What powers 
kaiseiken.or.jp?
Last seen Sep 2026 · 4 technologies across 4 categories
Analytics
Google Analytics
since Jan 2019
Editors
DreamWeaver
since Jan 2019
JavaScript frameworks
Web servers
Apache HTTP Server
since Jan 2019
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
- 53% phone
- 47% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.71 / 10 · ranked #760,028 of all domains
39 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| INP | 225 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 1.0 MB · 50 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Marine Ecology Research Institute
- Founded: 1975
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on AICS Otsuka Corp. (27.0.40.115)
- DNS: alpha-prm.jp
- Email: alpha-prm.jp
- Email security: no SPF record, no DMARC record
- SSL: Cybertrust Japan, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 1,196,338, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted