What powers 
aki-katsu.co.jp?
Last seen Sep 2026 · 18 technologies across 11 categories
Analytics
CDN
Google Hosted Libraries
since Feb 2024
Documentation
Zendesk
since Aug 2022
Font scripts
Google Font API
since Apr 2020
Typekit
since Feb 2024
JavaScript frameworks
GSAP
since Nov 2021
JavaScript libraries
Maps
Google Maps
since Jun 2024
Miscellaneous
Open Graph
since Sep 2022
Reverse proxies
Envoy
since Jun 2024
Web servers
Nginx
since Apr 2020
Webmail
Apple iCloud Mail
since Jun 2024
Google Workspace
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 60% desktop
- 40% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.97 / 10 · ranked #248,951 of all domains
59 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 2.9 MB · 85 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Xserver (202.254.239.105)
- DNS: Muumuu Domain
- Email: Google Workspace
- Email security: no SPF record, DMARC monitor only
- SSL: CloudSecure Corporation, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 9,079,392, 5 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| seminar.aki-katsu.co.jp | 12 |
| aki-katsu.co.jp | 11 |