Compare software

Cloudflare Radar URL Scanner vs W3Techs Site Info: catalog facts
Cloudflare Radar URL Scanner	W3Techs Site Info
Free Free to use.	Free The website lookup, bookmarklet and extensions are free to use; a separate API is offered.
Web	Web, Browser extension
Reports technologies, security and performance in one scan Nothing to install	Identifies CMS, language, web server and hosting provider Bookmarklet and Firefox and Chrome extensions for the current page
Proprietary hosted service Only checks public URLs one at a time	Shows only what can be detected from outside the site Website carries advertising
Web application	Web application, Browser extension
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.