Sudoku247Online
Play free sudoku online across four difficulty levels. Print puzzles, learn strategies, and challenge friends. No download or account required.
Added May 17, 2026
· Last analysed May 17, 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 17 May 2026; the live site may have changed since.
Sudoku247Online scores highly overall, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Visible gaps: incomplete email security.
Launched on Product Hunt on May 17, 2026. The site is hosted on OpenNext and served through AWS CloudFront, with a domain registered in 2024. Our crawler found 17 technologies on this site, covering auth, cloud, advertising, and analytics. The stack includes AWS Cognito, Google, and Google Sign-In.
It's also one of only 21 launches we've crawled running AWS Cognito and more locked down than the typical Product Hunt launch.
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Tech Stack (17) · Scale-up stack
| CDN |
AWS CloudFront
|
| Cloud |
Amazon Web Services
|
AWS API Gateway
|
|
| DNS |
Hostinger DNS
|
| Hosting |
OpenNext
|
| Security | HSTS |
| Auth |
AWS Cognito
|
Google Sign-In
|
|
| CSS framework |
Tailwind CSS
|
| Font |
Google Fonts
|
| Framework |
React
|
| Meta-framework |
Next.js
(3)
|
| Advertising |
Google Ads
|
| Analytics |
Google Analytics
(4)
|
| Consent |
Google
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
(2)
|
Infrastructure
Email Security
Storage (3)
| Name | Lifetime | Detected as |
|---|---|---|
| NEXT_LOCALE | session | Next.js |
| _ga | 1y | Google Analytics |
| _ga_6K4Z69KSNN | 1y | Google Analytics |
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI copy signals | +5 |
| AI writing 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.