What powers seabird-center.jp?
Last seen Aug 2026 · 4 technologies across 4 categories
Operating systems
CentOS
since Aug 2022
PaaS
Amazon Web Services
since Aug 2022
Web server extensions
Web servers
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Aug 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
2.96 / 10 · ranked #1,664,755 of all domains
17 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 275 ms |
| CLS | 0.5 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 0.2 MB · 16 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Full technology history →
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Recent changes
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025