Free tools
Analyzes HTTP headers and a URL's public HTML to detect signals of common technologies: CMS (WordPress, WooCommerce), frameworks (Next.js, Laravel), platforms (Shopify, Wix) and web servers.
We look for known signatures in headers (Server, X-Powered-By), typical cookies, and path or script patterns in the public HTML, with no need for server access.
Only what is externally visible gets detected. A well-configured site can hide several of these signals without that implying a problem.
Frequently asked questions
No, we check a limited set of common signatures, similar in spirit to web fingerprinting tools but without a commercial database.
The site may use technologies outside the signatures we check, or it may deliberately hide identifying headers.