What powers optics4kids.org?
Last seen Jun 2026 · 14 technologies across 11 categories
Analytics
Google Analytics
since Jun 2018
CDN
jsDelivr
since Dec 2021
Font scripts
JavaScript libraries
Miscellaneous
Operating systems
Windows Server
since Jun 2018
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Feb 2021
UI frameworks
Web frameworks
Microsoft ASP.NET
since Apr 2018
Web servers
Audience
- 59% desktop
- 36% phone
- 5% tablet
New Zealand
United States
India
United Kingdom
Canada
Australia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.98 / 10 · ranked #583,040 of all domains
73 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 5.3 MB · 26 requests
Homepage as crawled by the HTTP Archive, Jul 2026.