Identifying whether a website was built with Durable used to require technical expertise — inspecting source code, tracing network requests in DevTools, and knowing which patterns to look for. Our free scanner automates all of that: it fetches the page, analyzes 8 Durable-specific signals, and returns a verdict with a confidence score.
You might want to detect Durable for competitive research, due diligence before acquiring a site, or simple curiosity. Whatever the reason, this page covers every method — automated and manual.
Durable is an AI website builder that generates complete business websites in 30 seconds using artificial intelligence. It creates copy, images, and layouts automatically. Durable sites are served through their proprietary CDN (cdn.durable.co) and contain specific fingerprints in their markup.
It is primarily used for marketing sites, landing pages, portfolios, and business websites — all generated from prompts or visual editors with AI assistance.
Visit Durable official websiteOur detection engine checks 8 unique Durable fingerprints. Here are the most reliable signals:
Assets (images, scripts, fonts) are loaded from Durable-specific CDN domains. This is one of the most reliable signals because CDN domains are hard to hide.
cdn.durable.codurable-staticDurable loads specific JavaScript runtime files or loads scripts from identifiable URLs. Checking script src attributes reveals the platform.
durable.cocdn.durable.coDurable-hosted sites respond with specific HTTP headers that identify the platform or infrastructure. These are visible in DevTools → Network tab.
serverx-powered-byDurable injects proprietary class names, data attributes, or markup patterns into the page HTML that are unique to the platform.
durable-sitedata-durableCtrl+U (Windows) or Cmd+Option+U (Mac)Ctrl+F) for durable or durableF12 to open DevToolsdurable in the search boxWhen you submit a URL, our engine fetches the page from its server — just like a browser would — then analyzes the response across 8 Durable-specific fingerprints:
Script analysis
We scan all loaded JavaScript files for known CDN paths and runtime names
CDN domain matching
We cross-reference every asset request against known platform CDNs
HTML pattern scanning
We search the DOM for platform-specific class names and data attributes
Header inspection
We read HTTP response headers that identify the server or platform
Meta tag extraction
We check generator and other meta tags in the document head
Confidence scoring
We weight each matched signal and normalize to a 0–99% score
Sign up at https://durable.co and describe your website in plain language. The AI generates a complete site in seconds that you can customize, connect a domain to, and publish.
Other popular AI website builders include Framer, Durable, Lovable, Gamma, and Mixo.
Get started with DurableThe most reliable ways to detect Durable are: (1) open DevTools → Network tab and look for requests to Durable-specific CDN domains, (2) view page source and search for Durable-specific class names or data attributes, (3) use our free scanner — we check 8 detection signals automatically and return a confidence score.
Yes, completely free. Paste any URL into our scanner and we'll analyze it for Durable fingerprints immediately. No account required, no limits on scans.
We check 8 unique Durable fingerprint signals across HTML, JavaScript, CDN domains, meta tags, and HTTP headers. Our confidence score reflects how many signals matched — a score above 70% is a strong indicator. We cap accuracy at 99% to reflect that all fingerprint-based detection is probabilistic.
Yes. Custom domains don't hide the underlying platform. The JavaScript files, CDN requests, HTML attributes, and server headers all remain identifiable regardless of the domain name used. Our scanner fetches the page directly and analyzes its technical composition.
If you want to build something similar, visit https://durable.co to learn more or sign up. If you're doing competitive research, our scan result also shows the full technology stack — including hosting platform, domain age, and other detected technologies. You can share the result link with your team.