Prepilingo
Personal coach for ÖSD, ÖIF, Goethe-Institut, telc, TestDaF, and DTZ. Daily plans calibrated to your exam date and your weakest skill.
Estimated origin: Austria
Added July 6, 2026
· Last analysed July 6, 2026 · via 
· 56% 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 6 July 2026; the live site may have changed since.
Prepilingo has the basics covered well, with complete legal pages and clean crawl signals. Main gaps: missing several security headers and incomplete email security.
Launched on Product Hunt on July 6, 2026. The site is hosted on Vercel, with a domain registered 8 months before launch. Our crawler found 17 technologies on this site, covering analytics, ui library, AI builders, and consent tooling. The stack includes Google, Next.js, and React.
It's also on one of the most common stacks we track, shared by 9,452 launches.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (17)
| DNS |
Cloudflare DNS
|
| Hosting |
Vercel
|
| Security | HSTS |
| CSS framework |
Tailwind CSS
|
| Font |
Google Fonts
|
| Framework |
React
|
| Meta-framework |
Next.js
(5)
|
| UI library |
Lucide Icons
|
shadcn/ui
|
| Analytics |
Google Analytics
|
Vercel Analytics
medium
|
|
| Consent |
Google
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
(4)
|
| AI builder |
v0 by Vercel
(2)
|
Infrastructure
Email Security
Storage (1)
| Name | Lifetime | Detected as |
|---|---|---|
| NEXT_LOCALE | 1y | - |
Readiness Breakdown How?
Performance How?
⚠ 3 images: 3 oversized
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 CSS signals | +10 |
| AI onboarding signals | +5 |
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI stack signals | +10 |
| Recognised AI builder signature | +100 |
| 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.