CrabPDF
Edit PDFs locally in your browser. No uploads, no backend, and after the site is loaded you can even turn off Wi-Fi.
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 27 April 2026; the live site may have changed since.
CrabPDF is partway there, with a thorough launch checklist, fast page loads, and clean crawl signals. Main gaps: missing several security headers, incomplete legal pages, and incomplete email security.
Launched on Hacker News on April 26, 2026. The site is served through Cloudflare, with a domain registered 2 days before launch. The crawl picked up 8 technologies on this site, covering analytics, CDN, developer tools, and DNS providers. The stack includes Cloudflare, Cloudflare DNS, and Cloudflare Email Routing.
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Tech Stack (8)
| CDN |
Cloudflare
(3)
|
| DNS |
Cloudflare DNS
|
| Protocol | HTTP/3 (2) |
| Email forwarding |
Cloudflare Email Routing
(2)
|
| Analytics |
Cloudflare Web Analytics
|
| SEO |
Google Search Console
|
Infrastructure
Email Security
Storage (0)
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI writing signals | +3 |
This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.