CMS Detector — Find Out What CMS Any Website Uses

Paste a URL. Instantly see whether the site runs WordPress, Drupal, Joomla, Shopify, Wix, Squarespace, Webflow, Ghost, or another content management system. Free, instant, no signup.

Try: wordpress.org · squarespace.com · ghost.org · shopify.com

Content Management Systems This Detector Identifies

DetectZeStack recognizes traditional, hosted, and headless CMS platforms — by their HTML fingerprints, paths, headers, and cookies.

WordPress/wp-content/, generator tag
Drupalx-drupal-cache, /sites/default/
Joomla/media/jui/, generator tag
Shopifycdn.shopify.com, x-shopify
Wixwix.com static, X-Wix headers
Squarespacestatic1.squarespace.com
Webflowgenerator tag, wf- assets
Ghostgenerator tag, /ghost/ paths
Magento/static/version, Mage cookies
HubSpot CMShs-scripts, hubspot assets
Contentfulheadless API fingerprints
Sitecoresc_ params, headers
Adobe Experience Mgr/etc/clientlibs/, /content/
Craft CMSCraftSessionId cookie
TYPO3typo3temp/, generator tag
+ 50 morevia fingerprint signatures

How It Works

CMS detection cross-checks several independent signals so it doesn't get fooled by an embedded widget or a single stripped header.

Meta generator tag<meta name="generator" content="WordPress 6.5"> — the most direct tell when present.
Platform paths & assets/wp-content/, cdn.shopify.com, static1.squarespace.com — survive even when the generator tag is removed.
Headers & cookiesx-drupal-cache, x-shopify-stage, CraftSessionId, wordpress_logged_in — server-side fingerprints.

Need This in Code? Use the API

Same detection, programmatic — audit a portfolio of sites, segment prospects by platform, or monitor a migration.

curl "https://detectzestack.com/analyze?url=wordpress.org" \
  | jq '.categories.CMS'

# Output:
# ["WordPress"]

100 requests/month free — grab an API key. Paid plans from $9/month for 1,000 requests. Full docs: OpenAPI spec.

Frequently Asked Questions

How do I find out what CMS a website uses?

Paste the URL into the detector at the top of this page. It reads the HTML source, the meta generator tag, platform-specific paths, headers, and cookies to name the CMS in a couple of seconds.

Is this CMS detector free?

Yes — the on-page detector is free and requires no signup. For bulk or programmatic CMS detection, grab a free API key (100 requests/month, no credit card) with paid plans from $9/month.

Can it detect the WordPress theme and plugins?

It identifies WordPress itself plus common plugins (Yoast SEO, WooCommerce, Elementor) that leave a fingerprint. Theme detection is partial — heavily customized themes often hide their origin.

Why does a site show no CMS?

Custom builds, static-site generators (Next.js, Hugo, Jekyll), and headless architectures often have no traditional CMS fingerprint. Content may come from a headless CMS (Contentful, Sanity) served over an API instead of rendered on the page.

Is this more accurate than a browser extension?

Extensions only see what's rendered in your browser. This detector also inspects server response headers, cookies, and DNS that extensions can't reach — see DNS & TLS detection vs browser extensions.

Detect CMS Platforms Programmatically

100 free API requests per month. No credit card.

Get Free API Key

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