CalcProTool
Fast, free, accurate calculators for finance, health, math, and more.
Estimated origin: Finland
Added April 15, 2026
· Last analysed April 15, 2026 · via 
· 62% 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 15 April 2026; the live site may have changed since.
CalcProTool scores highly overall, with complete legal pages and clean crawl signals. Main gaps: missing Permissions-Policy and Content-Security-Policy, tracking cookies set before any opt-in, and no email security records.
Launched on Product Hunt on April 15, 2026. The site is hosted on Vercel, with a domain registered 1 week before launch. The crawl picked up 11 technologies on this site, covering analytics, CSS frameworks, DNS providers, and web fonts. The stack includes Next.js, React, and Tailwind CSS.
For context, it's on one of the most common stacks we track, shared by 10,672 launches and more locked down than the typical Product Hunt launch.
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Tech Stack (11)
| DNS |
Vercel DNS
|
| Hosting |
Vercel
(2)
|
| Security | HSTS (2) |
| CSS framework |
Tailwind CSS
|
| Font |
Google Fonts
|
| Framework |
React
|
| Meta-framework |
Next.js
(2)
|
| Analytics |
Google Analytics
(3)
|
Umami
(2)
|
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
|
Infrastructure
Email Security
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| Placeholder branding | +10 |
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI iconography signals | +5 |
| AI stack 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.