GTmetrix Performance Blog

News, updates and guides on GTmetrix and general web performance

Whitelist or Blacklist URLs in your tests!

Blacklisting useful for excluding 3rd-party scripts such as Facebook like/share widgets, Google Analytics scripts, Youtube embeds and any other external widgets you might want to be not be part of your page load.

UI Changes

We’ve done a bit of clean up to our settings and options pages to make it easier and more logical to find the features you want.