What powers f-members.co.jp?
Last seen Sep 2026 · 11 technologies across 8 categories
Analytics
Google Analytics
since Jan 2019
Font scripts
Google Font API
since Aug 2023
JavaScript libraries
Operating systems
Ubuntu
since Feb 2019
PaaS
Amazon Web Services
since Aug 2022
Tag managers
Google Tag Manager
since Mar 2021
Web servers
Webmail
Google Workspace
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 52% desktop
- 44% phone
- 3% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.82 / 10 · ranked #4,246,098 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 23.7 MB · 82 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Amazon Web Services (13.192.197.115)
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Amazon Trust Services, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 10,372,390
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted