75+ signatures.
Headers and HTML.
Stack fingerprinting without browser automation. HTTP response headers carry most of the signal — the rest comes from script src attributes, inline patterns, and class names in the HTML. No JavaScript execution required.
Detection coverage — 75+ technologies
CMS
Website Builders
Frameworks
E-commerce
CDN / Hosting
Analytics
Marketing & Chat
Payments
Auth
Monitoring
Compliance
AI Builders
Detection methods
HTTP Header signals
Server, X-Powered-By, CF-Ray, X-Amz-CF-Id, X-Drupal-Cache, and 14 other response headers that reveal hosting, CDN, and framework.
HTML pattern matching
Script src URLs, inline class names, meta generator tags, and asset path patterns (wp-content, gatsby-plugin, __next, etc.) across 40+ signatures.
Tracker and script audit
External script count, inline JS weight (KB), third-party domain list, and 14 named tracker patterns from Facebook Pixel to Datadog RUM.
Live scanner
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