Quick answer: Want a free website speed test? Paste your URL below. You’ll get your real Core Web Vitals score instantly. This is the same data Google uses to judge your site’s speed for search rankings.

How This Speed Test Works

This tool runs your live URL through Google’s own PageSpeed Insights API. It’s the exact engine Google uses to assess Core Web Vitals. That means it’s not a guess. It’s real data.

The test measures three things. First, Largest Contentful Paint. This shows how fast your main content becomes visible. Second, Cumulative Layout Shift. This shows whether elements jump around while loading. Third, Total Blocking Time. This shows how responsive your page feels during load.

Who Should Run This Speed Test

Have you never checked your Core Web Vitals? Start here first. You can’t fix what you haven’t measured. Most site owners are surprised by their real score. That’s because their own browser caches the site, making it feel faster than it actually is for new visitors.

Did you just redesign your site or add a new feature? Re-run this test right away. A new hero image or plugin can quietly tank your score. Often there’s no warning in your WordPress dashboard.

Are you troubleshooting a ranking drop? This is a fast first check. A performance regression often lines up closely with a ranking dip.

A Common Mistake When Reading Your Score

Don’t treat one test as the full picture. Google’s real ranking signal uses 28 days of visitor data from Search Console. A single lab snapshot during a server hiccup isn’t fully representative.

Also, don’t fixate only on the overall number. Check which specific metric is failing. A poor CLS score needs a different fix than a poor LCP score. Reserved image space fixes CLS. Image compression and server response time fix LCP.

What a Good Score Looks Like

Google’s thresholds are clear. LCP under 2.5 seconds is good. CLS under 0.1 is good. For the overall score, 90 or higher is good. 50 to 89 needs improvement. Below 50 is poor.

Want the full breakdown of every metric and how to fix each one? Read our Core Web Vitals 2026 guide.

Frequently Asked Questions

Why did my score come back low even though my site feels fast to me?
Your own browser caches your site after repeat visits. This test simulates a first-time visitor instead, which is what actually matters for rankings.

Does this test mobile or desktop?
Mobile. Google uses mobile-first indexing, so this is the stricter, more representative test.

How often should I re-check my score?
Check after any major change. Otherwise, check roughly every 1-2 months as routine maintenance.

My score varies between tests. Is that normal?
Yes. Some variance is expected due to network conditions. Look at the trend across several tests, not one single result.

Is a good score a guarantee of good rankings?
No. It’s one signal among many. Strong, relevant content still matters more. But poor performance is a real disadvantage in competitive niches.