What powers neontetra.co.jp?
Last seen Aug 2026 · 6 technologies across 5 categories
CDN
Google Hosted Libraries
since Nov 2022
JavaScript libraries
Operating systems
CentOS
since Jan 2021
Security
HSTS
since Feb 2025
Web servers
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 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
3.26 / 10 · ranked #1,185,825 of all domains
27 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 0.3 MB · 14 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on DATAHOTEL-JP AS for DATAHOTEL, which is one of iDC in Japan (203.104.106.97)
- DNS: tezuka.co.jp
- Email: no MX record returned, SPF names Trend Micro Email Security
- Email security: SPF (soft fail)
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 781,113, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| neontetra.co.jp | 6 |
| www.neontetra.co.jp | 5 |