What powers b4b.co.jp?
Last seen Jun 2026 · 19 technologies across 12 categories
Analytics
Google Analytics
since Dec 2025
CDN
Google Cloud CDN
since Jul 2025
jQuery CDN
since Jul 2025
jsDelivr
since Jul 2025
Unpkg
since Jul 2025
Databases
Firebase
since Jul 2025
Font scripts
Google Font API
since Jul 2025
Hosting
Xserver
since Jul 2025
IaaS
Google Cloud
since Jul 2025
JavaScript frameworks
JavaScript libraries
Miscellaneous
HTTP/3
since Jul 2025
Open Graph
since Jul 2025
Page builders
STUDIO
since Jul 2025
Programming languages
Node.js
since Jul 2025
Tag managers
Google Tag Manager
since Jul 2025
Audience
- 76% desktop
- 24% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.71 / 10 · ranked #4,926,920 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.8 s |
| INP | 50 ms |
| CLS | 0.15 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Google
- Weight: 22.7 MB · 122 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Priority Hints May 2026
- detected Lenis Apr 2026
- detected Priority Hints Feb 2026