Playground
Fabraix Playground - Test your prompt injection skills against AI agents
Added July 13, 2026
· Last analysed July 13, 2026 · via 
· also on Hacker News
· 71% 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 July 2026; the live site may have changed since.
Playground is missing several launch fundamentals. Visible gaps: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.
Launched on Product Hunt on July 13, 2026. The site is hosted on Google Cloud, with a domain registered in 2025. Our crawler found 5 technologies on this site, covering developer tools, web fonts, hosting, and javascript library. The stack includes Google Cloud, Google Fonts, and Lucide Icons.
It's also on one of the most common stacks we track, shared by 202 launches.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (5)
| Hosting |
Google Cloud
(2)
|
| Developer tools |
Vite
|
| Font |
Google Fonts
|
| JavaScript library |
React Router
|
| UI library |
Lucide Icons
|
Infrastructure
Email Security
Storage (1)
| Key | Size | Detected as |
|---|---|---|
| pg_variant | 40 B | - |
Readiness Breakdown How?
Performance How?
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 palette signals | +5 |
| AI typography 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.