What powers ibew21.org?
Last seen Jun 2026 · 17 technologies across 11 categories
CDN
Sendgrid
since Aug 2022
Font scripts
Google Font API
since Mar 2024
JavaScript frameworks
RequireJS
since Jul 2019
JavaScript libraries
Operating systems
Windows Server
since Jul 2019
UI frameworks
W3.CSS
since Mar 2024
Video players
YouTube
since Jul 2019
Web frameworks
Microsoft ASP.NET
since Jul 2019
Web servers
Widgets
Audience
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.72 / 10 · ranked #2,131,288 of all domains
22 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 7.4 MB · 202 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.ibew21.org | 13 |
| ibew21.org | 9 |