Question 1

How does website technology detection work?

Accepted Answer

The checker fetches a page's HTML and response headers and matches them against known signatures — script paths, meta generator tags, cookie names, and header values that frameworks, CMS platforms, and hosting providers commonly leave behind.

Question 2

Can it detect the backend language and web server?

Accepted Answer

Yes. It reads the Server and X-Powered-By headers plus cookie names (PHPSESSID → PHP, laravel_session → Laravel, JSESSIONID → Java, connect.sid → Express, csrftoken → Django) to infer the backend language, framework, and web server. When a site sits behind a CDN like Cloudflare, the origin web server is hidden — the tool says so rather than guessing.

Question 3

Why didn't it detect everything a site uses?

Accepted Answer

Detection relies on visible signatures in HTML, headers, and cookies. Server-side-only tools, custom builds, or heavily obfuscated code may not leave a detectable trace, and a CDN can hide the origin server.

Website Technology Checker

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