What powers kfi.ac.jp?
Last seen Jun 2026 · 18 technologies across 11 categories
Advertising
Analytics
Google Analytics
since Jan 2019
CDN
Cloudflare
since Mar 2025
Font scripts
Google Font API
since Nov 2021
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
PWA
since Apr 2025
Security
Cloudflare Bot Management
since Mar 2025
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Jan 2019
Video players
YouTube
since Jan 2019
Web servers
Nginx
since Apr 2022
Widgets
Twitter
since Jan 2019
Audience
- 86% phone
- 14% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.20 / 10 · ranked #1,267,780 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 9.0 MB · 143 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- detected Google Font API Feb 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025