Detect what any site runs, track changes over time, compare competitors side by side, and get alerted when stacks shift. One API, full visibility.
curl "https://detectzestack.p.rapidapi.com/analyze?url=github.com" \ -H "X-RapidAPI-Key: YOUR_KEY" \ -H "X-RapidAPI-Host: detectzestack.p.rapidapi.com"
Every scan diffs against the previous snapshot. Added React? Dropped jQuery? Version bumped? The /changes API gives you a queryable feed of every technology change, with tier-gated history up to 365 days.
Register webhooks per domain. When a stack changes, you get an HMAC-signed payload within minutes. HTTPS only, automatic retries.
Side-by-side tech comparison of 2–10 sites in one request. Spot shared infrastructure, identify differentiators, benchmark against competitors.
Wappalyzer fingerprinting plus DNS CNAME detection (111 signatures), TLS certificate analysis, and custom header matching.
Batch up to 10 URLs in a single request. Concurrent processing, ordered results. Add ?format=csv for spreadsheet-ready export.
Same domain, cached response under 5ms. X-Cache headers let your code know when data is fresh. 24-hour TTL keeps results current.
| Plan | Requests / mo | Price | Change History |
|---|---|---|---|
| Basic | 100 | $0 | 7 days |
| Pro Popular | 1,000 | $9 | 30 days |
| Ultra | 10,000 | $29 | 90 days |
| Mega | 50,000 | $79 | 365 days |
| Feature | DetectZeStack | BuiltWith API | Wappalyzer API |
|---|---|---|---|
| Free tier | 100 req/mo | No | 50 req/mo |
| Batch analysis | Up to 10 URLs | No | No |
| Stack comparison | Built-in | No | No |
| DNS fingerprinting | 111 signatures | Yes | No |
| TLS cert detection | 8 issuers | No | No |
| Webhook alerts | HMAC-signed | No | No |
| Result caching | 24h TTL | No | 30 days |
| Change history | Up to 365 days | $295/mo | No |
| Starting price | $0 | $295/mo | $0 |
Pass any URL to /analyze and get back every technology, from frameworks to CDNs, with confidence scores.
Set up /history tracking, register webhooks for change alerts, and use /compare for competitive intelligence. The platform grows with you.
Get API updates, new features, and tech detection tips.