What powers shiramazukaiseimaru.com?
Last seen Sep 2026 · 14 technologies across 12 categories
Analytics
CMS
Databases
Font scripts
Hosting
JavaScript libraries
Miscellaneous
Performance
Programming languages
SEO
Web servers
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 Sep 2026.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 86% phone
- 14% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.82 / 10 · ranked #16,004,081 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 1.1 MB · 32 requests
- WordPress theme: twentythirteen (child: kaiseimaru) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- 釣り船 海正丸
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Sakura Internet (112.78.112.102)
- Email: shiramazukaiseimaru.com
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 34,266,291
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Apache HTTP Server Apr 2026
- dropped Google Font API Apr 2026
- detected Nginx Mar 2026
- detected Priority Hints Mar 2026
- detected Sakura Internet Mar 2026