21 Stealth
Monitor BTC, ETH, SOL, LTC, DOGE, TRX, USDT, USDC wallets anonymously. We store nothing. You own your data – encrypted and portable.
Estimated origin: United States
Added April 13, 2026
· Last analysed April 13, 2026 · via 
· 50% unique tagline
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 13 April 2026; the live site may have changed since.
21 Stealth ships with the basics, with a thorough launch checklist. Worth fixing first: missing several security headers, incomplete legal pages, and no sitemap.
Launched on Product Hunt on April 2, 2026. The site is hosted on IONOS, with a domain registered 1 week before launch. We've detected 7 technologies on this site, covering CSS frameworks, DNS providers, business email, and hosting. The stack includes Astro, Tailwind CSS, and Apache.
It's on a stack we've seen on only 2 launches.
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Tech Stack (7)
| Business email |
IONOS Email
|
| CSS framework |
Tailwind CSS
|
| Meta-framework |
Astro
(2)
|
| SEO |
Google Search Console
|
Infrastructure
Email Security
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI onboarding signals | +5 |
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI code-structure signals | +20 |
| AI CSS signals | +15 |
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.