How to Detect Webflow Websites

Webflow is one of the most fingerprint-rich website builders. Its unique CSS class conventions and CDN patterns make it highly detectable.

Primary Signals

1. HTML Attributes (High Confidence)

Webflow injects specific data attributes into every page it generates:

data-wf-page — unique page ID on every Webflow page

data-wf-site — unique site ID

w-nav, w-layout-grid, wf-form — proprietary CSS classes

Any page with data-wf-page is almost certainly built with Webflow.

2. CDN Domains (High Confidence)

Webflow serves assets from two CDN domains:

uploads-ssl.webflow.com — uploaded media files

assets.website-files.com — static site assets

3. Meta Generator Tag

4. HTTP Headers

Webflow-hosted sites respond with:

server: Webflow

x-powered-by: Webflow

5. JavaScript File

Every Webflow site loads webflow.js — a script that handles interactions and animations.

Manual Detection Steps

Right-click the page → View Page Source

Search (Ctrl+F) for data-wf-page

If found, it's Webflow

Webflow CMS vs. Webflow Static

Webflow also has a CMS mode — CMS-powered Webflow sites contain additional class names like w-dyn-item and w-dyn-list for dynamic content lists.

Automated Detection

Our scanner checks all Webflow signals simultaneously and returns a confidence score.