Calfy
Free Online Calculators & Tools
Added June 12, 2026
· Last analysed June 12, 2026 · via 
· also on PeerPush
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 June 2026; the live site may have changed since.
Calfy scores highly overall, with complete legal pages, a thorough launch checklist, and clean crawl signals. Main gaps: missing Content-Security-Policy and Strict-Transport-Security and incomplete email security.
Launched on Product Hunt on June 12, 2026. The site is hosted on IONOS and served through Cloudflare, with a domain registered 1 week before launch. We've detected 18 technologies on this site, covering advertising, analytics, wordpress plugin, and CDN. The stack includes Google Funding Choices, WordPress, and Autoptimize.
It's one of 39 launches on this exact stack and more locked down than the typical Product Hunt launch.
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Tech Stack (18)
| CDN |
Cloudflare
|
| DNS |
Cloudflare DNS
|
| Hosting |
IONOS
(2)
|
| Protocol | HTTP/3 |
| Server |
PHP
|
| Business email |
IONOS Email
(2)
|
| CMS |
WordPress
(2)
|
| Font |
Google Fonts
|
| WordPress plugin | Autoptimize (2) |
Site Kit by Google
|
| Advertising |
Google Ads
(2)
|
Google AdSense
(3)
|
|
| Google Publisher Tag | |
| Analytics |
Cloudflare Web Analytics
|
Google Analytics
(2)
|
|
| Consent |
Google Funding Choices
(2)
|
| SEO |
Yandex Domain Verification
|
| Tag management |
Google Tag Manager
(2)
|
Infrastructure
Email Security
Storage (3)
| Name | Lifetime | Detected as |
|---|---|---|
| FCCDCF | 1y | Google Funding Choices |
| _ga | 1y | Google Analytics |
| _ga_5ENR7Y1XY4 | 1y | Google Analytics |
Readiness Breakdown How?
Performance How?
⚠ 2 images: 1 oversized, 2 missing alt text
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 writing signals | +3 |
| AI iconography signals | +5 |
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.