What powers 
centermobile.co.jp?
Last seen Oct 2026 · 33 technologies across 16 categories
Advertising
Analytics
CDN
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating systems
PaaS
Programming languages
Tag managers
Video players
Web servers
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Nov 2026 *: Allowed (was Restricted)
- Oct 2026 *: Restricted (was Allowed)
- Oct 2026 *: Allowed (was Restricted)
- Oct 2026 *: Restricted (was Allowed)
- Sep 2026 *: Allowed (was Restricted)
- Aug 2026 robots.txt appeared
AI Crawlers
No AI crawlers blocked
Audience
- 68% phone
- 32% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.51 / 10 · ranked #881,249 of all domains
17 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Japanese
- CDN: Amazon CloudFront
- Weight: 15.8 MB · 117 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- 株式会社センターモバイル
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Amazon Web Services (99.84.237.47)
- DNS: Amazon Route 53
- Email: onamae.ne.jp
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Amazon Trust Services, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 15,485,582, 4 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| centermobile.co.jp | 18 |
| registration.centermobile.co.jp | 16 |
| sim.centermobile.co.jp | 16 |
| hakaku.centermobile.co.jp | 12 |
Full technology history →
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Recent changes
- detected Debian Oct 2026
- detected Twitter Emoji (Twemoji) Oct 2026
- detected theTradeDesk Sep 2026
- detected React Feb 2026
- detected React Router Feb 2026