Tech Stack
Technology Lookup
Find out what CMS, JavaScript framework, analytics, CDN and other technologies a website uses.
Detects common, publicly-identifiable technologies from a page's HTML, response headers and cookies — not a clone of commercial tools with proprietary fingerprint databases, so obscure or heavily-customized stacks may not be detected.
About this tool
Comprehensive documentation & audit utility guideEvery technology a website uses leaves some kind of public fingerprint — a meta tag, a script URL, a response header, a cookie name. This tool checks a page against a library of common, well-known signals to identify what it's likely built with, without needing a proprietary fingerprint database or paid API.
How it works
1
Enter a URL
Any public website you're curious about.
2
We fetch and inspect it
HTML content, response headers, and cookies are checked against known signals.
3
Review by category
Detected technologies grouped as CMS, frameworks, analytics, CDN, and more.
What it checks
CMS and ecommerce platforms (WordPress, Shopify, Wix, and more)
JavaScript frameworks and libraries (React, Next.js, Vue, jQuery, and more)
Analytics and tag management (Google Analytics, GTM, Meta Pixel, and more)
CDN and hosting providers (Cloudflare, Vercel, Netlify, and more)
Payment processors, marketing tools, fonts, security/bot protection, and web servers