[Rules] Add proxied DNS record requirement (#19042)

Author: pedrosousa

src/content/docs/rules/cloud-connector/index.mdx

@@ -11,10 +11,15 @@ head:
     content: Cloud Connector (beta)
 ---
 
-import { FeatureTable } from "~/components";
+import { FeatureTable, Render } from "~/components";
 
 Cloud Connector (beta) allows you to route matching incoming traffic from your website to a public cloud provider that you define: [Cloudflare R2](/r2/) object storage or an external provider such as AWS, Google Cloud, and Azure. With Cloud Connector you can make Cloudflare the control center for your web traffic, including traffic served from public cloud providers, without having to configure additional rules.
 
+<Render
+	file="rules-requirements"
+	params={{ one: "Cloud Connector requires" }}
+/>
+
 ## How it works
 
 First, you configure a Cloud Connector rule that specifies:

src/content/docs/rules/custom-error-responses/index.mdx

@@ -15,6 +15,8 @@ Custom Error Responses (beta), powered by the [Ruleset Engine](/ruleset-engine/)
 
 To configure a custom error response, create a custom error response rule at the zone level. Custom error response rules will override [Custom Pages](/support/more-dashboard-apps/cloudflare-custom-pages/configuring-custom-pages-error-and-challenge/) at the zone or account level.
 
+Custom Error Responses require that you [proxy the DNS records](/dns/manage-dns-records/reference/proxied-dns-records/) of your domain (or subdomain) through Cloudflare.
+
 :::note[Notes about the beta]
 
 During the beta, you can define Custom Error Responses using inline templates and specify the response's content type and HTTP status code.

src/content/docs/rules/snippets/index.mdx

@@ -17,6 +17,8 @@ Cloudflare Snippets (beta) provide a powerful and flexible way to customize the
 
 For code samples addressing common use cases, please refer to the [Examples](/rules/snippets/examples/) section.
 
+<Render file="rules-requirements" params={{ one: "Snippets require" }} />
+
 ## Snippets elements
 
 To create and deploy a Snippet, you need to define the following elements: