What powers npc21.jp?
Last seen Jun 2026 · 26 technologies across 14 categories
Analytics
Google Analytics
since Jan 2019
CDN
cdnjs
since Jun 2024
Cloudflare
since Jun 2024
Google Hosted Libraries
since Jun 2024
jsDelivr
since Mar 2026
Unpkg
since Jun 2024
CMS
WordPress
since Feb 2022
Databases
MySQL
since Feb 2022
JavaScript libraries
Marketing automation
BowNow
since Jan 2023
Miscellaneous
Open Graph
since Sep 2022
Performance
Priority Hints
since Mar 2026
Programming languages
PHP
since Jan 2019
SEO
UI frameworks
Video players
YouTube
since Jul 2022
Web servers
Nginx
since Dec 2023
Webmail
Apple iCloud Mail
since Jan 2023
Audience
- 63% phone
- 37% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.37 / 10 · ranked #1,045,829 of all domains
30 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 13.7 MB · 154 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.npc21.jp | 21 |
| anniv70.npc21.jp | 16 |
Full technology history →
Report an incorrect detection
Recent changes
- detected jsDelivr Mar 2026
- detected Priority Hints Mar 2026
- detected Swiper Mar 2026
- dropped Moment.js Aug 2025