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See how WhatStack compares to Wappalyzer for website technology detection. Wappalyzer is a browser extension and API service that identifies web technologies on websites you visit.
| Feature | WhatStack | Wappalyzer |
|---|---|---|
| Server-side detection | API only (paid) | |
| Browser extension | ||
| Free API access | ||
| Version detection | ||
| CMS detection | ||
| Framework detection | ||
| Hosting detection | Limited | |
| News detection | ||
| Starting price (API) | Free | $250/mo |
| Compatible signature format |
Server-side detection via API. No browser extension needed — works from any backend or script.
Start with 500 free API requests per month. Wappalyzer API starts at $250/month.
Every request scans the live website. No dependency on browser visits or crawl schedules.
Single REST API endpoint. Get results in JSON with one HTTP request.
No credit card required. 500 free requests per month.