What powers 
tci.ac.jp?
Last seen Sep 2026 · 17 technologies across 12 categories
Analytics
JavaScript frameworks
JavaScript libraries
LMS
Moodle
since Sep 2022
Miscellaneous
Open Graph
since Sep 2022
Operating systems
CentOS
since Jan 2019
Programming languages
Tag managers
Google Tag Manager
since Jul 2022
Video players
Web server extensions
Web servers
Apache HTTP Server
since Jan 2019
Webmail
Google Workspace
since Aug 2022
Microsoft 365
since Aug 2022
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
- Oct 2026 * removed from robots.txt
- Oct 2026 robots.txt removed
- Sep 2026 robots.txt appeared
- Sep 2026 * added to robots.txt
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 52% phone
- 48% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.59 / 10 · ranked #388,788 of all domains
71 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 9.1 MB · 133 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Tokyo Christian University
- Founded: 1966
- Country: Japan
From Wikidata (CC0).
Infrastructure
- DNS: fureai.or.jp
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 800,552, 9 hosts
- Verified with: OpenAI
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| online.tci.ac.jp | 11 |
| www.tci.ac.jp | 9 |
| syllabus.tci.ac.jp | 4 |