Sentinel
Sentinel detects VPNs, proxies, antidetect browsers, and AI bots in under 40ms. Free API with device intelligence and residential proxy detection built in.
Estimated origin: United Kingdom
Added April 12, 2026
· Last analysed April 12, 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 12 April 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.
Sentinel ships with the launch fundamentals in place, with complete legal pages, a complete set of security headers, and a thorough launch checklist.
Launched on Product Hunt on April 12, 2026. The site is hosted on Railway and served through Cloudflare, with a domain registered 5 weeks before launch. Our crawler found 20 technologies on this site, covering auth, fraud prevention, advertising, and analytics. The stack includes Google OAuth, Google Sign-In, and Cloudflare.
It's also running the same core stack as 672 other launches and tighter on security headers than most Product Hunt launches.
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Tech Stack (20) · Indie stack
| CDN |
Cloudflare
(3)
|
| DNS |
Cloudflare DNS
|
| Hosting |
Railway
(2)
|
| Protocol | HTTP/3 (2) |
| Security | HSTS (2) |
| Business email |
Proton Mail
(3)
|
| Transactional email |
Resend
|
| API |
FlagCDN
|
| Auth |
Google OAuth
|
Google Sign-In
|
|
| Font |
Google Fonts
|
| Media |
Unsplash
|
| Advertising |
Google Ads
(2)
|
| Analytics |
Google Analytics
(2)
|
| SEO |
Google Search Console
|
| Social |
Google Search
|
| Tag management |
Google Tag Manager
|
| Fraud prevention |
FingerprintJS
|
| Spur |
| Backend framework |
Express
(2)
|
Infrastructure
Email Security
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI onboarding signals | +5 |
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI code-structure signals | +5 |
| 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.