What powers cstsr.org?
Last seen Apr 2026 · 26 technologies across 18 categories
Advertising
Microsoft Advertising
since Jan 2025
Analytics
Google Analytics
since Nov 2021
Pendo
since Apr 2026
Authentication
Facebook Login
since Nov 2021
Caching
Varnish
since Feb 2023
CDN
cdnjs
since Jun 2024
Cloudflare
since Jul 2022
Cookie compliance
Usercentrics
since Jan 2024
Editors
Font scripts
Hosting
GoDaddy
since Aug 2025
JavaScript libraries
Miscellaneous
PWA
since Aug 2022
Payment processors
Programming languages
PHP
since Nov 2021
Rich text editors
CKEditor
since Nov 2021
Security
HSTS
since Sep 2022
UI frameworks
Web servers
Apache HTTP Server
since Nov 2021
Webmail
Google Workspace
since Aug 2025
Audience
- 100% desktop
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.62 / 10 · ranked #5,537,663 of all domains
11 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.6 s |
| INP | 50 ms |
| CLS | 0.3 |
| TTFB | 1900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Pendo Apr 2026
- dropped Amazon SES Oct 2025
- dropped Amazon Web Services Oct 2025
- dropped Microsoft 365 Oct 2025
- dropped Zendesk Oct 2025
- detected GoDaddy Aug 2025
- detected Google Workspace Aug 2025