PolySub
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Estimated origin: Sweden
Added June 18, 2026
· Last analysed June 18, 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 18 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.
PolySub is partway there, with complete legal pages and a thorough launch checklist. What needs work: missing several security headers, no robots.txt or sitemap, and incomplete email security.
Launched on Product Hunt on June 18, 2026. The site is hosted on Vercel, with a domain registered 3 months before launch. The crawl picked up 10 technologies on this site, covering baas, CSS frameworks, DNS providers, and email forwarding. The stack includes Next.js, React, and Tailwind CSS.
For context, it's running the same core stack as 14,963 other launches.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (10) · Indie stack
| DNS |
Cloudflare DNS
|
| Hosting |
Vercel
|
| Security | HSTS |
| Email forwarding |
Cloudflare Email Routing
(2)
|
| Transactional email |
Resend
|
| BaaS |
Firebase
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Meta-framework |
Next.js
(2)
|
| UI library |
shadcn/ui
|
Infrastructure
Email Security
Storage (2)
| Database | Version | Detected as |
|---|---|---|
| firebase-heartbeat-database | 1 | Firebase |
| firebaseLocalStorageDb | 1 | Firebase |
Readiness Breakdown How?
Performance How?
⚠ 1 images: 1 oversized, 1 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 writing signals | +5 |
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.