Visitor Port Direction Origin Port Common Use 80 Client to Cloudflare 80 Unencrypted Origin Pull 443 Client to Cloudflare 443 Encrypted Origin Pull 80 Client to Cloudflare 8080 Custom Origin Configuration 443 Client to Cloudflare 8443 Custom SSL Termination Firewall and Security Considerations Network security policies must explicitly allow traffic on the designated Cloudflare proxy ports to prevent service interruptions. Cloudflare leverages this port to terminate incoming secure connections, allowing it to inspect traffic for threats before establishing a new, potentially unencrypted, connection to your server.
Optimizing Cloudflare Proxy Ports for Peak Performance
While visitors connect via 80 or 443, Cloudflare initiates requests to your infrastructure over a designated port. Standard HTTP and HTTPS Ports The foundation of Cloudflare proxy ports revolves around the universal standards for web traffic.
Origin Server Communication Behind the scenes, Cloudflare requires specific proxy ports to communicate with your origin server to fetch the actual content. Port 80 handles unencrypted HTTP connections, while Port 443 manages secure HTTPS traffic.
Optimizing Cloudflare Proxy Ports for Peak Performance and Security
This dual-role functionality ensures that security checks do not impede the performance benefits of encryption for the end-user. This configuration is a cornerstone of a robust defense-in-depth strategy.
More About Cloudflare proxy ports
Looking at Cloudflare proxy ports from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on Cloudflare proxy ports can make the topic easier to follow by connecting earlier points with a few simple takeaways.
