What powers yakura-katsuo.jp?
Last seen Aug 2026 · 22 technologies across 15 categories
Analytics
Google Analytics
since Jul 2019
CDN
jQuery CDN
since Jul 2025
CMS
WordPress
since Jul 2019
Databases
MySQL
since Jul 2019
Hosting
Xserver
since Jul 2025
JavaScript libraries
Slick
since Jul 2025
Maps
Google Maps
since Jul 2025
Miscellaneous
Open Graph
since Sep 2022
Programming languages
PHP
since Jul 2019
Security
reCAPTCHA
since Sep 2020
Tag managers
Google Tag Manager
since Jul 2025
UI frameworks
Animate.css
since Jul 2025
Video players
YouTube
since Jul 2025
Web servers
Nginx
since Jul 2019
WordPress plugins
TablePress
since Aug 2022
WP-PageNavi
since Aug 2022
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.87 / 10 · ranked #672,628 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 12.6 MB · 189 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Xserver (85.131.207.128)
- DNS: Xserver
- Email: no MX record returned, SPF names Xserver
- Email security: SPF (soft fail), DMARC reject
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 1,148,123, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted