Webflow is the most powerful no-code website builder available, offering pixel-perfect visual design control with a built-in CMS, e-commerce, and advanced animation capabilities. Unlike most builders, Webflow gives designers and developers full CSS control through a visual interface — making it popular with agencies, freelancers, and in-house design teams who need professional results without a frontend developer. Every Webflow page is uniquely identifiable through injected data-wf-page and data-wf-site attributes on the HTML element, proprietary CSS classes (w-nav, w-layout-grid, w-dyn-item), and assets served from uploads-ssl.webflow.com and assets.website-files.com CDNs. The Webflow JS runtime (webflow.js) is loaded on every published site, and Webflow-hosted sites return server: Webflow in their HTTP headers. Site plans start at $14/month, with workspace plans for agencies from $19/month.
Detect Webflow Websites — Free Tool
Enter any URL to check if it was built with Webflow. Instant results, no account required.
How to Detect Webflow Websites
Script Patterns
3 patterns
CDN Domains
2 patterns
HTML Patterns
4 patterns
HTTP Headers
2 patterns
Meta Tags
2 patterns
1. Check the Page Source
Open the website in your browser, right-click, and select "View Page Source". Search for webflow-specific patterns in the HTML.
2. Look for Script Files
Check the Network tab in DevTools for JavaScript files loaded from Webflow domains.
3. Check CDN Domains
Network requests to these CDN domains indicate a Webflow site:
assets\.website-files\.comuploads-ssl\.webflow\.com4. Use AI Website Detector (Easiest)
Our automated scanner checks all these signals at once and gives you an instant confidence score. Just enter any URL above.
Frequently Asked Questions
Is this website built with Webflow?
You can detect if any website was built with Webflow by using our free scanner above. Just enter the URL and we'll analyze HTML patterns, JavaScript files, CDN domains, and HTTP headers to determine if Webflow was used — with a confidence score.
How to detect if a website was built with Webflow?
There are several ways to detect Webflow: (1) View the page source and look for Webflow-specific class names or script URLs, (2) Check the Network tab in DevTools for requests to Webflow CDN domains, (3) Use our free tool — we check 11 detection signals automatically.
What websites are built with Webflow?
Webflow is used by thousands of websites worldwide. Our scanner has detected many Webflow-built sites across different industries. You can scan any URL to check if it uses Webflow.
How accurate is the Webflow detection?
Our Webflow detection engine checks 11 unique fingerprint signals, achieving high confidence results. We score each match and return a confidence percentage so you know how certain the detection is.
About Webflow
Webflow is a leading ai website builder used by thousands of businesses and developers worldwide. Our detection engine can identify Webflow-built websites with high confidence by analyzing multiple technical signals.
Whether you're a developer doing competitive research, a designer looking for inspiration, or just curious about how a website was built — AI Website Detector gives you instant, accurate detection.
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Detection Info
- Category
- AI Website Builder
- Signals Used
- 11 patterns
- Accuracy
- High
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