ClearPen
Rewrite AI text into natural, undetectable writing. Free forever plan. No credit card.
Estimated origin: United States
Added June 28, 2026
· Last analysed June 28, 2026 · via 
StackScope records what new websites are built with, the week they launch. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We crawled this one for its tech stack and scored 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.
Every technology below links to its own page: which other new sites launched with it. Vendors and agencies watch those pages with Stackdar and hear about new adopters the week they ship, from £15 a month.
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 Vercel and served through Cloudflare, with a domain registered 9 weeks before launch. The crawl picked up 16 technologies on this site, covering security, ui library, auth, and CDN. The stack includes Clerk, Next.js, and React.
For context, it's running the same core stack as 15,031 other launches 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)
|
| CSS framework |
Tailwind CSS
|
| Developer tools |
Rspack
|
| 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 | Clerk |
| __client_uat_qPYJ7H9y | 1y | Clerk |
| 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.