Website Technology Checker

Website Technology Checker inspects a page's response headers and HTML for known signatures and reports the web server, CDN, CMS, framework, analytics tool and reverse proxy it can identify.

This is useful for getting a quick read on how a competitor's site is built, confirming a CMS or framework migration actually took effect in production, or auditing which third party analytics scripts a site is currently loading.

Detection works by pattern matching against known markers in headers and markup, so it can miss anything deliberately hidden or simply not yet recognised. A result of not detected means no known signature was found, not that a site definitely does not use that technology.