Free & No Signup — 170+ Technologies

Tech Stack Detector

Enter any URL and discover what technologies power it — frameworks, CMS, hosting, analytics, and more

How It Works

Our scanner fetches the target website's HTML and HTTP headers, then pattern-matches against 170+ technology signatures to identify frameworks, CMS platforms, analytics tools, and more.

What We Detect

  • CMS platforms (WordPress, Shopify, Wix, Webflow, Drupal)
  • Frontend frameworks (React, Vue, Angular, Svelte, Next.js)
  • CSS frameworks (Tailwind CSS, Bootstrap, Bulma)
  • JavaScript libraries (jQuery, GSAP, Three.js, D3.js)
  • Analytics & tracking (Google Analytics, Hotjar, Mixpanel)
  • Web servers (Nginx, Apache, LiteSpeed, Caddy)
  • CDN/Hosting (Cloudflare, Vercel, Netlify, AWS)
  • Advertising networks (AdSense, Taboola, Outbrain)
  • Cookie consent tools (CookieBot, OneTrust)
  • Email infrastructure (Google Workspace, Microsoft 365, SendGrid)
  • Security headers, SSL certificates & DNS records
  • WordPress plugins (Yoast SEO, Elementor, WooCommerce)

Detection Limitations

  • Backend languages (Ruby, Python, Go, Java) — only visible if leaked via headers
  • SSR frameworks (React, Vue with SSR) — markers stripped in production builds
  • Databases (MySQL, PostgreSQL, MongoDB) — never exposed to frontend
  • Internal tools (Docker, Kubernetes, CI/CD) — server-side only
  • Sites behind WAF — Cloudflare/Akamai may block scanning

This tool scans HTML source, HTTP headers, cookies, and DNS records. Unlike browser extensions (Wappalyzer), it cannot execute JavaScript or access server internals.

Frequently Asked Questions

What is a tech stack detector?

A tech stack detector analyzes any website URL and identifies the technologies it uses, including frontend frameworks (React, Vue, Angular), CMS platforms (WordPress, Shopify), hosting providers (Cloudflare, Vercel), analytics tools, and more.

How does this tool detect website technologies?

It fetches the website's HTML source code and HTTP response headers via server-side request, then pattern-matches against a database of 170+ technology signatures. It checks HTML patterns, script URLs, meta tags, HTTP headers, cookies, CSS patterns, and DNS records.

Is this tool free to use?

Yes, Tech Stack Detector is completely free with no signup required. You can scan unlimited websites and export results as JSON.

How is this different from BuiltWith or Wappalyzer?

Unlike BuiltWith (paid for detailed reports) and Wappalyzer (requires browser extension), this is a free web-based tool that works instantly. It also provides performance analysis, security headers, DNS records, SSL certificates, and SEO meta tags in one scan.

Can it detect backend technologies?

Backend technologies (like Python, Ruby, Java) are only detectable when the server leaks information via HTTP headers (e.g., X-Powered-By). Databases and internal infrastructure are never exposed to the frontend and cannot be detected by any passive scanner.