What powers 
yonkoh.co.jp?
Last seen Sep 2026 · 28 technologies across 18 categories
Advertising
Analytics
CDN
CMS
Databases
Font scripts
JavaScript libraries
Miscellaneous
PaaS
Page builders
Programming languages
Security
Tag managers
Video players
Web servers
Webmail
Widgets
WordPress plugins
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 Oct 2026.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 79% phone
- 21% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.75 / 10 · ranked #278,250 of all domains
63 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 3.3 MB · 89 requests
- WordPress theme: biz-vektor · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- 四国交通株式会社 (Shikoku Kotsu on Wikidata)
- Founded: 1957
- Country: Japan
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on Xserver (202.254.234.36)
- DNS: Amazon Route 53
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC monitor only
- SSL: CloudSecure Corporation, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 99,578, 2 hosts
- Verified with: Box, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| yonkoh.co.jp | 26 |
| www.yonkoh.co.jp | 9 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Google Tag Manager Jun 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025