Compare software

CrUX Vis vs SpeedCurve: catalog facts
CrUX Vis	SpeedCurve
Free Free tool from Google.	Paid Commercial subscription service; demos are offered on request.
Web	Web
Uses real-user field data from Chrome Charts trends for a page or a whole origin	Synthetic testing and real user monitoring in one place Tracks Core Web Vitals and custom timings over time
Only covers sites with enough Chrome traffic to be in the report Shows measurements but does not run tests itself	Paid service aimed at businesses More than an individual needs for occasional checks
Web application	Hosted service
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.