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GTmetrix

Website speed tests, performance reports and fixes.

Install You sign in on GTmetrix's own page. No key to copy.

What GBrain can do with GTmetrix

GTmetrix tests, monitors and helps optimize the speed of websites. Connected to a workspace, GBrain can answer “why did the pricing page get slower after Tuesday’s release?” by running a test, reading the report and comparing it with earlier results.

Signing in happens on GTmetrix’s own page. Running tests uses GTmetrix API credits; reading existing reports does not.

  • Run performance tests across devices and locations
  • Read performance reports and Web Vitals
  • Compare results with earlier tests
  • Suggest fixes for slow pages

From the command line

GBrain gives GTmetrix a command line too. From a terminal, a script or Claude Code, gbrainio tool help gtmetrix lists its commands once it is connected.

GTmetrix from the command line

More in Monitoring

Install GTmetrix in a workspace

You sign in on GTmetrix's own page. No key to copy. Then add it to a workspace, and anyone on the team can ask about it in plain words.

Install GTmetrix Every application