Check your website for core web vitals across the leading website testing tools for free, all from one simple interface. Enter a URL to test and hit Start.
Note: 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.
* Sites with an asterisk don't auto-populate the URL after clicking Test URL.
Chckr is a list of some of the best website testing tools available for free.
No URLs are stored. The test buttons simply link out to the testing sites with the URL you want to check.
Follow us on Twitter for optimization tweets.