CalcFleet
A growing fleet of free, accurate online calculators — each one also available as an API.
Estimated origin: Italy
Added July 8, 2026
· Last analysed July 8, 2026 · via 
· 73% 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 8 July 2026; the live site may have changed since.
CalcFleet scores highly overall, with complete legal pages, a thorough launch checklist, and clean crawl signals. Visible gaps: no Content-Security-Policy and incomplete email security.
Launched on Product Hunt on July 8, 2026. The site is hosted on Vercel and served through Cloudflare, with a domain registered 3 days before launch. Our crawler found 20 technologies on this site, covering advertising, affiliate, consent tooling, and security. The stack includes Google, Google Funding Choices, and Next.js.
It's also on one of the most common stacks we track, shared by 9,814 launches and more locked down than the typical Product Hunt launch.
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Tech Stack (20)
| CDN |
Cloudflare
|
| DNS |
Register.it
|
| Hosting |
Vercel
|
| Security |
Cloudflare Bot Management
|
| HSTS |
| Business email |
Register.it Mail
(2)
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| JavaScript library |
Zod
|
| Meta-framework |
Next.js
(5)
|
| Advertising |
Google Ads
(2)
|
Google AdSense
(3)
|
|
| Affiliate |
FlexOffers
|
Impact
|
|
| Analytics |
Google Analytics
(4)
|
| Consent |
Google
|
Google Funding Choices
(2)
|
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
(3)
|
| Directory |
Product Hunt
|
Infrastructure
Email Security
Storage (2)
| Name | Lifetime | Detected as |
|---|---|---|
| FCCDCF | 1y | Google Funding Choices |
| __cf_bm | < 1h | Cloudflare |
Readiness Breakdown How?
Performance How?
⚠ 1 images: 1 oversized
Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| Placeholder branding | +10 |
| 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.