Compare software

Netcraft Site Report vs BuiltWith: catalog facts
Netcraft Site Report	BuiltWith
Free Free to use under Netcraft's fair use policy.	Freemium Free single-site lookups with paid plans for reports and bulk data.
Web	Web, Browser extension
Shows hosting, server and technology details in one report Includes hosting history and certificate details	Identifies CMS, analytics, CDN and hosting from a single domain Free lookups for individual sites
Subject to a fair use policy Some features may not work in older browsers	Detailed reports and bulk data require paid plans Detection is inference-based and can miss or misreport technologies
Web application	Hosted service, Browser extension
Closed source	Closed source
License not stated	License not stated
No account 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.