What powers u-d-c.jp?
Last seen Jun 2026 · 19 technologies across 15 categories
Analytics
Google Analytics
since Feb 2020
Microsoft Clarity
since Jan 2025
CMS
Databases
MySQL
since Jan 2025
Font scripts
Hosting
Sakura Internet
since Aug 2022
JavaScript graphics
JavaScript libraries
Miscellaneous
Open Graph
since Jan 2025
Performance
Intersection Observer
since Jan 2025
LazySizes
since Jan 2025
Programming languages
PHP
since Jan 2025
Security
Really Simple SSL & Security
since Jan 2025
SEO
Video players
YouTube
since Feb 2020
Web servers
Nginx
since Feb 2020
WordPress plugins
EWWW Image Optimizer
since Jan 2025
WP-Optimize
since Jan 2025
Audience
- 58% phone
- 42% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.17 / 10 · ranked #3,175,810 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 125 ms |
| CLS | 0.2 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 4.7 MB · 79 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
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Recent changes
- dropped Priority Hints Mar 2026