What powers keio-arena.tokyo?
Last seen Jun 2026 · 9 technologies across 8 categories
Advertising
Twitter Ads
since May 2025
Analytics
Google Analytics
since May 2025
CDN
Cloudflare
since May 2025
jsDelivr
since May 2025
Hosting
Sakura Internet
since May 2025
JavaScript libraries
Security
Cloudflare Bot Management
since May 2025
Web servers
Nginx
since May 2025
Widgets
Twitter
since May 2025
Audience
- 82% phone
- 18% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.36 / 10 · ranked #1,052,760 of all domains
45 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 2.5 MB · 62 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025