nihongojouzu.jp
Free, adaptive JLPT N2 prep: vocab, kanji, grammar, reading and listening in every exam format, a full N2 mock test, and spaced repetition. No account needed.
Estimated origin: Japan
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.
nihongojouzu.jp scores highly overall, with complete legal pages, a thorough launch checklist, and well-configured email security. Visible gaps: no Strict-Transport-Security.
Launched on Product Hunt on August 18, 2026. The site is hosted on Render and served through Cloudflare. Our crawler found 16 technologies on this site, covering analytics, baas, CDN, and CSS frameworks. The stack includes Next.js, React, and Tailwind CSS.
It's also on one of the most common stacks we track, shared by 156 launches and 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 (16) · Indie stack
| CDN |
Cloudflare
|
| DNS |
Cloudflare DNS
|
| Hosting |
Render
|
| Email forwarding |
Cloudflare Email Routing
(2)
|
| Transactional email |
Resend
|
| BaaS |
Supabase
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Meta-framework |
Next.js
(3)
|
| UI library |
Lucide Icons
|
| Analytics |
Cloudflare Web Analytics
|
Google Analytics
(3)
|
|
Microsoft Clarity
|
|
| Marketing |
TikTok Domain Verification
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
(2)
|
Infrastructure
Email Security
Storage (0)
Readiness Breakdown How?
Performance How?
Broken first-party requests (1), worth fixing
- 403 /
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 |
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.