Enter a public URL
Use a homepage or a public HTML page. The browser follows redirects and requests only the first document.
Public URL scanner · browser-side
Website technology checker
Check website technology signals from public HTML, script URLs, metadata, and CORS-exposed headers. See likely CMS, frameworks, CDN, analytics, and libraries with evidence and confidence.
Technology lookup, with evidence
Useful for a first-pass stack check
Website technology detection is an inference problem. A visible script path can be strong evidence, while a missing header is usually just a privacy or CORS boundary. This tool keeps those two facts separate.
Inspect visible signals
We look at metadata, HTML markers, script and stylesheet URLs, and headers that the target explicitly exposes to browsers.
Review confidence
Every detection includes an evidence note. No signal is treated as proof, and no private endpoint or bulk database is queried.
Keep researching
More developer tools for the next step
FAQ
Website technology checker questions
Can this check any website?
It can check sites that allow a browser-readable cross-origin HTML request. If a site blocks CORS, the browser stops the scan and the tool explains why without sending the URL to our server.
Does it know every technology on a website?
No. It reports public signals that are visible in the first HTML document. Hidden APIs, private headers, server-side packages, and technologies without public markers will not be reliable.
Is this an official Wappalyzer, BuiltWith, or Similarweb product?
No. This is an independent, lightweight checker from AI Coding Tools Guide. It does not copy or query third-party proprietary technology databases.
Are scan results stored?
No. The scan runs in your browser. The site does not receive the URL or the fetched HTML from this MVP.