Free Online Calculators
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Added August 12, 2026
· Last analysed August 12, 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 12 August 2026; the live site may have changed since.
Free Online Calculators ships with the launch fundamentals in place, with complete legal pages, a thorough launch checklist, and clean crawl signals. What needs work: no Permissions-Policy, tracking cookies set before any opt-in, and incomplete email security.
Launched on Product Hunt on August 12, 2026. The site is hosted on Hostinger, with a domain registered 6 weeks before launch. The crawl picked up 9 technologies on this site, covering servers, analytics, CSS frameworks, and DNS providers. The stack includes Bootstrap, Google Analytics, and Google Tag Manager.
For context, it's running the same core stack as 101 other launches and tighter on security headers than most Product Hunt launches.
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Tech Stack (9)
| DNS |
Hostinger DNS
|
| Hosting |
Hostinger
(2)
|
| Security | HSTS |
| Server |
LiteSpeed Web Server
|
PHP
|
| Business email |
Hostinger Email
|
| CSS framework |
Bootstrap
medium
|
| Analytics |
Google Analytics
(4)
|
| Tag management |
Google Tag Manager
(2)
|
Infrastructure
Email Security
Storage (2)
| Name | Lifetime | Detected as |
|---|---|---|
| _ga | 1y | Google Analytics |
| _ga_PMC34WHMB7 | 1y | Google Analytics |
Readiness Breakdown How?
Performance How?
⚠ 5 images: 4 oversized, 4 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 code-structure signals | +20 |
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.