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Expand Up @@ -11,7 +11,7 @@ description: Authenticated Origin Pulls helps ensure requests to your origin

import { FeatureTable } from "~/components"

Authenticated Origin Pulls helps ensure requests to your origin server come from the Cloudflare network, which provides an additional layer of security on top of [Full](/ssl/origin-configuration/ssl-modes/full/) or [Full (strict)](/ssl/origin-configuration/ssl-modes/full-strict/) encryption modes.
Authenticated Origin Pulls (AOP) helps ensure requests to your origin server come from the Cloudflare network, which provides an additional layer of security on top of [Full](/ssl/origin-configuration/ssl-modes/full/) or [Full (strict)](/ssl/origin-configuration/ssl-modes/full-strict/) encryption modes.

This authentication becomes particularly important with the [Cloudflare Web Application Firewall (WAF)](/waf/). Together with the WAF, you can make sure that **all traffic** is evaluated before receiving a response from your origin server.

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Expand Up @@ -11,12 +11,19 @@ head:

import { AvailableNotifications, Render } from "~/components"

When you enable Authenticated Origin Pulls for a zone, all proxied traffic to your zone is authenticated at the origin web server.
When you enable Authenticated Origin Pulls (AOP) for a zone, all proxied traffic to your zone is authenticated at the origin web server.

## Before you begin

Make sure your zone is using an [SSL/TLS encryption mode](/ssl/origin-configuration/ssl-modes/) of **Full** or higher.

:::caution

Zone-level AOP certificates are also applied to [custom hostnames](/cloudflare-for-platforms/cloudflare-for-saas/domain-support/) configured on a Cloudflare for SaaS zone.
If you need a different AOP certificate to apply to different custom hostnames, use [Per-hostname AOP](/ssl/origin-configuration/authenticated-origin-pull/set-up/per-hostname/).

:::

## 1. Upload certificate to origin

First, upload a certificate to your origin.
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