You are browsing a read-only backup copy of Wikitech. The primary site can be found at wikitech.wikimedia.org
This is the runbook for WebPageTest alerts.
Our WebPageTests tests measures the front end performance of Wikipedia, going to our Wikipedia servers If an alert fires it can be caused by:
- A performance regression of Wikipedia
- A regression in the browser that is used for the test
- Instability on the server that runs the tests