Core Web Vitals
Check your website for core web vitals across the leading website testing tools for free, all from one simple interface. Core web vitals website tests. Enter a URL to test and hit Start.
- Enter your URL
- Pick your test below
- Test it
Instant check
Checking your URL.
A quick look from Chckr itself, covering the things that are readable straight off your page. Run the tests below for the full picture.
Filter by type of website test, then click a test.
Speed9
Page Speed InsightsCore Web VitalsRuns the test automaticallyTest it
WebPageTestCore Web VitalsOpens the tool, paste your URLTest it
Is My Page Cached?Runs the test automaticallyTest it
Yellow Lab ToolsPre-fills your URL, you press the tool's buttonTest it
KeyCDNPre-fills your URL, you press the tool's buttonTest it- DBDebugBear Free Website Speed TestPre-fills your URL, you press the tool's buttonTest it
SEO3
Social5
Accessibility1
Security7
Security HeadersRuns the test automaticallyTest it
HSTS PreloadingPre-fills your URL, you press the tool's buttonTest it
- MOMozilla/MDN HTTP ObservatoryRuns the test automaticallyTest it
- SBGoogle Safe Browsing site statusRuns the test automaticallyTest it
Other2
Launch All Tests At Once
This will open a new tab or window for each of the test sites above. If only one test opens, your browser is blocking pop-ups. Allow pop-ups for chckr.co and try again.
Your browser may ask you to allow pop-ups the first time.
Not sure what your result means? Browse all test guides.
Chckr Recommends
Perfmatters helps boost Core Web Vitals performance by eliminating unnecessary bloat from your WordPress website. This plugin is used and recommended by optimization experts since it is easy to use and cleans up a lot of issues fast.
Understand what these tests are telling you
- PageSpeed Insights TestRun Google PageSpeed Insights on your URL and understand the score, the lab numbers and the field data, plus what to change first when the result is poor.
- WebPageTestRun WebPageTest on your page for a request by request breakdown, filmstrip view and repeat view results that show what your visitors actually see while waiting.