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Hey everyone! I'm the maker of DetectZeStack. I built this because I needed tech stack data for a sales pipeline and the existing options were either too expensive (BuiltWith starts at $295/month) or too limited (Wappalyzer's API misses infrastructure-level tech). The key insight was combining multiple detection methods. Wappalyzer is great for front-end frameworks but misses CDNs and...
DetectZeStack — Tech Stack Detection APIDetect any website's tech stack with a single API call
REST API that identifies what technologies any website uses. Pass a URL, get back the full stack — frameworks, CMS, CDNs, analytics, and more.
4 detection methods in a single call: Wappalyzer fingerprinting (3,500+ signatures), DNS CNAME analysis, TLS certificate inspection, and HTTP header matching.
Batch analysis (10 URLs), stack comparison, CPE identifiers for vulnerability mapping, and 24h smart cache. Free tier: 100 req/month.
DetectZeStack — Tech Stack Detection APIDetect any website's tech stack with a single API call