What indicators should I search for in the source code to determine if a website was built using the Webflow platform?
TL;DR
- Check the site's source code for Webflow-specific URLs (e.g., webflow.css, uploads-ssl.webflow.com) and class names with the "w-" prefix.
- Look for a Webflow generator meta tag, Webflow-specific JavaScript (e.g., Webflow.push), and hosting on webflow.io domains.
To determine if a website was built using Webflow, look for specific markers in the source code that are common across Webflow-exported or hosted projects.
1. Check for Webflow-Specific Files and URLs
- Look for URLs containing
webflowin the CSS or JavaScript file paths, such as: /css/webflow.cssorwebflow.js- CDN references like
https://uploads-ssl.webflow.com,https://assets.website-files.com - These URLs indicate the site might be hosted on or exported from Webflow.
2. Look for Webflow Class Patterns
- Webflow auto-generates classes with hyphenated alphanumerical strings, like:
w-nav,w-container,w-button,w-form, etc.- These
w-prefixes are deliberate and signal Webflow elements/components.
3. View Meta Tags
- Check for a generator meta tag like:
<meta name="generator" content="Webflow">- This tag is often present by default in sites exported or hosted via Webflow.
4. Identify Webflow Scripts
- Look for
Webflow.pushorWebflow.requirepatterns in inline scripts. - These indicate that Webflow-specific JS libraries are in use.
5. Check Hosting Structure
- Webflow-hosted sites often use subdomains or domains with:
webflow.io(e.g., yoursite.webflow.io) before going live on a custom domain.
6. Look at Comments or Footer Credit
- Some projects may leave in default comments or a "Powered by Webflow" footer.
- While many sites remove this, it’s still worth checking.
Summary
To verify if a site was built with Webflow, inspect the source code for Webflow-hosted assets, w- class names, a Webflow generator meta tag, and specific JS behavior like Webflow.push. These indicators collectively confirm Webflow usage.