What powers ken-matsudaira.com?
Last seen Oct 2026 · 4 technologies across 4 categories
Hosting
Xserver
since Aug 2022
JavaScript libraries
Miscellaneous
SWFObject
since Apr 2019
Web servers
Nginx
since Apr 2019
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 89% phone
- 11% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.89 / 10 · ranked #1,789,162 of all domains
39 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 275 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 0.7 MB · 39 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Xserver (183.90.242.5)
- DNS: Xserver
- Email: ken-matsudaira.com
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 1,159,931, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted