What powers 
natsj.jp?
Last seen Aug 2026 · 12 technologies across 8 categories
JavaScript frameworks
JavaScript libraries
AOS
since Jan 2023
Miscellaneous
PaaS
Vercel
since Aug 2023
Performance
Priority Hints
since Aug 2023
Programming languages
Node.js
since Jan 2023
Security
HSTS
since Aug 2023
UI frameworks
Headless UI
since Aug 2023
Tailwind CSS
since Jan 2023
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.14 / 10 · ranked #485,502 of all domains
48 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- CDN: Vercel
- Weight: 2.6 MB · 82 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Amazon Web Services (66.33.60.194)
- DNS: Vercel
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 2,382,733, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted