Enter any website URL to instantly detect what CMS, website builder, or framework it's using — plus the technologies powering it.
Detects WordPress, Shopify, Wix, Squarespace, Webflow, Drupal, Ghost, and many more.
Also identifies analytics, frameworks, CDNs, payment providers, and more.
Shows exactly what signals were found — meta tags, headers, asset paths, and more.
Enter any URL and get results in seconds. No sign-up or login required.
Our tool fetches the target website and analyzes its HTML source code, HTTP response headers, and asset URLs for known CMS fingerprints. Each CMS and website builder leaves unique traces — meta generator tags, CDN paths, JavaScript libraries, CSS class prefixes, and server headers. We check against 20+ known platforms and assign a confidence score based on the number and strength of signals found.
Web developers researching competitor tech stacks, marketers evaluating platform options, agencies scoping potential client projects, SEO professionals auditing websites, and anyone curious about what technology powers the websites they visit. Understanding what CMS a site uses can inform decisions about migrations, integrations, and competitive analysis.
Detection accuracy depends on how much the website exposes. Sites that strip meta tags, use heavy CDN caching, or run behind reverse proxies may be harder to identify. Our confidence scoring (High, Medium, Low) reflects the strength of the signals found. Custom-built websites with no recognizable CMS fingerprints will return “No CMS Detected.”
We fetch the website's HTML and headers, then scan for known fingerprints — generator meta tags, CDN URLs, CSS classes, JavaScript libraries, and server headers. Each CMS leaves unique traces that allow identification.
Yes. The CMS detector is completely free to use with no account required. Check as many websites as you need.
Some websites are custom-built or use a CMS that strips identifying information. Sites behind heavy CDN caching or reverse proxies may also hide CMS signals. It doesn't necessarily mean the site has no CMS — just that we couldn't detect one.
Currently the tool focuses on CMS/platform detection and general technologies. It detects WordPress itself but not specific themes or plugins. We may add theme and plugin detection in a future update.
“High” means multiple strong signals were found (e.g., generator meta tag plus CDN paths). “Medium” means a few signals were detected. “Low” means only weak or indirect signals were found — the result may be less certain.
It works with any publicly accessible website. Sites that require login, block automated requests, or are behind firewalls may not be detectable. The site must be reachable from the internet.