Capcat – Invisible open-source CAPTCHA alternative
This site was found by StackScope Discovery, our own
first-party launch detection. The tech stack below comes from that
discovery scan; the full analysis (screenshots, scores, page checks)
is added when the site is picked up by a launch platform.
Capcat is a hosted human-verification service: no Google, no tracking, no image puzzles. A SHA-256 proof of work runs silently in the browser — protect your forms and APIs in 5 minutes.
Developer Tools
StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 22 July 2026; the live site may have changed since.
Tech Stack (10)
Infrastructure
| CDN |
Cloudflare
|
| DNS |
Cloudflare DNS
|
| Protocol | HTTP/3 |
Email
| Email forwarding |
Cloudflare Email Routing
(2)
|
| Transactional email |
Resend
|
Build & Framework
| Captcha | Cap (CAPTCHA) medium |
| CSS framework |
Tailwind CSS
|
| Font |
Google Fonts
|
OnlineWebFonts
|
|
| UI library |
Lucide Icons
|
Security Headers (2/6)
✗
Permissions-Policy
experimental (check browser support)
–
X-XSS-Protection
deprecated (use Content-Security-Policy)
Something not look right? If a technology shown here is wrong or out of date, email
[email protected]
and we'll review it.