SpeedCalcs — 300 Free Calculators
Unlock free tools for success: calculators, planners, SEO optimizers & more to grow your retail business.
Added April 19, 2026
· Last analysed April 19, 2026 · via 
· 71% unique tagline
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 19 April 2026; the live site may have changed since.
SpeedCalcs — 300 Free Calculators has the basics covered well, with a thorough launch checklist, well-configured email security, and clean crawl signals. Worth fixing first: missing several security headers and incomplete legal pages.
Launched on Product Hunt on April 18, 2026. The site is hosted on Google LLC in the United States, with a domain registered 4 days before launch. Our crawler found 16 technologies on this site, covering advertising, package cdn, affiliate, and analytics. The stack includes Blogger, cdnjs, and Facebook Pixel.
It's also one of 54 launches on this exact stack.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (16)
| DNS |
GoDaddy DNS
|
| Business email |
Zoho Mail
(3)
|
| CMS |
Blogger
(3)
|
| Font |
Google Fonts
|
| Icon font |
Font Awesome
|
| JavaScript library |
jQuery
|
| Package CDN |
cdnjs
|
Google Hosted Libraries
|
| Advertising |
Facebook Pixel
|
Google Ads
|
|
Google AdSense
(3)
|
|
Monetag
|
|
Pinterest
|
|
| Affiliate |
Impact
|
| Analytics |
Google Analytics
|
| SaaS |
Zoho
|
Infrastructure
Email Security
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI writing signals | +3 |
| AI code-structure 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.