What powers krk-kumagai.co.jp?
Last seen Aug 2026 · 12 technologies across 8 categories
Analytics
Umami
since Jan 2025
CDN
Amazon CloudFront
since Sep 2024
JavaScript libraries
Marketing automation
BowNow
since Jul 2022
PaaS
Amazon Web Services
since Sep 2024
Security
HSTS
since Oct 2022
Tag managers
Google Tag Manager
since Apr 2023
Web servers
Apache HTTP Server
since Jul 2022
AI Crawlers
robots.txt could not be read at the last check (Aug 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.98 / 10 · ranked #12,972,796 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| CLS | 0 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- CDN: Amazon CloudFront
- Weight: 2.8 MB · 74 requests
Homepage as crawled by the HTTP Archive, Sep 2026.