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Understanding the True-Client-IP Header

  • Updated

Learn how to see end-user IP addresses in origin requests with Cloudflare's True-Client-IP Header.

Overview

Connections from Cloudflare to origin servers come from Cloudflare IPs. True-Client-IP is a solution that allows Cloudflare users to see the end user’s IP address, even when the traffic to the origin is sent directly from Cloudflare.

This feature is only available to Enterprise users.

When the True-Client-IP feature is enabled, Cloudflare adds a True-Client-IP header to the request sent to the origin with the IP address of the end-user.

True-Client-IP supplements the current CF-Connecting-IP and X-Forwarded-For headers. We recommend relying on the CF-Connecting-IP (or True-Client-IP) instead of X-Forwarded-For headers if you need the actual client (visitor) IP address.

Enable True-Client-IP Header

To enable the True-Client-IP header,

  1. Log in to your Cloudflare account.
  2. Navigate to the Network app of the Cloudflare dashboard.
  3. For True-Client-IP Header, select On.

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