{"id":1805,"date":"2024-11-18T13:25:34","date_gmt":"2024-11-18T13:25:34","guid":{"rendered":"https:\/\/dygistic.com\/?page_id=1805"},"modified":"2026-09-25T08:32:05","modified_gmt":"2026-09-25T08:32:05","slug":"core-web-vitals-checker","status":"publish","type":"page","link":"https:\/\/dygistic.com\/nl\/tools\/core-web-vitals-checker\/","title":{"rendered":"Core Web Vitals Checker"},"content":{"rendered":"<style data-wp-block-html=\"css\">.dy-seo-page{--slate:#1C2333;--slate-mid:#2E3F5C;--slate-ink:#0F1420;--sky:#4A90B8;--sky-deep:#3B7A9E;--sky-soft:#7AB4D6;--sky-light:#EEF3F8;--off-white:#F5F7FA;--white:#FFFFFF;--rule:rgba(28,35,51,0.08);--rule-strong:rgba(28,35,51,0.14);--ink:#1C2333;--ink-70:rgba(28,35,51,0.72);--ink-55:rgba(28,35,51,0.55);--ink-40:rgba(28,35,51,0.4);font-family:\"Plus Jakarta Sans\",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);line-height:1.6;margin-left:calc(50% - 50vw);margin-right:calc(50% - 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0;max-width:58ch;font-size:17px;font-weight:300;line-height:1.65;color:rgba(255,255,255,.72)}.dy-seo-page .tool-section{margin-top:clamp(-90px,-10vw,-120px);position:relative;z-index:2;padding-bottom:clamp(40px,6vw,64px)}.dy-seo-page .tool-panel{background:var(--white);border:1px solid var(--rule-strong);border-radius:20px;padding:clamp(18px,3vw,28px);box-shadow:0 30px 80px rgba(15,20,32,.14)}.dy-seo-page .tool-panel .dyt-form{border:0;box-shadow:none;padding:0;background:transparent}.dy-seo-page .tool-panel .dyt-url{background:var(--off-white)}.dy-seo-page .metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:32px}@media (max-width:860px){.dy-seo-page .metric-grid{grid-template-columns:1fr}}.dy-seo-page .metric-card{padding:26px 24px;background:var(--white);border:1px solid var(--rule);border-radius:14px}.dy-seo-page .mc-abbr{font-size:11px;font-weight:700;letter-spacing:.22em;color:var(--sky);margin-bottom:10px}.dy-seo-page 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.other-tools{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.dy-seo-page .other-tools a{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border:1px solid var(--rule-strong);border-radius:999px;font-size:13.5px;font-weight:600;color:var(--slate);background:var(--white);transition:border-color .2s,background .2s}.dy-seo-page .other-tools a:hover{border-color:var(--sky);background:var(--sky-light);color:var(--sky-deep)}.dy-seo-page .cta-block{padding:clamp(40px,6vw,64px);border-radius:24px;background:radial-gradient(800px 300px at 90% -20%,rgba(74,144,184,.22),transparent 60%),linear-gradient(135deg,var(--slate-ink),var(--slate));color:var(--white);position:relative;overflow:hidden;display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center}@media (max-width:820px){.dy-seo-page .cta-block{grid-template-columns:1fr;gap:28px}}.dy-seo-page .cta-h{font-size:clamp(26px,3.4vw,38px);font-weight:700;letter-spacing:-0.025em;line-height:1.12;color:var(--white);margin:0 0 14px}.dy-seo-page .cta-p{font-size:16px;color:rgba(255,255,255,.7);line-height:1.65;max-width:44ch;margin:0}.dy-seo-page .cta-right{display:flex;flex-direction:column;align-items:flex-start;gap:20px}.dy-seo-page .cta-detail{font-size:13.5px;color:rgba(255,255,255,.65);line-height:1.85;border-left:2px solid var(--sky);padding-left:14px}<\/style>\n<div class=\"dy-seo-page\">\n<section class=\"seo-hero\">\n<div class=\"wrap hero-inner\">\n<div class=\"hero-eyebrow\">Free tool &middot; No account &middot; Live check<\/div>\n<h1 class=\"hero-h1\">Core Web Vitals <em>Checker<\/em><\/h1>\n<p class=\"hero-sub\">Paste a URL and get the real-user Core Web Vitals Google uses (LCP, INP, CLS), a lab test with a performance score, and the biggest opportunities to fix, for mobile or desktop.<\/p>\n<\/div>\n<\/section>\n<section class=\"tool-section\">\n<div class=\"wrap wrap-narrow\">\n<div class=\"tool-panel\"><div class=\"dyt-tool no-glossary\" data-tool=\"pagespeed\" id=\"dyt-pagespeed-1162\"><form class=\"dyt-form\" novalidate action=\"\"><div class=\"dyt-row\"><input type=\"url\" name=\"url\" class=\"dyt-url\" inputmode=\"url\" autocomplete=\"url\" spellcheck=\"false\" placeholder=\"https:\/\/example.com\/\" required aria-label=\"URL to check\"><button type=\"submit\" class=\"dyt-btn\">Check Core Web Vitals<svg width=\"14\" height=\"14\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.4\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M5 12h14\"\/><path d=\"m13 5 7 7-7 7\"\/><\/svg><\/button><\/div><div class=\"dyt-opts\"><label class=\"dyt-opt\"><span>Device<\/span><select name=\"strategy\"><option value=\"mobile\">Mobile<\/option><option value=\"desktop\">Desktop<\/option><\/select><\/label><\/div><p class=\"dyt-hint\">Gratis, geen account, niets wordt opgeslagen. De checks draaien live vanaf de Dygistic-server.<\/p><input type=\"hidden\" name=\"trp-form-language\" value=\"nl\"\/><\/form><div class=\"dyt-status\" hidden><\/div><div class=\"dyt-results\" aria-live=\"polite\"><\/div><\/div><\/div>\n<\/div>\n<\/section>\n<section class=\"section bg-off\">\n<div class=\"wrap\">\n<div class=\"eyebrow\">What the numbers mean<\/div>\n<h2 class=\"title\" style=\"max-width:26ch\">Three metrics decide whether a page passes.<\/h2>\n<p class=\"lead\">Google evaluates Core Web Vitals on real Chrome visits (the 75th percentile over 28 days). Lab tests help you diagnose, but the field data is what counts for rankings.<\/p>\n<div class=\"metric-grid\"><div class=\"metric-card\"><div class=\"mc-abbr\">LCP<\/div><div class=\"mc-title\">Largest Contentful Paint<\/div><p class=\"mc-text\">How long it takes for the largest visible element (usually a hero image or heading) to render. It is the loading metric visitors feel most.<\/p><span class=\"mc-good\">Good: 2.5 s or less<\/span><\/div><div class=\"metric-card\"><div class=\"mc-abbr\">INP<\/div><div class=\"mc-title\">Interaction to Next Paint<\/div><p class=\"mc-text\">How quickly the page responds to taps and clicks across the whole visit. Replaced First Input Delay in 2024. The lab test approximates it with Total Blocking Time.<\/p><span class=\"mc-good\">Good: 200 ms or less<\/span><\/div><div class=\"metric-card\"><div class=\"mc-abbr\">CLS<\/div><div class=\"mc-title\">Cumulative Layout Shift<\/div><p class=\"mc-text\">How much the layout jumps while loading, for example when an image or ad pops in and pushes text down. Measures visual stability.<\/p><span class=\"mc-good\">Good: 0.1 or less<\/span><\/div><\/div>\n<\/div>\n<\/section>\n<section class=\"section\">\n<div class=\"wrap\">\n<div class=\"eyebrow\">How to fix it<\/div>\n<h2 class=\"title\" style=\"max-width:26ch\">The fixes that move the needle most often.<\/h2>\n<div class=\"tips\"><div class=\"tip\"><div class=\"tip-title\">Improve LCP<\/div><p>The LCP element is almost always an image or a font-dependent heading.<\/p><ul><li>Serve the hero image in WebP or AVIF, sized for the viewport, with fetchpriority=&#8221;high&#8221; and never lazy-loaded.<\/li><li>Cut server response time: page caching, a CDN and a decent host. TTFB above 800 ms drags everything.<\/li><li>Remove render-blocking CSS and JavaScript from the head; inline the critical CSS.<\/li><\/ul><\/div><div class=\"tip\"><div class=\"tip-title\">Improve INP<\/div><p>Slow interactions come from too much JavaScript on the main thread.<\/p><ul><li>Defer or remove third-party scripts (chat widgets, trackers, A\/B tools) that are not needed on first load.<\/li><li>Break up long tasks and avoid heavy work inside click handlers.<\/li><li>Check the tag manager: a bloated container is a common INP culprit on WordPress and Shopify sites.<\/li><\/ul><\/div><div class=\"tip\"><div class=\"tip-title\">Improve CLS<\/div><p>Layout shift is a reservation problem: the browser did not know how much space something needed.<\/p><ul><li>Set width and height attributes on every image and video.<\/li><li>Reserve space for ads, embeds and cookie banners.<\/li><li>Use font-display: swap with size-adjusted fallbacks, or preload the main web font.<\/li><\/ul><\/div><div class=\"tip\"><div class=\"tip-title\">Do not chase the lab score<\/div><p>A Lighthouse score of 100 is not the goal. Passing all three field metrics on mobile is. Fix the poor metric first, re-measure after 28 days of real traffic, then move on.<\/p><ul><li>Test the templates that get traffic: home, category, product and article.<\/li><li>Compare mobile and desktop; mobile is usually the problem.<\/li><li>Use Search Console&#8217;s Core Web Vitals report to see which URL groups fail.<\/li><\/ul><\/div><\/div>\n<div class=\"other-tools\"><a href=\"\/nl\/gereedschap\/meta-data-checker\/\">Meta Data Checker<\/a><a href=\"\/nl\/gereedschap\/broken-link-checker\/\">Broken Link Checker<\/a><a href=\"\/nl\/gereedschap\/image-optimization-checker\/\">Image Optimisation Checker<\/a><a href=\"\/nl\/gereedschap\/\">All tools<\/a><\/div>\n<\/div>\n<\/section>\n<section class=\"section\" style=\"padding-top:0\">\n<div class=\"wrap\">\n<div class=\"cta-block\">\n<div>\n<h2 class=\"cta-h\">Failing Core Web Vitals on more than one template?<\/h2>\n<p class=\"cta-p\">A one-page test tells you where it hurts. A Core Web Vitals audit tells you why, across every template, with the exact fixes your developer needs.<\/p>\n<\/div>\n<div class=\"cta-right\">\n<a href=\"\/nl\/contact\/\" class=\"btn btn-primary\">Request a full audit<\/a>\n<div class=\"cta-detail\">Complete crawl of your site.<br>Prioritised, developer-ready findings.<br>One consultant, start to finish.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Meet en verbeter de belangrijkste prestatiecijfers van uw website, zoals LCP, CLS en INP. 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