CalcPenny
Free, fast financial calculators for loans, savings, debt payoff, investing and retirement. No sign-up, instant results, works on any device — make every penny count.
calcpenny.com
· Added June 26, 2026
· Last analysed June 26, 2026 · via 
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 26 June 2026; the live site may have changed since.
CalcPenny looks production-ready overall, with complete legal pages, a thorough launch checklist, and clean crawl signals. Visible gaps: missing several security headers and incomplete email security.
Launched on Product Hunt on June 26, 2026. The site is hosted on Cloudflare in the United States, with a domain registered 2 days before launch. We've detected 13 technologies on this site, covering advertising, analytics, CDN, and consent tooling. The stack includes Astro, Google Funding Choices, and Cloudflare.
It's on one of the most common stacks we track, shared by 165 launches.
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Tech Stack (13)
| CDN |
Cloudflare
|
| DNS |
Cloudflare DNS
|
| Email forwarding |
Cloudflare Email Routing
(2)
|
| Font |
Google Fonts
|
| Meta-framework |
Astro
|
| Advertising |
Google Ads
|
Google AdSense
(3)
|
|
| Analytics |
Cloudflare Web Analytics
(2)
|
Google Analytics
(4)
|
|
| Consent |
Google Funding Choices
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
medium
|
| Directory |
Fazier
|
Infrastructure
Email Security
Storage (3)
| Name | Lifetime | Detected as |
|---|---|---|
| _ga | 1y | Google Analytics |
| _ga_6KR42JHM8L | 1y | Google Analytics |
| Key | Size | Detected as |
|---|---|---|
| google_auto_fc_cmp_setting | 3 B | Google Funding Choices |
Readiness Breakdown How?
Performance How?
⚠ 1 images: 1 without width/height
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 |
|---|---|
| AI palette signals | +5 |
| AI writing 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.