{"id":13235,"date":"2026-08-19T14:49:57","date_gmt":"2026-08-19T07:49:57","guid":{"rendered":"https:\/\/webie.com.vn\/?p=13235"},"modified":"2026-10-10T02:48:26","modified_gmt":"2026-10-09T19:48:26","slug":"interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026","status":"publish","type":"post","link":"https:\/\/webie.com.vn\/vi\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\/","title":{"rendered":"Interaction to Next Paint (INP): Core Web Vital m\u00e0 \u0111a s\u1ed1 website SME v\u1eabn \"tr\u01b0\u1ee3t\" trong 2026"},"content":{"rendered":"<p class=\"wp-block-paragraph\">N\u1ebfu website c\u1ee7a b\u1ea1n tr\u00f4ng ch\u1ec9n chu nh\u01b0ng l\u1ea1i ph\u1ea3n h\u1ed3i ch\u1eadm m\u1ed7i khi kh\u00e1ch nh\u1ea5n m\u1ed9t n\u00fat, m\u1edf menu hay l\u1ecdc danh s\u00e1ch s\u1ea3n ph\u1ea9m, th\u00ec Interaction to Next Paint (INP) th\u01b0\u1eddng l\u00e0 th\u1ee7 ph\u1ea1m. INP l\u00e0 ch\u1ec9 s\u1ed1 Core Web Vital \u0111o t\u1ed1c \u0111\u1ed9 website ph\u1ea3n h\u1ed3i m\u1ecdi c\u00fa click v\u00e0 ch\u1ea1m, v\u00e0 trong n\u0103m 2026, kho\u1ea3ng 40% website tr\u00ean mobile v\u1eabn ch\u01b0a \u0111\u1ea1t ng\u01b0\u1ee1ng n\u00e0y, theo d\u1eef li\u1ec7u Chrome UX Report. B\u00e0i vi\u1ebft n\u00e0y gi\u1ea3i th\u00edch INP l\u00e0 g\u00ec, v\u00ec sao n\u00f3 \u00e2m th\u1ea7m l\u00e0m b\u1ea1n m\u1ea5t kh\u00e1ch, v\u00e0 nh\u1eefng c\u00e1ch kh\u1eafc ph\u1ee5c th\u1ef1c t\u1ebf \u0111\u1ed9i c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 b\u1eaft tay l\u00e0m ngay tu\u1ea7n n\u00e0y.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">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\"><span class=\"ez-toc-js-icon-con\"><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><\/span><\/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:\/\/webie.com.vn\/vi\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\/#What_is_INP_and_why_it_replaced_FID\" >INP l\u00e0 g\u00ec, v\u00e0 v\u00ec sao n\u00f3 thay th\u1ebf FID<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/webie.com.vn\/vi\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\/#Why_INP_matters_for_your_business_not_just_your_developer\" >V\u00ec sao INP quan tr\u1ecdng v\u1edbi vi\u1ec7c kinh doanh, kh\u00f4ng ch\u1ec9 v\u1edbi l\u1eadp tr\u00ecnh vi\u00ean<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/webie.com.vn\/vi\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\/#The_4_most_common_causes_of_poor_INP\" >4 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t khi\u1ebfn INP k\u00e9m<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/webie.com.vn\/vi\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\/#Long_JavaScript_tasks\" >T\u00e1c v\u1ee5 JavaScript qu\u00e1 d\u00e0i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/webie.com.vn\/vi\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\/#Too_many_third-party_scripts\" >Qu\u00e1 nhi\u1ec1u script b\u00ean th\u1ee9 ba<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/webie.com.vn\/vi\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\/#A_bloated_DOM_and_complex_layouts\" >DOM ph\u00ecnh to v\u00e0 b\u1ed1 c\u1ee5c ph\u1ee9c t\u1ea1p<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/webie.com.vn\/vi\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\/#Event_handlers_that_do_too_much\" >Event handler \u00f4m \u0111\u1ed3m qu\u00e1 nhi\u1ec1u vi\u1ec7c<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/webie.com.vn\/vi\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\/#How_to_fix_INP_a_practical_checklist\" >C\u00e1ch kh\u1eafc ph\u1ee5c INP: checklist th\u1ef1c t\u1ebf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/webie.com.vn\/vi\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\/#FAQ\" >FAQ<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/webie.com.vn\/vi\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\/#Make_site_speed_your_competitive_advantage\" >Bi\u1ebfn t\u1ed1c \u0111\u1ed9 website th\u00e0nh l\u1ee3i th\u1ebf c\u1ea1nh tranh<\/a><\/li><\/ul><\/nav><\/div>\n<h2 id=\"h-what-is-inp-and-why-it-replaced-fid\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_INP_and_why_it_replaced_FID\"><\/span><strong>INP l\u00e0 g\u00ec, v\u00e0 v\u00ec sao n\u00f3 thay th\u1ebf FID<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">INP \u0111o kh\u1ea3 n\u0103ng ph\u1ea3n h\u1ed3i trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u1ee7a trang. N\u00f3 ghi l\u1ea1i kho\u1ea3ng th\u1eddi gian t\u1eeb l\u00fac ng\u01b0\u1eddi d\u00f9ng b\u1eaft \u0111\u1ea7u m\u1ed9t t\u01b0\u01a1ng t\u00e1c, m\u1ed9t c\u00fa click, ch\u1ea1m ho\u1eb7c nh\u1ea5n ph\u00edm, \u0111\u1ebfn khi khung h\u00ecnh k\u1ebf ti\u1ebfp \u0111\u01b0\u1ee3c v\u1ebd \u0111\u1ea7y \u0111\u1ee7 l\u00ean m\u00e0n h\u00ecnh. Con s\u1ed1 c\u00e0ng th\u1ea5p th\u00ec giao di\u1ec7n c\u00e0ng cho c\u1ea3m gi\u00e1c t\u1ee9c th\u00ec; con s\u1ed1 c\u00e0ng cao ngh\u0129a l\u00e0 ng\u01b0\u1eddi d\u00f9ng th\u1ea5y r\u00f5 \u0111\u1ed9 tr\u1ec5 gi\u1eefa thao t\u00e1c v\u00e0 ph\u1ea3n h\u1ed3i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Google ch\u1ea5m INP \u1edf ph\u00e2n v\u1ecb th\u1ee9 75 c\u1ee7a l\u01b0\u1ee3t truy c\u1eadp th\u1ef1c t\u1ebf: t\u1eeb 200 mili-gi\u00e2y tr\u1edf xu\u1ed1ng l\u00e0 \"t\u1ed1t,\" 200\u2013500ms l\u00e0 \"c\u1ea7n c\u1ea3i thi\u1ec7n,\" v\u00e0 tr\u00ean 500ms l\u00e0 \"k\u00e9m.\" N\u00f3 thay th\u1ebf First Input Delay v\u00ec FID ch\u1ec9 \u0111o \u0111\u1ed9 tr\u1ec5 tr\u01b0\u1edbc t\u01b0\u01a1ng t\u00e1c \u0111\u1ea7u ti\u00ean, trong khi INP t\u00ednh to\u00e0n b\u1ed9 chi ph\u00ed c\u1ee7a m\u1ecdi t\u01b0\u01a1ng t\u00e1c tr\u00ean trang, n\u00ean kh\u00f3 \u0111\u1ea1t h\u01a1n h\u1eb3n.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/webie.com.vn\/wp-content\/uploads\/2026\/08\/Image-design-2-1024x576.jpg\" alt=\"\" class=\"wp-image-13236\" srcset=\"https:\/\/webie.com.vn\/wp-content\/uploads\/2026\/08\/Image-design-2-1024x576.jpg 1024w, https:\/\/webie.com.vn\/wp-content\/uploads\/2026\/08\/Image-design-2-300x169.jpg 300w, https:\/\/webie.com.vn\/wp-content\/uploads\/2026\/08\/Image-design-2-18x10.jpg 18w, https:\/\/webie.com.vn\/wp-content\/uploads\/2026\/08\/Image-design-2.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h2 id=\"h-why-inp-matters-for-your-business-not-just-your-developer\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_INP_matters_for_your_business_not_just_your_developer\"><\/span><strong>V\u00ec sao INP quan tr\u1ecdng v\u1edbi vi\u1ec7c kinh doanh, kh\u00f4ng ch\u1ec9 v\u1edbi l\u1eadp tr\u00ecnh vi\u00ean<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">INP kh\u00f4ng ph\u1ea3i ch\u1ec9 s\u1ed1 l\u00e0m m\u00e0u cho d\u00e2n k\u1ef9 thu\u1eadt; n\u00f3 li\u00ean quan tr\u1ef1c ti\u1ebfp \u0111\u1ebfn doanh thu v\u00e0 \u0111\u1ed9 hi\u1ec3n th\u1ecb. \u0110\u00e2y l\u00e0 nh\u1eefng ch\u1ed7 \u0111i\u1ec3m s\u1ed1 k\u00e9m g\u00e2y thi\u1ec7t h\u1ea1i n\u1eb7ng nh\u1ea5t cho m\u1ed9t SME:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"translation-block\"><b>Th\u1ee9 h\u1ea1ng t\u00ecm ki\u1ebfm:<\/b> Core Web Vitals l\u00e0 t\u00edn hi\u1ec7u x\u1ebfp h\u1ea1ng \u0111\u00e3 \u0111\u01b0\u1ee3c Google x\u00e1c nh\u1eadn, n\u00ean INP k\u00e9m c\u00f3 th\u1ec3 \u00e2m th\u1ea7m k\u00ecm h\u00e3m ch\u00ednh k\u1ebft qu\u1ea3 SEO m\u00e0 b\u1ea1n \u0111ang b\u1ecf ti\u1ec1n ra l\u00e0m.<\/li>\n\n\n\n<li class=\"translation-block\"><b>T\u01b0\u01a1ng t\u00e1c v\u00e0 chuy\u1ec3n \u0111\u1ed5i:<\/b> nh\u1eefng website c\u00f3 INP k\u00e9m th\u01b0\u1eddng c\u00f3 t\u1ef7 l\u1ec7 tho\u00e1t cao h\u01a1n, phi\u00ean ng\u1eafn h\u01a1n v\u00e0 \u00edt l\u01b0\u1ee3t click h\u01a1n m\u1ed7i phi\u00ean, m\u1ed7i c\u00fa ch\u1ea1m gi\u1eadt lag l\u00e0 m\u1ed9t c\u01a1 h\u1ed9i \u0111\u1ec3 kh\u00e1ch r\u1eddi \u0111i.<\/li>\n\n\n\n<li class=\"translation-block\"><b>Nh\u1eefng kho\u1ea3nh kh\u1eafc kinh doanh th\u1eadt:<\/b> m\u1ed9t website b\u1ea5t \u0111\u1ed9ng s\u1ea3n c\u00f3 b\u1ed9 l\u1ecdc b\u1ea3n \u0111\u1ed3 b\u1ecb \u0111\u01a1, m\u1ed9t c\u1eeda h\u00e0ng b\u00e1n l\u1ebb c\u00f3 n\u00fat \"th\u00eam v\u00e0o gi\u1ecf\" b\u1ecb kh\u1ef1ng, hay m\u1ed9t trang F&amp;B c\u00f3 form \u0111\u1eb7t b\u00e0n ph\u1ea3n h\u1ed3i ch\u1eadm \u0111\u1ec1u \u0111ang \u0111\u00e1nh m\u1ea5t \u0111\u00fang nh\u1eefng t\u01b0\u01a1ng t\u00e1c bi\u1ebfn kh\u00e1ch th\u00e0nh lead.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-the-4-most-common-causes-of-poor-inp\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_4_most_common_causes_of_poor_INP\"><\/span><strong>4 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t khi\u1ebfn INP k\u00e9m<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong h\u1ea7u h\u1ebft c\u00e1c l\u1ea7n audit ch\u00fang t\u00f4i th\u1ef1c hi\u1ec7n, INP k\u00e9m \u0111\u1ec1u quay v\u1ec1 c\u00f9ng m\u1ed9t nh\u00f3m th\u1ee7 ph\u1ea1m quen thu\u1ed9c. Nh\u1eadn ra ch\u00fang s\u1edbm gi\u00fap vi\u1ec7c kh\u1eafc ph\u1ee5c r\u1ebb h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n<h3 id=\"h-long-javascript-tasks\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Long_JavaScript_tasks\"><\/span><strong>T\u00e1c v\u1ee5 JavaScript qu\u00e1 d\u00e0i<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi m\u1ed9t \u0111o\u1ea1n script ch\u1ea1y qu\u00e1 50 mili-gi\u00e2y, n\u00f3 ch\u1eb7n main thread, ch\u00ednh lu\u1ed3ng m\u00e0 tr\u00ecnh duy\u1ec7t c\u1ea7n \u0111\u1ec3 ph\u1ea3n h\u1ed3i ng\u01b0\u1eddi d\u00f9ng. C\u00e1c page builder n\u1eb7ng, plugin kh\u00f4ng d\u00f9ng \u0111\u1ebfn v\u00e0 script theme c\u1ed3ng k\u1ec1nh l\u00e0 nh\u1eefng th\u1ee7 ph\u1ea1m th\u01b0\u1eddng g\u1eb7p tr\u00ean website SME.<\/p>\n\n\n\n<h3 id=\"h-too-many-third-party-scripts\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Too_many_third-party_scripts\"><\/span><strong>Qu\u00e1 nhi\u1ec1u script b\u00ean th\u1ee9 ba<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Widget chat, pixel qu\u1ea3ng c\u00e1o, heatmap v\u00e0 th\u1ebb analytics \u0111\u1ec1u tranh nhau main thread. M\u1ed7i c\u00e1i nghe c\u00f3 v\u1ebb nh\u1ecf, nh\u01b0ng g\u1ed9p l\u1ea1i ch\u00fang c\u00f3 th\u1ec3 \u0111\u1ea9y m\u1ed9t website v\u1ed1n nhanh v\u01b0\u1ee3t xa ng\u01b0\u1ee1ng 200ms, nh\u1ea5t l\u00e0 tr\u00ean \u0111i\u1ec7n tho\u1ea1i t\u1ea7m trung.<\/p>\n\n\n\n<h3 id=\"h-a-bloated-dom-and-complex-layouts\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"A_bloated_DOM_and_complex_layouts\"><\/span><strong>DOM ph\u00ecnh to v\u00e0 b\u1ed1 c\u1ee5c ph\u1ee9c t\u1ea1p<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng trang \u0111\u01b0\u1ee3c d\u1ef1ng t\u1eeb h\u00e0ng ngh\u00ecn ph\u1ea7n t\u1eed l\u1ed3ng nhau bu\u1ed9c tr\u00ecnh duy\u1ec7t ph\u1ea3i t\u00ednh l\u1ea1i style v\u00e0 layout \u1edf m\u1ed7i l\u1ea7n t\u01b0\u01a1ng t\u00e1c. Template c\u1ed3ng k\u1ec1nh v\u00e0 c\u00e1c section page-builder d\u00e0i v\u00f4 t\u1eadn l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn c\u1ee7a s\u1ee9c n\u1eb7ng \u1ea9n n\u00e0y.<\/p>\n\n\n\n<h3 id=\"h-event-handlers-that-do-too-much\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Event_handlers_that_do_too_much\"><\/span><strong>Event handler \u00f4m \u0111\u1ed3m qu\u00e1 nhi\u1ec1u vi\u1ec7c<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi m\u1ed9t c\u00fa click k\u00edch ho\u1ea1t c\u1ea3 m\u1ed9t chu\u1ed7i t\u00ednh to\u00e1n, g\u1ecdi m\u1ea1ng hay c\u1eadp nh\u1eadt DOM c\u00f9ng l\u00fac, khung h\u00ecnh k\u1ebf ti\u1ebfp s\u1ebd b\u1ecb tr\u1ec5. Ho\u00e3n nh\u1eefng vi\u1ec7c kh\u00f4ng li\u00ean quan \u0111\u1ebfn hi\u1ec3n th\u1ecb l\u1ea1i cho \u0111\u1ebfn sau khi m\u00e0n h\u00ecnh c\u1eadp nh\u1eadt s\u1ebd gi\u1eef cho giao di\u1ec7n lu\u00f4n m\u01b0\u1ee3t.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"681\" src=\"https:\/\/webie.com.vn\/wp-content\/uploads\/2026\/08\/pexels-pixabay-256502-1024x681.jpg\" alt=\"\" class=\"wp-image-13237\" srcset=\"https:\/\/webie.com.vn\/wp-content\/uploads\/2026\/08\/pexels-pixabay-256502-1024x681.jpg 1024w, https:\/\/webie.com.vn\/wp-content\/uploads\/2026\/08\/pexels-pixabay-256502-300x199.jpg 300w, https:\/\/webie.com.vn\/wp-content\/uploads\/2026\/08\/pexels-pixabay-256502-scaled-18x12.jpg 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h2 id=\"h-how-to-fix-inp-a-practical-checklist\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_fix_INP_a_practical_checklist\"><\/span><strong>C\u00e1ch kh\u1eafc ph\u1ee5c INP: checklist th\u1ef1c t\u1ebf<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n hi\u1ebfm khi c\u1ea7n \u0111\u1eadp \u0111i x\u00e2y l\u1ea1i to\u00e0n b\u1ed9 \u0111\u1ec3 \u0111\u1ea1t INP. H\u00e3y l\u00e0m theo checklist n\u00e0y, b\u1eaft \u0111\u1ea7u t\u1eeb d\u1eef li\u1ec7u th\u1ef1c t\u1ebf (field data) thay v\u00ec \u0111o\u00e1n m\u00f2:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"translation-block\"><b>\u0110o l\u01b0\u1eddng tr\u01b0\u1edbc:<\/b> m\u1edf PageSpeed Insights ho\u1eb7c Chrome UX Report v\u00e0 \u0111\u1ecdc ch\u1ec9 s\u1ed1 INP \u1edf ph\u00e2n v\u1ecb th\u1ee9 75 \u0111\u1ec3 t\u00ecm ra nh\u1eefng t\u01b0\u01a1ng t\u00e1c ch\u1eadm nh\u1ea5t tr\u01b0\u1edbc khi s\u1eeda b\u1ea5t c\u1ee9 th\u1ee9 g\u00ec.<\/li>\n\n\n\n<li class=\"translation-block\"><b>Chia nh\u1ecf t\u00e1c v\u1ee5 d\u00e0i:<\/b> t\u00e1ch nh\u1eefng ph\u1ea7n vi\u1ec7c d\u00e0i h\u01a1n 50ms v\u00e0 d\u00f9ng scheduler.yield() \u0111\u1ec3 tr\u00ecnh duy\u1ec7t k\u1ecbp ph\u1ea3n h\u1ed3i ng\u01b0\u1eddi d\u00f9ng gi\u1eefa c\u00e1c \u0111o\u1ea1n.<\/li>\n\n\n\n<li class=\"translation-block\"><b>Ho\u00e3n vi\u1ec7c kh\u00f4ng hi\u1ec3n th\u1ecb:<\/b> c\u1eadp nh\u1eadt m\u00e0n h\u00ecnh tr\u01b0\u1edbc, r\u1ed3i m\u1edbi ch\u1ea1y analytics, ghi log v\u00e0 c\u00e1c l\u1ec7nh g\u1ecdi n\u1ec1n sau khung h\u00ecnh k\u1ebf ti\u1ebfp.<\/li>\n\n\n\n<li class=\"translation-block\"><b>R\u00e0 so\u00e1t script b\u00ean th\u1ee9 ba:<\/b> g\u1ee1 nh\u1eefng g\u00ec kh\u00f4ng c\u00f2n d\u00f9ng v\u00e0 lazy-load chat, b\u1ea3n \u0111\u1ed3, pixel \u0111\u1ec3 ch\u00fang ch\u1ec9 t\u1ea3i khi c\u1ea7n.<\/li>\n\n\n\n<li class=\"translation-block\"><b>Tinh g\u1ecdn DOM:<\/b> gi\u1ea3m ph\u1ea7n t\u1eed l\u1ed3ng nhau, \u0111\u01a1n gi\u1ea3n h\u00f3a c\u00e1c layout n\u1eb7ng v\u00e0 c\u1eaft b\u1edbt section page-builder kh\u00f4ng d\u00f9ng \u0111\u1ec3 nh\u1eb9 h\u00f3a m\u1ecdi t\u01b0\u01a1ng t\u00e1c.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-faq\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQ\"><\/span><strong>FAQ<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1787125477029\"><strong class=\"schema-faq-question\"><strong>L\u00e0m sao \u0111\u1ec3 ki\u1ec3m tra INP c\u1ee7a website?<\/strong><\/strong> <p class=\"schema-faq-answer\">D\u00f9ng Google PageSpeed Insights ho\u1eb7c Chrome UX Report v\u00e0 nh\u00ecn k\u1ef9 v\u00e0o ph\u1ea7n d\u1eef li\u1ec7u th\u1ef1c t\u1ebf (field data), ph\u1ea7n n\u00e0y ph\u1ea3n \u00e1nh kh\u00e1ch truy c\u1eadp th\u1eadt \u1edf ph\u00e2n v\u1ecb th\u1ee9 75, ch\u1ec9 nh\u00ecn \u0111i\u1ec3m trong ph\u00f2ng lab s\u1ebd kh\u00f4ng cho b\u1ea1n b\u1ee9c tranh \u0111\u1ea7y \u0111\u1ee7.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1787125478895\"><strong class=\"schema-faq-question\"><strong>INP c\u00f3 ph\u1ea3i ch\u1ec9 l\u00e0 v\u1ea5n \u0111\u1ec1 c\u1ee7a mobile? <\/strong><\/strong> <p class=\"schema-faq-answer\">Thi\u1ebft b\u1ecb di \u0111\u1ed9ng tr\u01b0\u1ee3t nhi\u1ec1u nh\u1ea5t v\u00ec n\u0103ng l\u1ef1c x\u1eed l\u00fd y\u1ebfu h\u01a1n, nh\u01b0ng b\u1ea1n n\u00ean \u0111o c\u1ea3 mobile l\u1eabn desktop, v\u00ec ch\u1ec9 m\u1ed9t script n\u1eb7ng c\u0169ng \u0111\u1ee7 l\u00e0m ch\u1eadm c\u1ea3 hai.<\/p> <\/div> <\/div>\n\n\n\n<h2 id=\"h-make-site-speed-your-competitive-advantage\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Make_site_speed_your_competitive_advantage\"><\/span><strong>Bi\u1ebfn t\u1ed1c \u0111\u1ed9 website th\u00e0nh l\u1ee3i th\u1ebf c\u1ea1nh tranh<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Trong m\u1ed9t th\u1ecb tr\u01b0\u1eddng m\u00e0 \u0111a s\u1ed1 website SME v\u1eabn tr\u01b0\u1ee3t INP, m\u1ed9t website ph\u1ea3n h\u1ed3i t\u1ee9c th\u00ec l\u00e0 l\u1ee3i th\u1ebf th\u1ef1c s\u1ef1, kh\u00e1ch \u1edf l\u1ea1i l\u00e2u h\u01a1n, tin b\u1ea1n s\u1edbm h\u01a1n v\u00e0 chuy\u1ec3n \u0111\u1ed5i nhi\u1ec1u h\u01a1n. N\u1ebfu website c\u1ee7a b\u1ea1n ph\u1ea3n h\u1ed3i ch\u1eadm v\u00e0 b\u1ea1n nghi ng\u1edd \u0111i\u1ec1u \u0111\u00f3 \u0111ang l\u00e0m m\u1ea5t kh\u00e1ch, \u0111\u1ed9i ng\u0169 c\u1ee7a ch\u00fang t\u00f4i c\u00f3 th\u1ec3 audit Core Web Vitals v\u00e0 t\u1ed1i \u01b0u nh\u1eefng t\u01b0\u01a1ng t\u00e1c quan tr\u1ecdng nh\u1ea5t. T\u00ecm hi\u1ec3u <a href=\"https:\/\/webie.com.vn\/vi\/services\/\" target=\"_self\"><u>d\u1ecbch v\u1ee5 thi\u1ebft k\u1ebf website v\u00e0 t\u1ed1i \u01b0u hi\u1ec7u n\u0103ng c\u1ee7a ch\u00fang t\u00f4i<\/u><\/a>,, ho\u1eb7c li\u00ean h\u1ec7 tr\u1ef1c ti\u1ebfp qua hotline +84 969 838 467 hay email huyen.dang@webie.com.vn. Ngu\u1ed3n: web.dev (Interaction to Next Paint) v\u00e0 SitePoint, \"Core Web Vitals 2026: Fix Interaction to Next Paint.\"<\/p>","protected":false},"excerpt":{"rendered":"<p>If your website looks polished but feels sluggish the moment a visitor taps a button, opens a menu, or filters a product list, Interaction to Next Paint (INP) is usually the reason. INP is the Core Web Vital that measures how quickly your site responds to every click and tap, and in 2026, roughly 40% [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":13238,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[268,304,311],"class_list":["post-13235","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-website","tag-websitedesign","tag-website-speed","tag-website-optimization"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.6 (Yoast SEO v28.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>INP in 2026: Fix the Core Web Vital SME Sites Fail<\/title>\n<meta name=\"description\" content=\"INP measures how fast your site responds to every tap. ~40% of mobile sites still fail it in 2026. Learn what INP is and how to fix it fast.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/webie.com.vn\/vi\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Interaction to Next Paint (INP): The Core Web Vital Most SME Websites Still Fail in 2026\" \/>\n<meta property=\"og:description\" content=\"INP measures how fast your site responds to every tap. ~40% of mobile sites still fail it in 2026. Learn what INP is and how to fix it fast.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/webie.com.vn\/vi\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\/\" \/>\n<meta property=\"og:site_name\" content=\"Webie Vietnam\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Webie.Vietnam\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-19T07:49:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-09T19:48:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/webie.com.vn\/wp-content\/uploads\/2026\/08\/Bi\u0300a-web-284-19.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Duy Tran\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Duy Tran\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/webie.com.vn\\\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/webie.com.vn\\\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\\\/\"},\"author\":{\"name\":\"Duy Tran\",\"@id\":\"https:\\\/\\\/webie.com.vn\\\/#\\\/schema\\\/person\\\/5c5f7f05b130b7f8e2c1270ba80f56af\"},\"headline\":\"Interaction to Next Paint (INP): The Core Web Vital Most SME Websites Still Fail in 2026\",\"datePublished\":\"2026-08-19T07:49:57+00:00\",\"dateModified\":\"2026-10-09T19:48:26+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/webie.com.vn\\\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\\\/\"},\"wordCount\":861,\"publisher\":{\"@id\":\"https:\\\/\\\/webie.com.vn\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/webie.com.vn\\\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/webie.com.vn\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/Bi\u0300a-web-284-19.jpg\",\"keywords\":[\"websitedesign\",\"website speed\",\"website optimization\"],\"articleSection\":[\"Website\"],\"inLanguage\":\"vi\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/webie.com.vn\\\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\\\/\",\"url\":\"https:\\\/\\\/webie.com.vn\\\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\\\/\",\"name\":\"INP in 2026: Fix the Core Web Vital SME Sites Fail\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/webie.com.vn\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/webie.com.vn\\\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/webie.com.vn\\\/interaction-to-next-paint-inp-the-core-web-vital-most-sme-websites-still-fail-in-2026\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/webie.com.vn\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/Bi\u0300a-web-284-19.jpg\",\"datePublished\":\"2026-08-19T07:49:57+00:00\",\"dateModified\":\"2026-10-09T19:48:26+00:00\",\"description\":\"INP measures how fast your site responds to every tap. ~40% of mobile sites still fail it in 2026. 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