\u1ebfn ngh\u1ecb n\u1ebfu t\u1ed1c \u0111\u1ed9, tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng tr\u00ean di \u0111\u1ed9ng, v\u00e0 c\u00e1c ch\u1ec9 s\u1ed1 Core Web Vitals l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u c\u1ee7a b\u1ea1n. \u0110\u1ed1i v\u1edbi c\u00e1c trang th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed, tin t\u1ee9c, ho\u1eb7c c\u00e1c \u1ee9ng d\u1ee5ng web ph\u1ee9c t\u1ea1p, l\u1ee3i \u00edch l\u00e0 r\u1ea5t \u0111\u00e1ng k\u1ec3.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"HTTP_v\u00e0_HTTPS_kh\u00e1c_nhau_nh\u01b0_th\u1ebf_n\u00e0o?\">HTTP v\u00e0 HTTPS kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>HTTPS ch\u00ednh l\u00e0 HTTP nh\u01b0ng c\u00f3 th\u00eam m\u1ed9t l\u1edbp b\u1ea3o m\u1eadt. Ch\u1eef &#8216;S&#8217; l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a &#8220;Secure&#8221;. HTTPS s\u1eed d\u1ee5ng m\u00e3 h\u00f3a SSL\/TLS \u0111\u1ec3 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u truy\u1ec1n \u0111i gi\u1eefa tr\u00ecnh duy\u1ec7t c\u1ee7a b\u1ea1n v\u00e0 m\u00e1y ch\u1ee7, ng\u0103n ch\u1eb7n k\u1ebb gian nghe l\u00e9n ho\u1eb7c thay \u0111\u1ed5i th\u00f4ng tin. Ng\u00e0y nay, HTTPS l\u00e0 ti\u00eau chu\u1ea9n b\u1eaft bu\u1ed9c.<\/p>\n\n\n\n<p>Xem th\u00eam: <a href=\"https:\/\/tino.vn\/blog\/chuyen-http-sang-https\/\" target=\"_blank\" data-type=\"post\" data-id=\"24058\" rel=\"noreferrer noopener\">C\u00e1ch chuy\u1ec3n HTTP sang HTTPS<\/a><\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"HTTP\/1.1_c\u00f3_c\u00f2n_\u0111\u01b0\u1ee3c_s\u1eed_d\u1ee5ng_kh\u00f4ng?\">HTTP\/1.1 c\u00f3 c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>C\u00f3, v\u1eabn c\u00f2n m\u1ed9t ph\u1ea7n \u0111\u00e1ng k\u1ec3 c\u1ee7a c\u00e1c trang web tr\u00ean Internet s\u1eed d\u1ee5ng HTTP\/1.1. Tuy nhi\u00ean, xu h\u01b0\u1edbng d\u1ecbch chuy\u1ec3n sang HTTP\/2 v\u00e0 HTTP\/3 \u0111ang di\u1ec5n ra r\u1ea5t nhanh ch\u00f3ng v\u00ec l\u1ee3i \u00edch hi\u1ec7u su\u1ea5t r\u00f5 r\u1ec7t.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"Li\u1ec7u_s\u1ebd_c\u00f3_HTTP\/4_trong_t\u01b0\u01a1ng_lai_kh\u00f4ng?\">Li\u1ec7u s\u1ebd c\u00f3 HTTP\/4 trong t\u01b0\u01a1ng lai kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>Hi\u1ec7n t\u1ea1i ch\u01b0a c\u00f3 k\u1ebf ho\u1ea1ch ch\u00ednh th\u1ee9c n\u00e0o cho HTTP\/4. C\u1ed9ng \u0111\u1ed3ng ph\u00e1t tri\u1ec3n \u0111ang t\u1eadp trung v\u00e0o vi\u1ec7c tri\u1ec3n khai v\u00e0 t\u1ed1i \u01b0u h\u00f3a HTTP\/3 tr\u00ean di\u1ec7n r\u1ed9ng. C\u00e1c v\u1ea5n \u0111\u1ec1 m\u00e0 HTTP\/3 gi\u1ea3i quy\u1ebft l\u00e0 nh\u1eefng th\u00e1ch th\u1ee9c l\u1edbn nh\u1ea5t c\u1ee7a web trong t\u01b0\u01a1ng lai g\u1ea7n. B\u1ea5t k\u1ef3 phi\u00ean b\u1ea3n n\u00e0o trong t\u01b0\u01a1ng lai s\u1ebd ph\u1ee5 thu\u1ed9c v\u00e0o nh\u1eefng th\u00e1ch th\u1ee9c m\u1edbi m\u00e0 Internet ph\u1ea3i \u0111\u1ed1i m\u1eb7t.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\n<script type=\"application\/ld+json\">\n\t{\n\t\t\"@context\": \"https:\/\/schema.org\",\n\t\t\"@type\": \"FAQPage\",\n\t\t\"mainEntity\": [\n\t\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"\\\"Head-of-Line Blocking\\\" (HOL Blocking) l\u00e0 g\u00ec?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>\u0110\u00e2y l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng t\u1eafc ngh\u1ebdn khi m\u1ed9t y\u00eau c\u1ea7u ch\u1eadm ch\u1ea1p \u1edf ph\u00eda tr\u01b0\u1edbc l\u00e0m t\u1ea5t c\u1ea3 c\u00e1c y\u00eau c\u1ea7u ph\u00eda sau n\u00f3 ph\u1ea3i ch\u1edd \u0111\u1ee3i, ngay c\u1ea3 khi ch\u00fang \u0111\u00e3 s\u1eb5n s\u00e0ng \u0111\u1ec3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd. H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ed9t chi\u1ebfc xe ch\u1ea1y ch\u1eadm \u1edf \u0111\u1ea7u m\u1ed9t con \u0111\u01b0\u1eddng m\u1ed9t l\u00e0n xe, bu\u1ed9c t\u1ea5t c\u1ea3 c\u00e1c xe ph\u00eda sau ph\u1ea3i \u0111i ch\u1eadm theo.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"S\u1ef1 kh\u00e1c bi\u1ec7t l\u1edbn nh\u1ea5t gi\u1eefa HTTP\/1.1 v\u00e0 HTTP\/2 l\u00e0 g\u00ec?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>S\u1ef1 kh\u00e1c bi\u1ec7t c\u1ed1t l\u00f5i l\u00e0 Multiplexing (gh\u00e9p k\u00eanh). Trong khi HTTP\/1.1 ph\u1ea3i x\u1eed l\u00fd c\u00e1c y\u00eau c\u1ea7u m\u1ed9t c\u00e1ch tu\u1ea7n t\u1ef1 tr\u00ean m\u1ed9t k\u1ebft n\u1ed1i (g\u00e2y ra t\u1eafc ngh\u1ebdn), HTTP\/2 c\u00f3 th\u1ec3 x\u1eed l\u00fd nhi\u1ec1u y\u00eau c\u1ea7u v\u00e0 ph\u1ea3n h\u1ed3i \u0111\u1ed3ng th\u1eddi tr\u00ean c\u00f9ng m\u1ed9t k\u1ebft n\u1ed1i, gi\u1ed1ng nh\u01b0 \u0111i t\u1eeb \u0111\u01b0\u1eddng m\u1ed9t l\u00e0n l\u00ean cao t\u1ed1c \u0111a l\u00e0n.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Website c\u1ee7a t\u00f4i c\u00f3 th\u1ef1c s\u1ef1 c\u1ea7n n\u00e2ng c\u1ea5p l\u00ean HTTP\/3 kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>M\u1eb7c d\u00f9 kh\u00f4ng b\u1eaft bu\u1ed9c, vi\u1ec7c n\u00e2ng c\u1ea5p \u0111\u01b0\u1ee3c \u0111\u1eb7c bi\u1ec7t khuy\u1ebfn ngh\u1ecb n\u1ebfu t\u1ed1c \u0111\u1ed9, tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng tr\u00ean di \u0111\u1ed9ng, v\u00e0 c\u00e1c ch\u1ec9 s\u1ed1 Core Web Vitals l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u c\u1ee7a b\u1ea1n. \u0110\u1ed1i v\u1edbi c\u00e1c trang th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed, tin t\u1ee9c, ho\u1eb7c c\u00e1c \u1ee9ng d\u1ee5ng web ph\u1ee9c t\u1ea1p, l\u1ee3i \u00edch l\u00e0 r\u1ea5t \u0111\u00e1ng k\u1ec3.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"HTTP v\u00e0 HTTPS kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>HTTPS ch\u00ednh l\u00e0 HTTP nh\u01b0ng c\u00f3 th\u00eam m\u1ed9t l\u1edbp b\u1ea3o m\u1eadt. Ch\u1eef 'S' l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a \\\"Secure\\\". HTTPS s\u1eed d\u1ee5ng m\u00e3 h\u00f3a SSL\/TLS \u0111\u1ec3 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u truy\u1ec1n \u0111i gi\u1eefa tr\u00ecnh duy\u1ec7t c\u1ee7a b\u1ea1n v\u00e0 m\u00e1y ch\u1ee7, ng\u0103n ch\u1eb7n k\u1ebb gian nghe l\u00e9n ho\u1eb7c thay \u0111\u1ed5i th\u00f4ng tin. Ng\u00e0y nay, HTTPS l\u00e0 ti\u00eau chu\u1ea9n b\u1eaft bu\u1ed9c.<\/p><p>Xem th\u00eam: <a>C\u00e1ch chuy\u1ec3n HTTP sang HTTPS<\/a><\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"HTTP\/1.1 c\u00f3 c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>C\u00f3, v\u1eabn c\u00f2n m\u1ed9t ph\u1ea7n \u0111\u00e1ng k\u1ec3 c\u1ee7a c\u00e1c trang web tr\u00ean Internet s\u1eed d\u1ee5ng HTTP\/1.1. Tuy nhi\u00ean, xu h\u01b0\u1edbng d\u1ecbch chuy\u1ec3n sang HTTP\/2 v\u00e0 HTTP\/3 \u0111ang di\u1ec5n ra r\u1ea5t nhanh ch\u00f3ng v\u00ec l\u1ee3i \u00edch hi\u1ec7u su\u1ea5t r\u00f5 r\u1ec7t.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Li\u1ec7u s\u1ebd c\u00f3 HTTP\/4 trong t\u01b0\u01a1ng lai kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Hi\u1ec7n t\u1ea1i ch\u01b0a c\u00f3 k\u1ebf ho\u1ea1ch ch\u00ednh th\u1ee9c n\u00e0o cho HTTP\/4. C\u1ed9ng \u0111\u1ed3ng ph\u00e1t tri\u1ec3n \u0111ang t\u1eadp trung v\u00e0o vi\u1ec7c tri\u1ec3n khai v\u00e0 t\u1ed1i \u01b0u h\u00f3a HTTP\/3 tr\u00ean di\u1ec7n r\u1ed9ng. C\u00e1c v\u1ea5n \u0111\u1ec1 m\u00e0 HTTP\/3 gi\u1ea3i quy\u1ebft l\u00e0 nh\u1eefng th\u00e1ch th\u1ee9c l\u1edbn nh\u1ea5t c\u1ee7a web trong t\u01b0\u01a1ng lai g\u1ea7n. B\u1ea5t k\u1ef3 phi\u00ean b\u1ea3n n\u00e0o trong t\u01b0\u01a1ng lai s\u1ebd ph\u1ee5 thu\u1ed9c v\u00e0o nh\u1eefng th\u00e1ch th\u1ee9c m\u1edbi m\u00e0 Internet ph\u1ea3i \u0111\u1ed1i m\u1eb7t.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t\t\t\t]\n\t}\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Khi truy c\u1eadp m\u1ed9t trang web, c\u00f3 bao gi\u1edd b\u1ea1n th\u1eafc m\u1eafc \u0111i\u1ec1u g\u00ec \u0111ang di\u1ec5n ra ph\u00eda sau m\u1ed7i c\u00fa nh\u1ea5p chu\u1ed9t? M\u1ecdi n\u1ed9i dung \u2014 t\u1eeb h\u00ecnh \u1ea3nh, video \u0111\u1ebfn v\u0103n b\u1ea3n \u2014 \u0111\u1ec1u \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i qua m\u1ed9t giao th\u1ee9c c\u00f3 t\u00ean l\u00e0 HTTP (HyperText Transfer Protocol). Tr\u1ea3i qua nhi\u1ec1u n\u0103m ph\u00e1t [&hellip;]<\/p>\n","protected":false},"author":23,"featured_media":120132,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5404],"tags":[6938],"class_list":["post-120120","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-webmasters","tag-webmasters"],"_links":{"self":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/120120","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/comments?post=120120"}],"version-history":[{"count":2,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/120120\/revisions"}],"predecessor-version":[{"id":120134,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/120120\/revisions\/120134"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media\/120132"}],"wp:attachment":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media?parent=120120"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/categories?post=120120"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/tags?post=120120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}