INT21
We are building self-improving AI systems for the software beneath modern AI. Our first product generates and optimizes low-level GPU software, then proves its work with tests and benchmarks.
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 16 June 2026; the live site may have changed since.
INT21 is partway there, with a thorough launch checklist, fast page loads, and clean crawl signals. Worth fixing first: missing several security headers, incomplete legal pages, and incomplete email security.
Launched on Hacker News on June 16, 2026. The site is hosted on Cloudflare in the United States, with a domain registered 5 months before launch. The crawl picked up 5 technologies on this site, covering CDN, DNS providers, business email, and protocol. The stack includes Cloudflare, Cloudflare DNS, and Google Search Console.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (5)
| CDN |
Cloudflare
|
| DNS |
Cloudflare DNS
|
| Protocol | HTTP/3 |
| Business email |
Google Workspace
(3)
|
| SEO |
Google Search Console
|
Infrastructure
Email Security
Storage (0)
Readiness Breakdown How?
Performance How?
⚠ 3 images: 2 oversized, 1 without width/height, 3 missing alt text
Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI onboarding signals | +5 |
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.