Penling
Penling App
penling.app
· Added June 17, 2026
· Last analysed June 17, 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 17 June 2026; the live site may have changed since.
Penling ships with the basics, with complete legal pages. What needs work: missing several security headers, no sitemap, and incomplete email security.
Launched on Product Hunt on June 17, 2026. The site is hosted on Amazon.com in the United States, with a domain registered 4 weeks before launch. We've detected 5 technologies on this site, covering CSS frameworks, DNS providers, transactional email, and frameworks. The stack includes Next.js, React, and Tailwind CSS.
It's running the same core stack as 2,692 other launches.
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Tech Stack (5)
| DNS |
AWS Route 53
|
| Transactional email |
Resend
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Meta-framework |
Next.js
(2)
|
Infrastructure
Email Security
Storage (0)
Readiness Breakdown How?
Performance How?
⚠ 2 images: 2 oversized, 2 without width/height, 2 missing alt text
Broken first-party requests (2), worth fixing
- 404 /terms?_rsc=ynvfz
- 404 /privacy?_rsc=ynvfz
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 |
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.