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Protect your origin server — Pro

Your origin server is a physical or virtual machine that is not owned by Cloudflare and hosts your application content (data, webpages, etc.).

Receiving too many requests can be bad for your origin. These requests might increase latency for visitors, incur higher costs — particularly for cloud-based machines — and could knock your application offline.

Select a plan to see how Cloudflare can help you protect your origin:

Free Pro Business Enterprise

Secure origin connections

When you secure origin connections, it prevents attackers from discovering and overloading your origin server with requests.

Monitor origin health

To receive an email when Cloudflare is unable to reach your origin, create a notification for Passive Origin Monitoring.

For more active monitoring, set up standalone health checks for your origin.

Zero Downtime Failover

If you have another A or AAAA record in your Cloudflare DNS or your Cloudflare Load Balancer provides another origin in the same pool, Zero-Downtime Failover automatically retries requests to your origin even before a Load Balancing decision is made.

Cloudflare currently retries only once for HTTP 521, 522, and 523 response codes.

Reduce origin traffic

Block traffic

For more details, refer to Secure your website.

Increase caching

The cache stores data from your application (webpages, etc.) at Cloudflare data centers around the world, which reduces the number of requests sent to your origin server.

Distribute traffic

To randomly distribute traffic across multiple servers, set up multiple DNS records.

For more fine-grained control over traffic distribution — including automatic failover, intelligent routing, and more — set up our add-on load balancing service.