What powers convention.or.jp?
Last seen Aug 2026 · 12 technologies across 8 categories
CDN
cdnjs
since Jan 2025
Cloudflare
since Jan 2025
Font scripts
Google Font API
since Jan 2025
JavaScript libraries
Miscellaneous
Open Graph
since Dec 2025
Operating systems
CentOS
since May 2024
Programming languages
Web server extensions
Web servers
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 74% phone
- 26% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.74 / 10 · ranked #286,464 of all domains
87 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 5.7 MB · 124 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on PROX Prox System Design Inc. (210.143.102.33)
- Email: as-server.net
- Email security: no SPF record, no DMARC record
- SSL: Sectigo, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 12,192,245, 2 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 YouTube Jan 2026
- detected FancyBox Dec 2025
- detected Open Graph Dec 2025
- detected Swiper Dec 2025