CMS & Technology Detector
Find out what CMS, framework, or platform any website is built with. Detects WordPress, Shopify, Wix, Next.js, and 20+ more.
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Why CMS Detection Matters
Knowing what CMS or framework a competitor uses reveals their technical capabilities, limitations, and likely infrastructure costs. If a high-ranking competitor runs on WordPress, you know they have access to a specific plugin ecosystem. If they use Shopify, their checkout and product page structure follows predictable patterns you can study. For agencies, CMS detection helps scope migration projects and identify upsell opportunities. For security researchers, knowing the CMS is the first step in assessing the attack surface.
How CMS Detection Works
The detector analyzes multiple signals in the page's HTML, HTTP headers, and asset URLs. Generator meta tags are the most reliable indicator — WordPress, Joomla, and Drupal all set a meta generator tag by default. Asset paths provide secondary evidence: WordPress loads from /wp-content/, Shopify from cdn.shopify.com, and Next.js from /_next/. JavaScript global objects like window.__NEXT_DATA__ or Shopify.theme confirm framework-level detection. The tool cross-references these signals to produce a confident identification.
Popular CMS and Framework Signatures
- WordPress: Identified by the meta generator tag, /wp-content/ and /wp-includes/ asset paths, and the wp-json REST API endpoint. Powers over 40% of all websites and is the most commonly detected CMS.
- Shopify: Detected via cdn.shopify.com asset URLs, the Shopify.theme JavaScript object, and characteristic checkout page structure. Dominates the e-commerce platform market alongside WooCommerce.
- Wix: Identified by static.parastorage.com and static.wixstatic.com asset domains, the X-Wix-* HTTP headers, and the wix-viewer-model script. Uses a proprietary rendering engine that produces distinctive HTML structure.
- Squarespace: Detected via static1.squarespace.com assets, the squarespace-headers meta tag, and the Static.SQUARESPACE_CONTEXT JavaScript object. Popular with creative professionals and small businesses.
- Next.js: Identified by the /_next/ asset prefix, the __NEXT_DATA__ script tag containing page props, and the x-powered-by: Next.js HTTP header (when not stripped). The leading React meta-framework for production web applications.