What powers circle21.events?
Last seen Jun 2026 · 16 technologies across 13 categories
Analytics
Google Analytics
since Mar 2025
Appointment scheduling
Calendly
since Feb 2025
Authentication
Google Sign-in
since Feb 2025
Font scripts
Google Font API
since Feb 2025
Issue trackers
Sentry
since Feb 2025
JavaScript frameworks
JavaScript libraries
Keen-Slider
since Feb 2026
Miscellaneous
Webpack
since Feb 2025
PaaS
Amazon Web Services
since Feb 2025
Payment processors
Programming languages
Node.js
since Feb 2025
UI frameworks
MUI
since Feb 2025
Web servers
Audience
- 73% phone
- 26% desktop
- 1% tablet
United Kingdom
Spain
Belgium
Austria
Switzerland
Singapore
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.11 / 10 · ranked #1,405,003 of all domains
26 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.9 s |
| INP | 150 ms |
| CLS | 0.2 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 7.9 MB · 87 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- dropped Google Maps Mar 2026
- dropped lit-element Mar 2026
- dropped lit-html Mar 2026
- dropped Apple Sign-in Feb 2026
- detected Keen-Slider Feb 2026
- detected Apple Sign-in Dec 2025
- detected Stripe Dec 2025