What powers shiro-f.jp?
Last seen Sep 2026 · 14 technologies across 11 categories
Analytics
CMS
Databases
JavaScript libraries
Miscellaneous
Programming languages
UI frameworks
Web servers
Widgets
WordPress plugins
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 not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 87% phone
- 13% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.08 / 10 · ranked #520,005 of all domains
69 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 6.4 MB · 43 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Shiroishi Castle
- Founded: 1591
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on INFOSPHERE NTT PC Communications, Inc. (202.171.133.197)
- DNS: inf-com01.jp
- Email: nospamcloud.com
- Email security: SPF (soft fail), no DMARC record
- SSL: JPRS, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 763,278, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.shiro-f.jp | 13 |
| shiro-f.jp | 3 |
Full technology history →
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Recent changes
- dropped Priority Hints Dec 2025