Contentful
Contentful is an API-first content management platform to create, manage and publish content on any digital channel.
About
Contentful is an API-first content management platform to create, manage and publish content on any digital channel.
Categories: CMS
Quick facts
Detection methodology for CMS
For content management systems we lean on the most stable signals each platform leaves behind: the `<meta name="generator">` tag, asset URL prefixes (`/wp-content/`, `/sites/default/files/`, `/cdn.shopify.com/`), distinctive cookie namespaces (`wordpress_*`, `_shopify_*`, `Drupal.*`) and admin-route signatures (`/wp-admin/`, `/user/login`). When the visible site is a JavaScript framework with a headless CMS underneath, we surface the CMS SDK from the bundle (`@sanity/client`, `contentful`, `@storyblok/react`) — the fingerprint that survives even when the HTML carries no traditional CMS markers.
How we detect Contentful
Each signal alone is rarely conclusive — Sourcemap Explorer cross-references all of them and weights by confidence. You can reproduce any of these checks yourself in Chrome DevTools.
Server-side fingerprint: the response header reveals the technology behind the page. Visible in DevTools → Network → response headers.
Server: ^Contentful Images API$
x-contentful-request-id:
Substring or regex match against the page HTML — typically a unique class, comment marker, or asset path.
<[^>]+(?:assets|downloads|images|videos)\.(?:ct?fassets\.net|contentful\.com)
Script URL pattern. Typically a CDN host or chunk path that ships with the technology.
\.ctfassets\.net
FAQ
How do I check if a website is using Contentful?
Open the page in Chrome, click the Sourcemap Explorer toolbar icon, and read the Stack tab. The popup matches Contentful's fingerprint signals (response headers, asset URL prefixes, runtime globals, sourcemap paths) and flags it whenever any combination is found. The same checks can be reproduced manually in DevTools — see the "How we detect" section above.
What Contentful version can Sourcemap Explorer detect?
Contentful ships as a hosted cms rather than a bundled npm package, so version-specific detection isn't always possible. Where the platform leaks a version in response headers (`X-Powered-By`, `Server`, generator meta tags) we surface it; otherwise we report presence only.
Is Contentful a SaaS or self-hosted?
Contentful is offered as a hosted SaaS product. Detection runs against the JavaScript SDK or asset-URL fingerprints the platform ships into pages.
How much does Contentful cost?
Contentful's pricing model is documented as: mid, freemium, recurring. Detection is independent of the pricing tier — Sourcemap Explorer flags the technology by its fingerprints, regardless of which paid plan a site is on. See the official site for the current pricing page.
Where can I read more about Contentful?
Official site: https://www.contentful.com. For Sourcemap Explorer's detection guide, see the deep-dive link below or the related guides in the cross-link section.
Keep reading on Sourcemap Explorer
Practical guides
Detection deep dives
Alternative tools
Detected by Sourcemap Explorer
Open the popup on any page running Contentfuland you'll see the exact version pulled from the bundled package.json when sourcemaps are exposed.