What powers numbuzin.jp?
Last seen Aug 2026 · 15 technologies across 9 categories
Analytics
Google Analytics
since May 2021
CDN
Google Hosted Libraries
since Feb 2022
Ecommerce
Cafe24
since Jun 2021
Cart Functionality
since Jun 2021
Font scripts
Google Font API
since May 2021
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since May 2021
Web servers
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Audience
- 100% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.86 / 10 · ranked #689,159 of all domains
52 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 6.8 MB · 109 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Korea Telecom (183.111.139.236)
- DNS: Cafe24
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 10,592,340, 3 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Sentry Nov 2025