What powers 
lutra.jp?
Last seen Sep 2026 · 17 technologies across 12 categories
Analytics
Google Analytics
since Jul 2025
CMS
Databases
MySQL
since Jul 2025
Font scripts
Google Font API
since Jul 2025
Twitter Emoji (Twemoji)
since Dec 2025
Hosting
Xserver
since Jul 2025
JavaScript libraries
Miscellaneous
RSS
since Jul 2025
Page builders
WordPress Block Editor
since Jul 2025
Performance
Priority Hints
since Jul 2025
Programming languages
PHP
since Jul 2025
Web servers
Apache HTTP Server
since Dec 2022
Nginx
since Jul 2025
WordPress themes
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Open Page Rank
3.43 / 10 · ranked #970,789 of all domains
19 referring domains · OpenPageRank
Organisation
- Shikoku Institute of Natural History
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on Xserver (202.233.67.145)
- DNS: Xserver
- Email: lutra.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 7,821,939, 2 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| lutra.jp | 16 |
| www.lutra.jp | 1 |