Free Online Calculators
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Added June 19, 2026
· Last analysed June 19, 2026 · via 
StackScope records what new websites are built with, the week they launch. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We crawled this one for its tech stack and scored it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 19 June 2026; the live site may have changed since.
Every technology below links to its own page: which other new sites launched with it. Vendors and agencies watch those pages with Stackdar and hear about new adopters the week they ship, from £15 a month.
Free Online Calculators is partway there, with a thorough launch checklist and clean crawl signals. Worth fixing first: missing several security headers, incomplete legal pages, and incomplete email security.
Launched on Product Hunt on June 19, 2026. The site is hosted on Hostinger, with a domain registered 3 months before launch. The crawl picked up 12 technologies on this site, covering advertising, CMS, consent tooling, and DNS providers. The stack includes Google, WordPress, and Google AdSense.
For context, it's running the same core stack as 1,601 other launches.
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Tech Stack (12)
| DNS |
Hostinger DNS
|
| Hosting |
Hostinger
(2)
|
| Protocol | HTTP/3 |
| Server |
PHP
|
| Business email |
Hostinger Email
|
| CMS |
WordPress
(2)
|
| Font |
Google Fonts
|
| WordPress plugin |
Site Kit by Google
|
| Advertising |
Google AdSense
|
| Consent |
Google
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
|
Infrastructure
Email Security
Storage (0)
Readiness Breakdown How?
Performance How?
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 iconography signals | +3 |
| AI scaffolding signals | +8 |
| Unfilled template placeholders | +10 |
| 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.