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Lookyloo vs Cloudflare Radar URL Scanner: catalog facts
Lookyloo	Cloudflare Radar URL Scanner
Free Free and open source, with a free public instance run by CIRCL.	Free Free to use.
Web, Self-hosted	Web
Maps redirects and every loaded resource Can capture through Tor, I2P or proxies in several countries	Reports technologies, security and performance in one scan Nothing to install
Public instance captures are visible to its administrators Aimed at analysts rather than casual users	Proprietary hosted service Only checks public URLs one at a time
Web application, Self-hosted	Web application
Open source	Closed source
License: BSD-3-Clause	License not stated
No account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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