SmartPayCalc
Calculate monthly installment loan payments, reverse APR interest rates, and loan payoff schedules instantly. Free, 100% private & zero setup.
Added August 21, 2026
· Last analysed August 21, 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 21 August 2026; the live site may have changed since.
SmartPayCalc is partway there, with a thorough launch checklist and clean crawl signals. What needs work: missing several security headers, incomplete legal pages, and no email security records.
Launched on Product Hunt on August 21, 2026. The site is served through Cloudflare, with a domain registered 6 days before launch. The crawl picked up 10 technologies on this site, covering advertising, seo, analytics, and CDN. The stack includes Google Funding Choices, Bing Webmaster, and Cloudflare.
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Tech Stack (10)
| CDN |
Cloudflare
|
| DNS |
Cloudflare DNS
|
| Font |
Google Fonts
|
| Advertising |
Google Ads
|
Google AdSense
(4)
|
|
| Analytics |
Google Analytics
(5)
|
| Consent |
Google Funding Choices
|
| SEO |
Bing Webmaster
|
Google Search Console
(2)
|
|
| Tag management |
Google Tag Manager
(3)
|
Infrastructure
Email Security
Storage (3)
| Name | Lifetime | Detected as |
|---|---|---|
| _ga | 1y | Google Analytics |
| _ga_0ZRBRL71WB | 1y | Google Analytics |
| Key | Size | Detected as |
|---|---|---|
| google_auto_fc_cmp_setting | 3 B | Google Funding Choices |
Readiness Breakdown How?
Performance How?
⚠ 2 images: 2 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 |
|---|---|
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI iconography signals | +5 |
| AI code-structure signals | +5 |
| AI asset signals | +10 |
| Unfilled template placeholders | +15 |
| AI CSS signals | +15 |
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.