Doudou-chinese
Show HN: I built a Chinese learning app that teaches through sentence patterns
Estimated origin: United States
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 29 April 2026; the live site may have changed since.
Doudou-chinese covers some of the launch checklist, with complete legal pages. Visible gaps: missing Permissions-Policy and Content-Security-Policy, no robots.txt or sitemap, and incomplete email security.
Launched on Hacker News on April 29, 2026. The site is hosted on DigitalOcean in the United States, with a domain registered 5 months before launch. Our crawler found 7 technologies on this site, covering DNS providers, business email, email marketing, and web fonts. The stack includes DigitalOcean DNS, Google Fonts, and HSTS.
It's also more locked down than the typical Hacker News launch.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (7)
| DNS |
DigitalOcean DNS
|
| Security | HSTS (2) |
| Server |
nginx
(2)
|
| Business email |
PrivateEmail
(2)
|
| Email marketing |
Mailchimp
|
| Font |
Google Fonts
|
| Package CDN |
unpkg
|
Infrastructure
Email Security
Storage (0)
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI layout 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.