What powers bfr-trainers.jp?
Last seen Jun 2026 · 13 technologies across 8 categories
Analytics
Google Analytics
since Jan 2019
Microsoft Clarity
since Aug 2023
Font scripts
Google Font API
since Aug 2023
IaaS
Google Cloud
since Aug 2023
JavaScript libraries
Maps
Google Maps
since Feb 2026
Miscellaneous
HTTP/3
since Aug 2023
Open Graph
since Sep 2022
Performance
Google Cloud Trace
since Feb 2026
Priority Hints
since Jun 2026
Tag managers
Google Tag Manager
since Jan 2019
Audience
- 62% phone
- 38% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.69 / 10 · ranked #2,179,665 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 2500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Google
- Weight: 3.1 MB · 113 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected Priority Hints Jun 2026
- dropped Firebase Mar 2026
- dropped Google Cloud CDN Mar 2026
- dropped Node.js Mar 2026
- dropped Nuxt.js Mar 2026
- dropped STUDIO Mar 2026
- dropped Vue.js Mar 2026
- detected Google Cloud Trace Feb 2026
- detected Google Maps Feb 2026