What powers jkj.co.jp?
Last seen Aug 2026 · 22 technologies across 14 categories
CDN
jsDelivr
since Aug 2022
CMS
Databases
MySQL
since Aug 2022
Font scripts
Google Font API
since Aug 2022
JavaScript graphics
JavaScript libraries
Marketing automation
Salesforce Marketing Cloud Account Engagement
since Dec 2022
Miscellaneous
RSS
since Dec 2022
Page builders
wpBakery
since Aug 2022
Programming languages
Security
Really Simple SSL & Security
since Apr 2024
reCAPTCHA
since Nov 2024
UI frameworks
Bootstrap
since Aug 2022
Web servers
Apache HTTP Server
since Aug 2022
WordPress plugins
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 Aug 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 59% desktop
- 41% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.29 / 10 · ranked #2,911,215 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.1 s |
| CLS | 0 |
| TTFB | 3400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 6.0 MB · 63 requests
Homepage as crawled by the HTTP Archive, Sep 2026.