ClearPen
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Estimated origin: United States
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· Added June 28, 2026
· Last analysed June 28, 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 28 June 2026; the live site may have changed since.
ClearPen ships with the launch fundamentals in place, with complete legal pages, a thorough launch checklist, and clean crawl signals. Worth fixing first: no Content-Security-Policy and incomplete email security.
Launched on Product Hunt on June 28, 2026. The site is hosted on Amazon.com in the United States, with a domain registered 9 weeks before launch. The crawl picked up 16 technologies on this site, covering security, ui library, auth, and build tooling. The stack includes Clerk, Next.js, and React.
For context, it's a rare Rspack sighting, just 46 in our data and tighter on security headers than most Product Hunt launches.
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Tech Stack (16) · Indie stack
| CDN |
Cloudflare
|
| DNS |
Spaceship DNS
|
| Hosting |
Vercel
|
| Security |
Cloudflare Bot Management
|
| HSTS |
| Business email |
Google Workspace
(2)
|
| Transactional email |
Resend
|
| Auth |
Clerk
(4)
|
| Build tool |
Rspack
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| JavaScript library |
Motion
|
| Meta-framework |
Next.js
(5)
|
| UI library |
Lucide Icons
|
shadcn/ui
|
| SEO |
Google Search Console
|
Infrastructure
Email Security
Storage (8)
| Name | Lifetime | Detected as |
|---|---|---|
| cp_cur | 1y | - |
| cp_sid | 1y | - |
| _cfuvid | session | Cloudflare |
| __cf_bm | < 1h | Cloudflare |
| __client | 1y | Clerk |
| __client_uat | 1y | - |
| __client_uat_qPYJ7H9y | 1y | - |
| Key | Size | Detected as |
|---|---|---|
| __clerk_environment | 6.1 KB | Clerk |
Readiness Breakdown How?
Performance How?
⚠ 2 images: 2 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 copy signals | +5 |
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI stack signals | +10 |
| AI layout signals | +5 |
| Default scaffold favicon | +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.