What powers b4c.jp?
Last seen Aug 2026 · 17 technologies across 12 categories
Advertising
Google AdSense
since Aug 2018
Affiliate programs
Analytics
Google Analytics
since Aug 2018
Quantcast Measure
since Feb 2022
CDN
jsDelivr
since Jul 2020
CMS
WordPress
since Aug 2018
Databases
MySQL
since Aug 2018
Font scripts
Google Font API
since Aug 2018
Hosting
Xserver
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Programming languages
PHP
since Aug 2018
Web servers
Apache HTTP Server
since Apr 2018
Nginx
since Jan 2021
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Aug 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 75% phone
- 23% desktop
- 3% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.87 / 10 · ranked #3,978,021 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 0.7 MB · 17 requests
- WordPress theme: cocoon-master (child: cocoon-child-master) · all themes
- Structured data: JSON-LD, Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| b4c.jp | 16 |
| www.b4c.jp | 1 |
Full technology history →
Report an incorrect detection
Recent changes
- detected A8.net Jul 2026
- dropped cdnjs Jun 2026
- dropped Cloudflare Jun 2026
- dropped Google Hosted Libraries Jun 2026
- dropped Google Tag Manager Jun 2026
- dropped Lozad.js Jun 2026
- dropped Site Kit Jun 2026
- detected Site Kit Jan 2026