What powers npi.org?
Last seen Jun 2026 · 26 technologies across 16 categories
Analytics
Google Analytics
since Feb 2020
CDN
Cloudflare
since Jan 2023
CMS
Font scripts
Google Font API
since Sep 2022
JavaScript libraries
Slick
since Jul 2020
LMS
Thinkific
since Sep 2022
Miscellaneous
Programming languages
Reverse proxies
Envoy
since Apr 2026
Rich text editors
Security
UI frameworks
Web frameworks
Ruby on Rails
since Sep 2022
Web server extensions
Engintron
since Mar 2025
Web servers
Nginx
since Sep 2022
Webmail
Proton Mail
since Feb 2024
Audience
- 55% desktop
- 45% phone
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.22 / 10 · ranked #448,177 of all domains
93 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| CLS | 0.1 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 2.4 MB · 173 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| training.npi.org | 15 |
| npi.org | 13 |
| www.npi.org | 12 |
Full technology history →
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