What powers kotoba.ac.jp?
Last seen Oct 2026 · 40 technologies across 20 categories
Advertising
Analytics
Authentication
Blogs
CDN
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript libraries
Maps
Miscellaneous
Page builders
Performance
Programming languages
Security
Tag managers
UI frameworks
Web servers
WordPress plugins
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.54 / 10 · ranked #2,429,851 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 1.2 MB · 54 requests
- WordPress theme: kabufuji · all themes
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on GMO Internet (210.172.183.41)
- DNS: gmoserver.jp
- Email: gmoserver.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 13,637,949, 7 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| fujisan.kotoba.ac.jp | 22 |
| jp.kotoba.ac.jp | 18 |
| sp.kotoba.ac.jp | 8 |
| kotoba.ac.jp | 5 |
Full technology history →
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Recent changes
- dropped jQuery Migrate Jul 2026
- dropped Lightbox May 2026
- dropped WP-PageNavi May 2026
- detected Bootstrap Apr 2026
- detected Contact Form 7 Apr 2026
- detected core-js Apr 2026
- detected EWWW Image Optimizer Apr 2026
- detected GTranslate Apr 2026
- detected jQuery Migrate Apr 2026
- detected jsDelivr Apr 2026
- detected LazySizes Apr 2026
- detected Priority Hints Apr 2026
- detected reCAPTCHA Apr 2026
- detected Swiper Apr 2026
- detected WordPress Block Editor Apr 2026
- dropped Cloudflare Bot Management Mar 2026