How do CDNs provide security?
CDNs provide security at the edge by terminating SSL/TLS connections closer to users, offering DDoS protection, deploying Web Application Firewalls (WAFs), and managing SSL certificates at scale across hundreds of edge locations.
CDN SSL/TLS termination
CDN edge servers handle the SSL/TLS handshake on behalf of the origin server. This reduces the computational burden on the origin and enables faster secure connections, as the handshake occurs with a geographically closer server.
Security benefits of a CDN
CDNs provide an additional layer of security including DDoS mitigation, bot management, rate limiting, and edge-based firewall rules — all without requiring changes to the origin infrastructure.