What powers opto.co.jp?
Last seen Jun 2026 · 14 technologies across 9 categories
Analytics
CDN
Amazon CloudFront
since Mar 2025
JavaScript libraries
Marketing automation
BowNow
since Feb 2022
PaaS
Amazon Web Services
since Mar 2025
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Jan 2019
Web servers
Apache HTTP Server
since Jan 2019
Webmail
Microsoft 365
since Aug 2022
Audience
- 87% desktop
- 13% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.46 / 10 · ranked #939,833 of all domains
29 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Amazon CloudFront
- Weight: 4.3 MB · 129 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Moment.js Aug 2025