What powers 
yobouigaku-tokyo.or.jp?
Last seen Sep 2026 · 10 technologies across 8 categories
Analytics
Google Analytics
since Jan 2019
Authentication
Facebook Login
since Jul 2021
CDN
jsDelivr
since May 2023
Font scripts
Google Font API
since Apr 2022
JavaScript libraries
Miscellaneous
Open Graph
since Oct 2025
UI frameworks
Bootstrap
since Jan 2019
Web servers
Apache HTTP Server
since Jan 2019
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 72% phone
- 28% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #359,092 of all domains
65 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 7.6 MB · 134 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Tokyo Health Service Association
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on FJCLOUD-EAST FUJITSU LIMITED (61.210.163.223)
- DNS: sendmail.ne.jp
- Email: no MX record returned, SPF names Google Workspace
- Email security: SPF (soft fail)
- SSL: GlobalSign, RSA 2048, expires Apr 2027
- Common Crawl link graph: rank 650,674, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.yobouigaku-tokyo.or.jp | 9 |
| yobouigaku-tokyo.or.jp | 9 |