Free Tool · Developer
Tech Stack Detector
Detect the framework, CMS, CDN, analytics, and marketing tools any website uses — from its public response headers and page source. No login required.
Try:
How It Works
Server-side fetch analyzes public HTML source and response headers — no browser plugins, no installation required.
01
Enter any URL
Enter a domain like shopify.com or click one of the example sites. HTTPS is assumed if no protocol is specified.
02
Server fetches + analyzes
30+ technology signatures are checked against the page's HTML source and HTTP response headers. 7 categories: Framework, CMS, Hosting, Analytics, E-commerce, Marketing, Language.
03
See tech + security score
Each detection shows confidence (high/low) and the exact evidence. Security headers are scored out of 5.
Live result — shopify.com (verified)
Shopifyhighcdn.shopify.com in page source
Cloudflarehighcf-ray response header present
Google Analyticshighgoogletagmanager.com in page source
✓
HTTPS
✓
HSTS
✓
X-Frame
✓
CSP
✓
X-Content
Security score: 5/5