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WordPress Theme Detector vs WhatCMS: catalog facts
WordPress Theme Detector	WhatCMS
Free Free to use.	Free Checking a single URL on the website is free; reports and batch detection are separate…
Web	Web
Identifies both the theme and active plugins No sign-up needed	Detects about 1,540 website technologies Reports framework, language, hosting and CDN alongside the CMS
Only useful for sites built on WordPress The site uses third-party analytics cookies	Detection relies on visible artifacts and can miss customised sites Lead generation features go beyond simple site checks
Web application	Web application
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.