What powers opencv.jp?
Last seen Jul 2026 · 9 technologies across 8 categories
CMS
Databases
MySQL
since Jun 2018
Font scripts
Hosting panels
Plesk
since Apr 2018
JavaScript libraries
Miscellaneous
RSS
since Dec 2022
SyntaxHighlighter
since Apr 2018
Programming languages
PHP
since Jun 2018
Web servers
Apache HTTP Server
since Apr 2018
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 100% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.94 / 10 · ranked #253,129 of all domains
78 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.4 s |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Subdomains
| Host | Techs |
|---|---|
| opencv.jp | 9 |
| www.opencv.jp | 7 |