GTmetrix is a website performance analysis bot that crawls and analyzes web pages to measure speed performance. Using PageSpeed and Lighthouse, GTmetrix generates performance scores and provides actionable recommendations to optimize website loading times.

At a glance

Operator: GTmetrix
Type: Monitoring

How Centinel checks it

User agent: The request calls itself this crawler. Anyone can send the same string.

GTmetrix publishes nothing Centinel can check a source against, so a match reports the name and leaves the source unconfirmed. The match tokens, verification domains, and address feeds are not published here.

Allowing or blocking it

The crawler object in the /validate response sets access_allowed to true only for a verified source that your tenant allowlists. A policy rule can allow or block this crawler by its category, Monitoring.

Back to the crawler catalog