What powers 
sobajima.jp?
Last seen Oct 2026 · 9 technologies across 8 categories
CDN
jQuery CDN
since Jul 2025
CMS
WordPress
since Aug 2022
Databases
MySQL
since Aug 2022
Hosting
Xserver
since Mar 2024
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Programming languages
PHP
since Aug 2022
Web servers
Nginx
since Mar 2024
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 not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 81% desktop
- 19% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.47 / 10 · ranked #929,208 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 50 ms |
| CLS | 0.1 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 16.1 MB · 77 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Xserver (162.43.101.140)
- DNS: Xserver
- Email: sobajima.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 9,431,534, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted