Free Website Speed Test — Check PageSpeed & Core Web Vitals in 60 Seconds

The 30-second answer

Our free website speed test runs your site through Google PageSpeed Insights and Chrome UX Report in about 60 seconds, giving you Core Web Vitals (LCP, CLS, INP), a 0-100 performance score, and a prioritized list of fixes.

Why website speed matters in 2026

Site speed isn't a vanity metric — it's directly tied to revenue, rankings, and user trust. Here's what the data actually shows:

  • 53% of mobile visitors abandon a page that takes longer than 3 seconds to load (Google/SOASTA research). Every second of delay costs you real customers.
  • Google officially uses Core Web Vitals as a ranking factor. Slow sites get demoted in search results, no matter how good your content is.
  • A 1-second improvement in load time can boost conversion rates by up to 27% (Portent study). Speed is one of the highest-ROI optimizations available.
  • Amazon found that every 100ms of latency cost them 1% in sales. Small delays compound into massive losses at scale.
  • If you haven't run a free website speed test on your site in the last 90 days, you're almost certainly leaving money on the table.

    What our free website speed test checks

    When you paste your URL into our website analyzer, we pull data from two sources: Google PageSpeed Insights (lab data) and the Chrome UX Report (real-user field data). Here's everything you get:

    Four scores (0-100):
  • Performance — how fast your site loads and becomes interactive
  • SEOtechnical SEO basics (meta tags, crawlability, mobile-friendliness)
  • Accessibility — how usable your site is for people with disabilities
  • Best Practices — security, modern web standards, console errors
  • Five Core Web Vitals metrics:
  • LCP (Largest Contentful Paint) — how long your biggest visible element takes to render
  • CLS (Cumulative Layout Shift) — how much your page jumps around while loading
  • INP (Interaction to Next Paint) — how quickly your site responds to clicks and taps
  • FCP (First Contentful Paint) — when visitors first see anything on screen
  • TBT (Total Blocking Time) — how long your page is frozen during load
  • Real-user data from Chrome UX Report: If your site gets enough traffic, we also show you how real Chrome users actually experience it — not just what Google's synthetic lab test measures. This is the data Google actually uses to rank you.

    How to run a free website speed test

    Three steps, under 90 seconds:

  • Go to the WeLead Lab Website Analyzer. No signup, no email gate, no credit card.
  • Paste your full URL (including https://) into the input box and click Analyze.
  • Wait 30-60 seconds. We hit Google's API in real time, pull CrUX data, and assemble your report. You'll see all four scores, your Core Web Vitals, and a prioritized list of issues to fix.
  • That's it. Bookmark the page and run it weekly during any performance work.

    What the scores actually mean

    Google uses specific thresholds to grade each Core Web Vital. Here's the cheat sheet:

    MetricGoodNeeds ImprovementPoor
    LCP (Largest Contentful Paint)≤ 2.5s2.5s - 4.0s> 4.0s
    INP (Interaction to Next Paint)≤ 200ms200ms - 500ms> 500ms
    CLS (Cumulative Layout Shift)≤ 0.10.1 - 0.25> 0.25
    FCP (First Contentful Paint)≤ 1.8s1.8s - 3.0s> 3.0s
    TBT (Total Blocking Time)≤ 200ms200ms - 600ms> 600ms
    Performance Score90-10050-890-49
    To pass Google's Core Web Vitals assessment, 75% of your page visits must hit "Good" on LCP, INP, and CLS. That's the bar. Anything less and you're handing rankings to competitors.

    Common speed problems and how to fix them

    When you run a free website speed test and see a poor score, it almost always traces back to one of these six issues. Here's what to look for and how to fix each:

    1. Unoptimized images This is the #1 culprit we see on small business sites. A single 4MB hero photo can tank your LCP by 3+ seconds. Fix: Convert images to WebP or AVIF format, compress with TinyPNG, set explicit width/height attributes, and lazy-load images below the fold. 2. Render-blocking JavaScript Third-party scripts (chat widgets, analytics, marketing pixels) pause your page render until they finish loading. Fix: Add defer or async to non-critical scripts, load chat widgets after user interaction, and audit whether you really need every tracker. 3. Slow server response time (TTFB) If your server takes 1+ seconds just to send the first byte, nothing else can start loading. Cheap shared hosting is usually to blame. Fix: Upgrade to a faster host (Cloudflare Pages, Vercel, Netlify), enable server-side caching, and move databases geographically closer to your users. 4. Heavy, unused CSS WordPress sites often load megabytes of CSS from themes and plugins — 90% of which isn't used on any given page. Fix: Use tools like PurgeCSS to strip unused styles, inline critical CSS for above-the-fold content, and minify everything in production. 5. No browser caching Without cache headers, returning visitors re-download every asset on every visit. That's pure waste. Fix: Set Cache-Control headers on static assets (images, CSS, JS) to 1 year with versioned filenames. Your host or CDN can do this automatically. 6. No CDN If your server is in Virginia and a visitor is in Sydney, every byte makes a 20,000-mile round trip. That's physics, not optimization. Fix: Put Cloudflare (free tier works great) in front of your site. Your assets get cached at 300+ edge locations worldwide and load in milliseconds.

    Most sites can cut their load time in half by tackling just these six issues.

    Test your site now — it's free

    Stop guessing whether your site is fast enough. Run our free website speed test and get real numbers in under 60 seconds. You'll see exactly which metrics are failing, which images are oversized, and which scripts are blocking your page.

    No signup. No email required. No upsell. Just paste your URL and get your report.

    Test Your Website Speed Free →

    Frequently asked questions

    How accurate is a free website speed test? Our tool uses Google's official PageSpeed Insights API, which is the same engine Google uses to measure Core Web Vitals for search ranking. For sites with enough Chrome traffic, we also pull real-user field data from the Chrome UX Report. That's as accurate as it gets — anything else is just a lab simulation. Can I test any website, or only my own? Any public website with a valid URL. Competitors, inspirations, client sites — all fair game. You can't test pages behind a login wall, password-protected staging sites, or localhost URLs. Is there a limit on how many times I can test? Our website analyzer has generous rate limits for normal use. If you're running dozens of tests per hour, you might hit a pause, but individual users and small agencies rarely see limits. What's a good PageSpeed score for a small business site? Aim for 90+ on desktop and 75+ on mobile. Mobile is harder because Google simulates a slower CPU and 4G connection. If you're under 50 on mobile, treat it as urgent — that's the "Poor" zone and it's actively hurting your rankings. How often should I run a free website speed test? Monthly for maintenance, weekly during any redesign or marketing push, and immediately after installing any new plugin, script, or third-party tool. Performance regressions sneak in constantly — especially on WordPress sites where a single plugin update can tank your LCP.

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    Ready to find out how fast your site really is? Run your free website speed test now and get a full Core Web Vitals report in under a minute.

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    Vladimir Kamenev
    Founder

    25 years in industry

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