What powers sofken.co.jp?
Last seen Sep 2026 · 21 technologies across 15 categories
Analytics
CDN
Unpkg
since Jul 2025
CMS
Databases
MySQL
since Jan 2019
Font scripts
Google Font API
since Aug 2019
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2023
RSS
since Dec 2022
Page builders
WordPress Block Editor
since Jul 2024
Performance
Priority Hints
since Apr 2026
Programming languages
PHP
since Jan 2019
Tag managers
Google Tag Manager
since Apr 2021
Web servers
Nginx
since Jan 2019
Webmail
Google Workspace
since Aug 2022
WordPress plugins
WordPress themes
Lightning
since Sep 2023
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
- 52% phone
- 48% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.84 / 10 · ranked #4,136,313 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 4.0 MB · 83 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Sakura Internet (112.78.125.53)
- DNS: Onamae.com
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 3,380,983, 3 hosts
DNS records as swept Sep 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- detected core-js Sep 2026
- dropped core-js Jul 2026
- detected Contact Form 7 Jun 2026
- detected Priority Hints Apr 2026