What powers openwindowschool.org?
Last seen Jun 2026 · 23 technologies across 12 categories
Analytics
Google Analytics
since Jan 2019
CDN
Cloudflare
since Oct 2023
Font scripts
Google Font API
since Jan 2019
JavaScript frameworks
JavaScript libraries
HeadJS
since Jan 2019
Underscore.js
since Jan 2019
PaaS
Amazon Web Services
since Aug 2022
Security
Cloudflare Bot Management
since Oct 2023
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Aug 2022
UI frameworks
Video players
Web servers
Nginx
since Jan 2019
Webmail
Google Workspace
since Aug 2022
Audience
- 71% desktop
- 29% phone
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.07 / 10 · ranked #3,410,650 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: BunnyCDN
- Weight: 7.8 MB · 96 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Dec 2025
- dropped Cloudflare Bot Management Dec 2025
- detected Google Tag Manager Sep 2025