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Technology Detector

Detect the web server, frameworks, CMS and libraries a site runs, with the evidence for each match.

RECON · SERVER-SIDE · RATE LIMIT 30/MIN

Rate limited: 10 runs in a burst, 30 per minute. Results are never stored. Too long to share as a link.

HISTORY

Your last 5 runs appear here for 7 days, on this device only.

RESULT

Fill in the form and run the tool; the result appears here.

Technology Detector fetches a URL once and fingerprints the web server, CMS, JavaScript framework and other software running behind it, matching response headers, cookie names, meta tags, script URLs and the first 256 KB of the page against a list of about 100 signatures.

How to read the result

The table lists each match with its category (such as cms, framework, analytics or web-server), a version when the evidence carries one, and the specific evidence that identified it, so you can judge confidence yourself rather than trust a bare label. The Server and Powered by rows show those raw header values when present.

Defender tips

  • Suppress version numbers in server banners where the software allows it; a fingerprint that names the product is far less useful to an attacker than one that also names the exact version and its known vulnerabilities.
  • Keep everything this tool can fingerprint patched; if it is visible from the outside with no authentication, assume an attacker will find it the same way.
  • Remove unused plugins, themes and admin panels rather than merely disabling them; dormant code left reachable is still a fingerprintable, exploitable surface.

FAQ

Why does it show technologies I removed?

Cached responses, CDNs and leftover static assets (a favicon, a JS bundle) can still carry old signatures after the underlying software changed. Re-check after clearing any CDN cache.

Can it detect the backend language?

Sometimes, from headers or cookie names it leaves behind (a session cookie name is often a strong hint), but a well-hardened backend can hide this entirely, and an empty result does not mean nothing is running.

How accurate are the results?

It is signature matching, not certainty. Two technologies can share evidence, and version numbers are estimates when shown at all; treat results as a starting point for further checks.