Rythm
Rythm is a bouncer for your Gmail & Outlook inbox. People you know get through. Everyone else pays a small cover charge. As low as $1.65/mo.
Estimated origin: United States
Added April 8, 2026
· Last analysed April 10, 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 10 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.
Rythm ships with the launch fundamentals in place, with complete legal pages, a thorough launch checklist, and fast page loads. What needs work: missing Content-Security-Policy and Strict-Transport-Security, tracking cookies set before any opt-in, and incomplete email security.
Launched on Product Hunt on April 8, 2026. The site is served through Cloudflare. Our crawler found 11 technologies on this site, covering analytics, APIs, CDN, and CSS frameworks. The stack includes Tailwind CSS, Cloudflare, and Cloudflare DNS.
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Tech Stack (11)
| CDN |
Cloudflare
(3)
|
| DNS |
Cloudflare DNS
|
| Protocol | HTTP/3 (2) |
| Business email |
Google Workspace
(2)
|
| Transactional email |
Resend
(2)
|
| API |
Wikimedia
|
| CSS framework |
Tailwind CSS
|
| Developer tools |
Vite
|
| Font |
Google Fonts
|
| Analytics |
Google Analytics
(2)
|
| SEO |
Google Search Console
|
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 | +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.