PencilKit
The Chrome extension that turns any webpage into your personal notepad. Annotate, highlight, and type directly on top of content with a calm, Apple-inspired experience.
Added April 4, 2026
· Last analysed April 10, 2026 · via 
· 67% 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 10 April 2026; the live site may have changed since.
PencilKit is largely in shape, with a thorough launch checklist, fast page loads, and clean crawl signals. What needs work: missing several security headers, incomplete legal pages, and incomplete email security.
Launched on Product Hunt on April 4, 2026. The site is hosted on Vercel, with a domain registered 1 week before launch. The crawl picked up 8 technologies on this site, covering CSS frameworks, DNS providers, email forwarding, and frameworks. The stack includes Next.js, React, and Tailwind CSS.
For context, it's running the same core stack as 10,661 other launches.
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Tech Stack (8)
| DNS |
Cloudflare DNS
|
| Hosting |
Vercel
(3)
|
| Security | HSTS (2) |
| Email forwarding |
Cloudflare Email Routing
(2)
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Meta-framework |
Next.js
(5)
|
| SEO |
Google Search Console
|
Infrastructure
Email Security
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI iconography signals | +3 |
| AI stack signals | +10 |
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.