What powers 
ropc.jp?
Last seen Aug 2026 · 11 technologies across 8 categories
CMS
Databases
Font scripts
JavaScript libraries
Miscellaneous
Programming languages
SEO
Web servers
AI Crawlers
Blocks 1 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- GPTBot Blocked
The other 32 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
1 of 33 AI crawlers blocked
Audience
- 84% phone
- 16% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.93 / 10 · ranked #629,746 of all domains
85 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.9 s |
| CLS | 0 |
| TTFB | 1800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 12.1 MB · 40 requests
- WordPress theme: sango-theme · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on PRQ-AS PRQ VPN Network (88.80.28.203)
- DNS: j-dns.jp
- Email: ropc.jp
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 11,727,834
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped cdnjs Jan 2026
- dropped Cloudflare Jan 2026
- dropped Font Awesome Jan 2026
- dropped Google AdSense Jan 2026
- dropped Google Analytics Jan 2026
- dropped Google Hosted Libraries Jan 2026
- dropped reCAPTCHA Jan 2026