Calculator Hub
Free online calculators — Salary, EMI, SIP, Crypto & Stock Tax, GST, Age, Percentage, Medical & Education Expense, Calorie aur Fitness — India rules ke hisab se bhi, sab ek hi jagah, bilkul free.
Estimated origin: India
Added August 18, 2026
· Last analysed August 18, 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 18 August 2026; the live site may have changed since.
Calculator Hub scores highly overall, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Main gaps: tracking cookies set before any opt-in and incomplete email security.
Launched on Product Hunt on August 18, 2026. The site is served through Cloudflare. The crawl picked up 9 technologies on this site, covering payments, affiliate, analytics, and CDN. The stack includes Admitad, Cashfree, and Cloudflare.
For context, it's more locked down than the typical Product Hunt launch.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (9)
| CDN |
Cloudflare
|
| Security | HSTS |
| Developer tools |
Vite
|
| JavaScript library |
React Router
|
| Affiliate | Admitad |
| Analytics |
Google Analytics
(5)
|
| Tag management |
Google Tag Manager
(3)
|
| Payments |
Cashfree
|
PayU India
|
Infrastructure
Email Security
Storage (7)
| Name | Lifetime | Detected as |
|---|---|---|
| _ga | 1y | Google Analytics |
| _ga_3D0K5K4DSC | 1y | Google Analytics |
| Key | Size | Detected as |
|---|---|---|
| chub_client_id | 36 B | - |
| chub_language | 2 B | - |
| chub_premium | 5 B | - |
| chub_ultra_premium | 5 B | - |
| Key | Size | Detected as |
|---|---|---|
| chub_revenue_journey | 36 B | - |
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 | +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.