Update add-site.mdx (#16959)

* Update add-site.mdx

* Update src/content/docs/fundamentals/setup/manage-domains/add-site.mdx

Co-authored-by: hyperlint-ai[bot] <154288675+hyperlint-ai[bot]@users.noreply.github.com>

* Update src/content/docs/fundamentals/setup/manage-domains/add-site.mdx

Co-authored-by: hyperlint-ai[bot] <154288675+hyperlint-ai[bot]@users.noreply.github.com>

* Update src/content/docs/fundamentals/setup/manage-domains/add-site.mdx

---------

Co-authored-by: hyperlint-ai[bot] <154288675+hyperlint-ai[bot]@users.noreply.github.com>

src/content/docs/fundamentals/setup/manage-domains/add-site.mdx

@@ -6,7 +6,9 @@ pcx_content_type: tutorial
 
 import { Render } from "~/components"
 
-When you add a site to Cloudflare, you need to create a new domain within Cloudflare and then perform additional steps to activate that domain.
+Follow these steps to add your website or application to Cloudflare. Once your domain is [active](/dns/zone-setups/reference/domain-status/#active), your web traffic will [proxy through Cloudflare](/fundamentals/concepts/how-cloudflare-works/#how-cloudflare-works-as-a-reverse-proxy), which speeds up and protects websites and services on your domain.
+
+Cloudflare will become the primary [DNS provider](/fundamentals/concepts/how-cloudflare-works/#how-cloudflare-works-as-a-dns-provider) for your domain, meaning your [DNS records](/dns/concepts/#dns-records) are managed at Cloudflare, and we authoritatively answer all DNS queries.
 
 :::note