Tech Stack Detector
What's this site built with? Paste a URL — we sniff response headers, cookies, and HTML for fingerprints of CMS, framework, CDN, analytics and more.
We fetch the URL server-side and pattern-match against a small library of known fingerprints. No JavaScript executed — we see what crawlers see.
FAQ
How accurate is this?▼
We look at response headers, set-cookie names, and ~60 HTML fingerprints. That nails most public sites for CMS, framework, CDN, analytics. Heavily-obfuscated or custom-built sites may have fewer detections.
Why doesn't my JS framework show up?▼
We fetch raw HTML, no JavaScript execution. SPAs that render entirely client-side often look like a blank shell to first-pass scrapers — same as what search engines see.
Will this slow down or get blocked by the target site?▼
We send a single GET request with a clearly identified user-agent. Sites with aggressive bot protection may return 403 / challenge pages; in that case the tool reports what it got.
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