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30+ Technologies

Technology Detector
What's Behind Any Site

Discover what CMS, frameworks, analytics, hosting, and libraries any website uses. Perfect for competitive research.

CMS Detection
100% Free
Instant Results

Tech Detection FAQ

How does technology detection work?
Our tool analyzes the website's HTML source code, HTTP response headers, JavaScript variables, and CSS patterns to identify technologies. Each technology has unique fingerprints we match against.
What technologies can you detect?
We detect 30+ technologies including CMS platforms (WordPress, Shopify, Drupal), frameworks (React, Next.js, Vue.js), CSS frameworks (Tailwind, Bootstrap), analytics tools, CDNs, and hosting providers.
Is this similar to BuiltWith or Wappalyzer?
Yes, it works on similar principles — analyzing page source and headers for technology signatures. Our tool is completely free with no usage limits.
Why would I want to know what tech a site uses?
Competitive analysis, identifying tools for your own projects, understanding security implications, evaluating potential partners/vendors, and SEO research.

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About this tool

Tech stack detectors are usually a parlor trick — fun to run on a competitor, mostly useless for actual decisions. We tried to make this one useful for decisions.

What it tells you: the CMS, the JavaScript framework, the rendering strategy (server-rendered, static, hydrated SPA), the analytics stack, the ad tech, the font provider, and the CDN. What that means for your SEO: a Webflow site with a Squarespace-style "all hidden behind animations" hero usually loses Core Web Vitals; a React SPA without proper SSR is competing for AI citation with one hand tied; a site shipping fifteen analytics scripts has a TTFB problem dressed up as a marketing problem.

Detection works by reading HTTP response headers, HTML/script signatures, cookie names, and resource loading patterns. Sites behind aggressive CDNs (Cloudflare with everything obfuscated) sometimes return partial results. If you really want to know what's running, the inspector's "Network" tab + a few minutes of curiosity will always beat any automated detector.

Frequently asked questions

What can the tool detect?+
CMS (WordPress, Webflow, Framer, Shopify), JavaScript frameworks (React, Next.js, Vue), analytics tools, ad networks, font providers, and CDN.
Why does this matter for SEO?+
Different stacks have different SEO ceilings. JavaScript-heavy single-page apps need extra work for crawlability; some CMS plugins inject performance-killing scripts you don't see in your editor.
How accurate is detection?+
Detection is based on HTTP headers, HTML signatures, and known fingerprints. Sites that obscure their stack (CDN, custom builds) may produce partial results.
Can I detect technology on a competitor's site?+
Yes. Any publicly accessible URL can be scanned — there's no login or rate limit beyond fair-use throttling.

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