What powers castlelearning.com?
Last seen Jun 2026 · 46 technologies across 25 categories
Accessibility
Advertising
AppNexus
since Aug 2020
Analytics
Google Analytics
since Jun 2018
Matomo
since Aug 2018
Authentication
Google Sign-in
since Feb 2021
CDN
CMS
WordPress
since Jul 2020
Databases
MySQL
since Jul 2020
Digital asset management
Dropbox
since Oct 2024
Font scripts
JavaScript Frameworks
React
since Aug 2018
JavaScript graphics
JavaScript libraries
jQuery UI
since Aug 2018
Load balancers
Amazon ALB
since Jun 2026
Marketing automation
HubSpot
since Jun 2018
Miscellaneous
Mobile frameworks
PaaS
Amazon Web Services
since Jun 2026
Atlassian Statuspage
since Jan 2023
Performance
Priority Hints
since Sep 2023
Programming languages
PHP
since Jul 2020
Security
SEO
Tag managers
Google Tag Manager
since Apr 2018
UI frameworks
Webmail
Microsoft 365
since Jun 2026
Widgets
Audience
- 100% desktop
United States
Canada
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.03 / 10 · ranked #545,615 of all domains
100 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Subdomains
| Host | Techs |
|---|---|
| cl.castlelearning.com | 23 |
| www.castlelearning.com | 19 |
| qa.castlelearning.com | 18 |
| castlelearning.com | 14 |
| blog.castlelearning.com | 13 |
| info.castlelearning.com | 9 |
Full technology history →
Report an incorrect detection