What powers yamanote-j.org?
Last seen Aug 2026 · 13 technologies across 10 categories
Analytics
CDN
CMS
Databases
JavaScript libraries
PaaS
Programming languages
Security
Web servers
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 65% phone
- 35% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.76 / 10 · ranked #2,073,362 of all domains
30 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 6.5 MB · 93 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on IDCF IDC Frontier Inc. (164.46.95.251)
- DNS: Amazon Route 53
- Email: no MX record returned
- Email security: SPF (soft fail)
- SSL: DigiCert, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 2,918,653, 3 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted