What Is This Website Built With?

Detect the CMS, framework, programming language, web server and CDN powering any website. Free technology lookup, no signup.

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No credit card required • Instant results

CMS & framework

Identifies WordPress, Shopify, Drupal, Next.js, Laravel and hundreds more.

Server & language

Fingerprints the web server (Nginx, Apache, IIS…) and backend language.

CDN & hosting

Detects Cloudflare, Fastly, Akamai and other CDNs in front of the site.

Evidence & confidence

Each finding shows the evidence (headers, cookies, markup) and a confidence level.

FAQ

How does it figure out what a site is built with?

It inspects passive signals - HTTP response headers, cookies, HTML markup, script paths, and loaded resources, and matches them against a library of technology signatures, reporting a confidence level for each match.

Which CMS platforms can it detect?

WordPress, Shopify, Drupal, Joomla, Ghost, BigCommerce, OpenCart and many more, plus front-end frameworks (React, Vue, Angular, Next.js) and back-end stacks (PHP, Node.js, ASP.NET, Django, Rails, Laravel…).

Is it accurate?

Sites can hide or spoof some signals, so treat low-confidence results as hints. High and very-high confidence findings are backed by strong, hard-to-fake evidence like specific headers or framework fingerprints.

This is one check. A full scan runs them all.

Free

The Website Technology Checker covers one area. A full scan runs every check on the same site in one go, so nothing it does not reach goes unnoticed.

Covered by this check

  • CMS & framework detection
  • Web server & language fingerprinting
  • CDN & hosting detection
  • Evidence and confidence scoring

Added by a full scan

  • SSL certificate validation
  • Security headers analysis
  • Vulnerability scanning
  • WordPress security checks
  • DNS & Email security
  • Domain reputation checks
  • Misconfiguration detection
  • Continuous monitoring & change alerts
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Want it checked automatically? A free account rescans one site every week and emails you new findings. No credit card.

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