Marketing, demand and conversion · Performance, accessibility and experimentation
CrUX API/History
Licence or access: free official aggregate Chrome field data
- license status
- free official aggregate Chrome field data
- role
- eligible URL/origin/form factor → rolling distributions/history
- limitations
- insufficient-traffic gaps, lag, overlapping windows/no SLA
- official source
- API · Methodology
Official sources
- API https://developer.chrome.com/docs/crux/api
- Methodology https://developer.chrome.com/docs/crux/methodology/
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