Technology and CMS Detector
Enter a URL: the tool compares response headers, HTML, scripts and cookies with a signature list and shows what it found, with a confidence level and the matching clue.
Privacy and cost
This tool runs a live check on our servers. Free accounts get 3 live checks per day in total across all such tools. We keep your report in your account so you can delete it any time.
How it works
- The page is downloaded once (headers, HTML, script and stylesheet URLs).
- Each signature adds up clues: header, HTML pattern, script, generator tag or cookie.
- Technologies are grouped by category with a confidence percentage and the evidence that triggered the detection.
Example
A "server: cloudflare" header with cf-ray and a link to /wp-content/ give Cloudflare (CDN) and WordPress (CMS), each with its clue shown.
What the result means
Detection is an estimate based on public signatures: a site can hide its headers, and a dynamically loaded script or client-side rendering may escape analysis. A technology missing from the list is not necessarily absent from the site.
Common problems this tool helps with
- Knowing which CMS or framework a competitor's site runs on before an audit.
- Spotting tracking or chat scripts that weigh the page down.
- Checking which CDN or host is answering.
- Identifying versions or modules exposed publicly.
Frequently asked questions
Is detection 100% reliable?
No. It relies on signatures and shows a confidence. Several matching clues give a safer result than a single one.
Are technologies loaded by JavaScript seen?
Only if their tag or script appears in the HTML the server returns.
Does the tool send many requests?
A single request to the page you analyse.
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