What powers 
code.or.jp?
Last seen Sep 2026 · 29 technologies across 20 categories
Advertising
Analytics
Authentication
Caching
CDN
CMS
Databases
Font scripts
JavaScript libraries
Miscellaneous
PaaS
Page builders
Performance
Programming languages
SEO
Tag managers
Web servers
Webmail
Widgets
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 Sep 2026.
- robots.txt found
- llms.txt found
- ai.txt not found
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 81% desktop
- 19% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.29 / 10 · ranked #208,215 of all domains
79 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 2.6 MB · 70 requests
- WordPress theme: code · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on Xserver (162.43.118.68)
- DNS: Amazon Route 53
- Email: no MX record returned
- Email security: DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 111,282, 7 hosts
- Verified with: Apple Business, Brave Creators, Google, Meta Business, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| code.or.jp | 19 |
| support.code.or.jp | 15 |
| csathome.code.or.jp | 3 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Apple iCloud Mail May 2026
- dropped Jetpack Mar 2026
- detected Twitter Emoji (Twemoji) Dec 2025