What powers 
tokyo-seikei.or.jp?
Last seen Sep 2026 · 10 technologies across 8 categories
Analytics
CDN
jQuery CDN
since Feb 2022
Unpkg
since Nov 2025
Hosting panels
Plesk
since Jan 2019
JavaScript libraries
Maps
Google Maps
since Dec 2022
Tag managers
Google Tag Manager
since Jul 2025
Web servers
Nginx
since Aug 2020
Widgets
FlexSlider
since Jan 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
- 82% phone
- 18% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.45 / 10 · ranked #952,043 of all domains
32 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 5.9 MB · 122 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on IDCF IDC Frontier Inc. (210.152.150.18)
- DNS: tokyo-seikei.or.jp
- Email: tokyo-seikei.or.jp
- Email security: SPF (hard fail), no DMARC record
- SSL: GlobalSign, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 9,666,550
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.tokyo-seikei.or.jp | 9 |
| aga.tokyo-seikei.or.jp | 5 |