What powers sumita-opt.co.jp?
Last seen May 2026 · 4 technologies across 4 categories
Analytics
Google Analytics
since Jan 2019
JavaScript libraries
Tag managers
Google Tag Manager
since Jan 2019
Web servers
Apache HTTP Server
since Jan 2019
Audience
- 82% desktop
- 18% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.69 / 10 · ranked #769,421 of all domains
34 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 0.9 MB · 23 requests
Homepage as crawled by the HTTP Archive, Jul 2026.