What powers kudan.house?
Last seen Oct 2026 · 9 technologies across 8 categories
Analytics
Google Analytics
since Jan 2019
CDN
jQuery CDN
since Feb 2022
Hosting
Xserver
since Jul 2023
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Webpack
since Jan 2019
Tag managers
Google Tag Manager
since Jan 2019
Web servers
Nginx
since Jul 2023
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
- 62% phone
- 38% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.39 / 10 · ranked #1,018,883 of all domains
49 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Weight: 4.1 MB · 32 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Kudan House
- Founded: 1927
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on Xserver (183.181.83.50)
- DNS: Xserver
- Email: kudan.house
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 2,835,729, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted