RetentionLens
Survival analysis, churn drivers, cohorts, and revenue dynamics for SaaS teams. Connect Stripe and see results in minutes.
Estimated origin: Norway
Added June 29, 2026
· Last analysed June 29, 2026 · via 
· 82% 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 29 June 2026; the live site may have changed since.
RetentionLens has the basics covered well, with complete legal pages, a thorough launch checklist, and clean crawl signals. Visible gaps: missing several security headers and incomplete email security.
Launched on Product Hunt on June 29, 2026. The site is hosted on Vercel, with a domain registered 10 months before launch. Our crawler found 14 technologies on this site, covering transactional email, ui library, auth, and CSS frameworks. The stack includes Auth.js, Next.js, and React.
It's also on one of the most common stacks we track, shared by 8,807 launches.
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Tech Stack (14) · Indie stack
| DNS |
Porkbun DNS
(2)
|
| Hosting |
Vercel
|
| Security | HSTS |
| Email forwarding |
Porkbun Email Forwarding
|
| Transactional email |
Amazon SES
|
Resend
|
| Auth |
Auth.js
(2)
|
| CSS framework |
Tailwind CSS
|
| Font |
Google Fonts
|
| Framework |
React
|
| Meta-framework |
Next.js
(4)
|
| UI library |
Lucide Icons
|
shadcn/ui
|
| SEO |
Google Search Console
|
Infrastructure
Email Security
Storage (3)
| Name | Lifetime | Detected as |
|---|---|---|
| __Host-next-auth.csrf-token | session | - |
| __Secure-next-auth.callback-url | session | Auth.js |
| Key | Size | Detected as |
|---|---|---|
| nextauth.message | 74 B | Auth.js |
Readiness Breakdown How?
Performance How?
⚠ 6 images: 6 oversized, 6 without width/height
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.