CalcFi
Free financial calculators for mortgage, FIRE, taxes, retirement, debt & more. 500+ tools, no signup — get instant results.
Estimated origin: Estonia
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 12 April 2026; the live site may have changed since.
CalcFi scores highly overall, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Main gaps: tracking cookies set before any opt-in.
Launched on Hacker News on April 2, 2026. The site is hosted on Vercel, with a domain registered 1 week before launch. Our crawler found 16 technologies on this site, covering analytics, affiliate, baas, and CSS frameworks. The stack includes Next.js, React, and Tailwind CSS.
It's also on one of the most common stacks we track, shared by 10,662 launches and more locked down than the typical Hacker News launch.
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Tech Stack (16) · Indie stack
| DNS |
Cloudflare DNS
|
| Hosting |
Vercel
(2)
|
| Security | HSTS (2) |
| Business email |
Google Workspace
(2)
|
| Transactional email |
Resend
|
| BaaS |
Supabase
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Meta-framework |
Next.js
(3)
|
| Affiliate |
Impact
|
| Analytics |
Google Analytics
(3)
|
Microsoft Clarity
|
|
PostHog
(2)
|
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
(2)
|
| Directory |
SaaSHub
|
Infrastructure
Email Security
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI palette signals | +5 |
| AI writing 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.