What powers 
jfkc.jp?
Last seen Aug 2026 · 14 technologies across 11 categories
CMS
Databases
MySQL
since Mar 2025
Font scripts
Google Font API
since Mar 2025
Twitter Emoji (Twemoji)
since Dec 2025
Hosting
Xserver
since Mar 2025
JavaScript libraries
Miscellaneous
Open Graph
since Mar 2025
RSS
since Mar 2025
Page builders
WordPress Block Editor
since Mar 2025
Programming languages
PHP
since Mar 2025
SEO
Web servers
Nginx
since Jan 2019
WordPress themes
Genesis theme
since Mar 2025
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
Open Page Rank
3.46 / 10 · ranked #934,803 of all domains
16 referring domains · OpenPageRank
Infrastructure
- Hosted on Xserver (162.43.122.123)
- DNS: Xserver
- Email: jfkc.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 176,704, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Twitter Emoji (Twemoji) Dec 2025