Langevin
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langevinai.io
· Added June 25, 2026
· Last analysed June 25, 2026 · via 
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 25 June 2026; the live site may have changed since.
Langevin still has work before launch. Main gaps: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.
Launched on Product Hunt on June 25, 2026. The site is hosted on Amazon.com in the United States. The crawl picked up 15 technologies on this site, covering javascript library, package cdn, security, and auth. The stack includes Clerk, ApexCharts, and cdnjs.
For context, it's on one of the most common stacks we track, shared by 2,295 launches.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (15)
| CDN |
Cloudflare
|
| DNS |
Porkbun DNS
(2)
|
| Hosting |
Vercel
|
| Security |
Cloudflare Bot Management
|
| HSTS |
| Email forwarding |
Porkbun Email Forwarding
|
| Auth |
Clerk
(4)
|
| Developer tools |
SheetJS
|
| Font |
Google Fonts
|
| JavaScript library |
ApexCharts
|
| JSZip | |
Papa Parse
|
|
PDF.js
|
|
| Package CDN |
cdnjs
|
jsDelivr
|
Infrastructure
Email Security
Storage (6)
| Name | Lifetime | Detected as |
|---|---|---|
| _cfuvid | session | Cloudflare |
| __cf_bm | < 1h | Cloudflare |
| __client | 1y | Clerk |
| __client_uat | 1y | Clerk |
| __client_uat_hRWsOYED | 1y | Clerk |
| Key | Size | Detected as |
|---|---|---|
| __clerk_environment | 6 KB | Clerk |
Readiness Breakdown How?
Performance How?
⚠ 6 images: 2 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 |
|---|---|
| Placeholder branding | +10 |
| AI copy signals | +5 |
| AI onboarding signals | +5 |
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI iconography signals | +3 |
| AI code-structure signals | +5 |
| AI layout signals | +5 |
| Unfilled template placeholders | +10 |
| AI CSS signals | +15 |
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.