Marketing, demand and conversion · Performance, accessibility and experimentation
PageSpeed Insights API
Licence or access: free official API
- license status
- free official API
- role
- URL/device/categories → Lighthouse JSON
- limitations
- one URL/request, less control; use CrUX directly for field data
- official source
- Docs
Official sources
- Docs https://developers.google.com/speed/docs/insights/v5/get-started
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