What powers tis.ac.jp?
Last seen Aug 2026 · 20 technologies across 13 categories
Analytics
Statcounter
since Aug 2018
CMS
Databases
MySQL
since Aug 2018
Font Scripts
JavaScript Frameworks
JavaScript libraries
OWL Carousel
since Jun 2021
Miscellaneous
Performance
Priority Hints
since Aug 2023
Programming languages
PHP
since Aug 2018
UI frameworks
Animate.css
since Mar 2022
Web servers
LiteSpeed
since Jul 2024
Webmail
Google Workspace
since Aug 2022
WordPress plugins
Jetpack Boost
since Jun 2023
WordPress Super Cache
since Feb 2023
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 65% desktop
- 35% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.07 / 10 · ranked #1,475,528 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 25 ms |
| CLS | 0.1 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- Weight: 1.9 MB · 19 requests
- WordPress theme: kadence · all themes
- Structured data: Microdata
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Tsukuba International School
- Founded: 1992
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on WHG-CAN (192.250.237.60)
- DNS: doteasy.com
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 11,272,463, 5 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Twitter Emoji (Twemoji) Dec 2025