RangeFlow
RangeFlow is a React date range picker with a smooth drag slider, quick range tabs, and a popover calendar. Theme it with one CSS variable.
Added April 29, 2026
· Last analysed April 29, 2026 · via 
· 83% 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 April 2026; the live site may have changed since.
RangeFlow is largely in shape, with a thorough launch checklist and clean crawl signals. Main gaps: missing X-Frame-Options and Content-Security-Policy, incomplete legal pages, and incomplete email security.
Launched on Product Hunt on April 29, 2026. The site is served through Cloudflare, with a domain registered 3 weeks before launch. The crawl picked up 8 technologies on this site, covering analytics, CDN, CSS frameworks, and frameworks. The stack includes Next.js, React, and Tailwind CSS.
For context, it's on one of the most common stacks we track, shared by 3,880 launches and more locked down than the typical Product Hunt launch.
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Tech Stack (8)
| CDN |
Cloudflare
(3)
|
| Protocol | HTTP/3 (2) |
| Security | HSTS (2) |
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Meta-framework |
Next.js
|
| UI library |
shadcn/ui
|
| Analytics |
Umami
(2)
|
Infrastructure
Email Security
Storage (0)
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI writing signals | +5 |
| AI iconography signals | +3 |
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.