What powers kodai2-h.ed.jp?
Last seen Sep 2026 · 22 technologies across 15 categories
Analytics
Google Analytics
since Feb 2019
CDN
cdnjs
since Jun 2022
Cloudflare
since Jun 2022
CMS
WordPress
since Feb 2019
Databases
MySQL
since Feb 2019
Font scripts
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Slick
since Feb 2019
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Operating systems
CentOS
since Feb 2019
Programming languages
Security
reCAPTCHA
since Apr 2020
Tag managers
Google Tag Manager
since Sep 2020
Video players
YouTube
since Oct 2022
Web servers
WordPress plugins
WP-PageNavi
since Jun 2022
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 87% phone
- 13% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.79 / 10 · ranked #2,010,733 of all domains
16 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 9.8 MB · 143 requests
- Structured data: Microdata
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Sakura Internet (133.242.139.7)
- DNS: Sakura Internet
- Email: Sakura Internet
- Email security: SPF (soft fail), no DMARC record
- SSL: JPRS, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 14,141,324, 3 hosts
- Verified with: Adobe
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| fuchu.kodai2-h.ed.jp | 21 |
| www.kodai2-h.ed.jp | 15 |