What powers oceanopticsbook.info?
Last seen Jun 2026 · 9 technologies across 8 categories
Analytics
Google Analytics
since Apr 2019
CMS
Concrete CMS
since Jun 2020
JavaScript graphics
MathJax
since Jun 2020
JavaScript libraries
Miscellaneous
HTTP/3
since Nov 2024
Programming languages
UI frameworks
Web servers
LiteSpeed
since Nov 2024
Audience
- 75% desktop
- 25% phone
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.18 / 10 · ranked #3,138,954 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.7 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 2000 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 0.4 MB · 25 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| oceanopticsbook.info | 9 |
| www.oceanopticsbook.info | 9 |