What powers dei.or.jp?
Last seen Oct 2026 · 24 technologies across 15 categories
Analytics
Google Analytics
since Apr 2019
Matomo Analytics
since Aug 2023
CDN
cdnjs
since Sep 2024
Cloudflare
since Sep 2024
CMS
WordPress
since Jun 2025
Databases
MySQL
since Jun 2025
Font scripts
Google Font API
since Sep 2019
Hosting panels
Plesk
since Sep 2019
JavaScript libraries
Marketing automation
Salesforce Marketing Cloud Account Engagement
since Dec 2022
Miscellaneous
Open Graph
since Jun 2025
RSS
since Jun 2025
Page builders
WordPress Block Editor
since Jun 2025
Programming languages
Security
HSTS
since Jun 2025
Tag managers
Google Tag Manager
since Aug 2023
UI frameworks
Webmail
Microsoft 365
since Nov 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not 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 robots.txt, all AI crawlers allowed
Audience
- 80% desktop
- 20% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.33 / 10 · ranked #182,773 of all domains
83 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Weight: 9.0 MB · 90 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Oracle Cloud (158.101.159.128)
- DNS: customer.ne.jp
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 595,133, 3 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.dei.or.jp | 15 |
| sustainability.dei.or.jp | 14 |