What powers rockbros.jp?
Last seen Sep 2026 · 22 technologies across 14 categories
Analytics
CDN
Ecommerce
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
PaaS
Payment processors
Performance
Security
Tag managers
Web servers
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 Oct 2026. A recent check saw a policy file missing; awaiting confirmation.
- robots.txt found
- llms.txt found
- llms-full.txt found
- ai.txt not found
- Sep 2026 llms.txt appeared
- Sep 2026 llms-full.txt appeared
- Sep 2026 robots.txt appeared
- Sep 2026 * added to robots.txt
AI Crawlers
No AI crawlers blocked
Standards: llms.txt, llms-full.txt
Audience
- 60% phone
- 35% desktop
- 4% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.02 / 10 · ranked #1,556,844 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Cloudflare
- Weight: 15.7 MB · 287 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Cloudflare (23.227.38.65)
- DNS: Muumuu Domain
- Email: muumuu-mail.com
- Email security: SPF (soft fail), DMARC reject, BIMI
- SSL: Google Trust Services, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 2,303,366, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| rockbros.jp | 18 |
| biz.rockbros.jp | 10 |