CMS Detector
Free CMS detector — fetch any website and detect its content management system from HTML signatures like WordPress, Shopify, Wix, Webflow and more.
About the CMS Detector
Knowing which content management system a site runs on is useful for competitor research, lead generation, and choosing your own platform. This free CMS detector fetches any public page server-side and scans its HTML for the tell-tale signatures each platform leaves behind.
It looks for signals like /wp-content/ and generator meta tags for WordPress, Shopify's CDN and object, Wix and Squarespace markers, Webflow attributes, Drupal and Joomla fingerprints, and framework hints such as Next.js's __NEXT_DATA__. Each match is reported with the evidence found, so you can see exactly why the tool reached its conclusion.
Because detection is signature-based, it identifies the vast majority of mainstream sites instantly. Sites on custom or heavily obfuscated stacks may show no clear match, in which case the tool says so rather than guessing. Pages are fetched through our proxy so you can check any public URL.
How to Use the CMS Detector
- 1Enter the website URL you want to analyse.
- 2Click Detect CMS to fetch and scan the page.
- 3Read the detected platform and the HTML signatures that matched.
- 4Try an inner page too if the homepage is inconclusive.
Frequently Asked Questions
How does CMS detection work?
Every CMS leaves fingerprints in a page's HTML — specific file paths, meta generator tags, class names, script sources and cookies. This tool fetches the page and matches those patterns against a library of known signatures, so a path like /wp-content/ reveals WordPress and a cdn.shopify.com reference reveals Shopify.
Which platforms can it detect?
Common systems including WordPress, Shopify, Wix, Squarespace, Webflow, Joomla, Drupal, Ghost and Blogger, plus framework signals like Next.js, Gatsby and React. Because it is signature-based, coverage focuses on popular platforms that account for most of the web.
Why can't it detect some sites?
Sites built on fully custom code, headless setups, or platforms that strip their fingerprints may show no clear signature. Aggressive caching, proxies or security layers can also mask signals. When there is no confident match, the tool reports that rather than guessing incorrectly.
Can I tell if a site uses WordPress?
Yes — WordPress is one of the easiest to detect because it exposes /wp-content/ and /wp-includes/ paths, a 'generator' meta tag, and often a /wp-json/ API endpoint. If any of these appear, the tool flags WordPress with high confidence.
How is this different from a technology checker?
A CMS detector focuses on identifying the content management platform, while our website technology checker casts a wider net across frameworks, analytics, fonts, CDNs and server hints. Use the CMS detector for a quick platform answer and the technology checker for a full stack breakdown.