Marketing, demand and conversion · Performance, accessibility and experimentation

WebPageTest

Licence or access: current main Polyform Shield; older branch Apache

license status: current main Polyform Shield; older branch Apache
role: real-browser waterfall/filmstrip/video/Lighthouse
limitations: hosted free tier around 150 runs/month but no API/schedules; main is source-available, not unqualified OSS
official source: Plans · Repo

Official sources

Plans https://www.webpagetest.org/signup
Repo https://github.com/catchpoint/WebPageTest

Catalogued at the 2026-09-01 research baseline. Verify the licence, free-tier limits, API schema and source terms again before deployment, and record a version-pinned registry entry for whatever you select.

Source: file 07 · 6-performance-accessibility-and-experimentation · line 94

More from this library GET /v1/tools/webpagetest