What powers 
wefan.jp?
Last seen Sep 2026 · 12 technologies across 10 categories
Analytics
Documentation
Zendesk
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
PaaS
Amazon Web Services
since Aug 2022
Programming languages
Ruby
since Jan 2019
Rich text editors
UI frameworks
Web frameworks
Ruby on Rails
since Jan 2019
Web servers
Nginx
since Jan 2019
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 64% phone
- 36% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.77 / 10 · ranked #731,438 of all domains
53 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| CLS | 0 |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Weight: 3.2 MB · 56 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Amazon Web Services (52.196.6.57)
- Email: sendgrid.net
- Email security: no SPF record, no DMARC record
- SSL: DigiCert, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 1,212,065
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted