reCAPTCHA
reCAPTCHA v3 is a spam and abuse protection service that scores form submissions without showing a user challenge.
CDN
When a CDN sits in front of the Next.js app, two things are in play. The CDN reuses cached responses according to the HTTP cache headers the UI emits (automatic), and operators can force entries out of the CDN ahead of those headers through the optional purge integration.
Observability
Structured logging and tracing are provided by the @repo/logging