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Cloudflare Radar URL Scanner vs Netcraft Site Report: catalog facts
Cloudflare Radar URL Scanner	Netcraft Site Report
Free Free to use.	Free Free to use under Netcraft's fair use policy.
Web	Web
Reports technologies, security and performance in one scan Nothing to install	Shows hosting, server and technology details in one report Includes hosting history and certificate details
Proprietary hosted service Only checks public URLs one at a time	Subject to a fair use policy Some features may not work in older browsers
Web application	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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