What Is This Website Built With?
Detect the CMS, framework, programming language, web server and CDN powering any website. Free technology lookup, no signup.
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.
More technology and CMS tools
WordPress Version Checker
Detect any site's WordPress core version and whether it is out of date.
Drupal Version Checker
Find the Drupal core version any site is running.
Joomla Version Checker
Find the Joomla version any site is running.
Magento Version Checker
Detect the Magento / Adobe Commerce version of any store.
Ghost Version Checker
Detect the Ghost CMS version any site is running.
WordPress Security Scanner
Full WordPress scan: core, plugins, themes and CVEs.
That's Just the Beginning
FREEThis Website Technology Checker scan caught some issues. Run a Full Security Scan to uncover hidden threats like exposed secrets, malicious scripts, and supply chain attacks this quick check missed.