diff --git a/projects/plugins/jetpack/_inc/client/writing/custom-css.jsx b/projects/plugins/jetpack/_inc/client/writing/custom-css.jsx
index 396ae1d89c710..4a8b545877b94 100644
--- a/projects/plugins/jetpack/_inc/client/writing/custom-css.jsx
+++ b/projects/plugins/jetpack/_inc/client/writing/custom-css.jsx
@@ -42,16 +42,14 @@ const CustomizerLink = ( { children, siteAdminUrl } ) => (
 export const StartFreshDeprecationWarning = ( { siteAdminUrl } ) =>
 	createInterpolateElement(
 		__(
-			"The <i>Start Fresh</i> option in the <a1>CSS customization panel</a1> is enabled, which means the theme's original CSS is not applied. <b>This option will no longer be supported after August 6, 2024.</b> and you'll need to modify your <a2>theme stylesheet</a2>.",
+			"The <i>Start Fresh</i> option in the <a1>CSS customization panel</a1> is enabled, which means the theme's original CSS is not applied. <b>This option will no longer be supported after August 6, 2024.</b> <a2>See how to keep your site intact</a2>.",
 			'jetpack'
 		),
 		{
 			i: <i />,
 			b: <b />,
 			a1: <CustomizerLink siteAdminUrl={ siteAdminUrl } />,
-			a2: (
-				<ExternalLink href="https://developer.wordpress.org/themes/basics/main-stylesheet-style-css/" />
-			),
+			a2: <ExternalLink href={ getRedirectUrl( 'jetpack-support-custom-css' ) } />,
 		}
 	);
 
diff --git a/projects/plugins/jetpack/modules/custom-css/custom-css.php b/projects/plugins/jetpack/modules/custom-css/custom-css.php
index 1274eb7cfb32a..2f301d0453932 100644
--- a/projects/plugins/jetpack/modules/custom-css/custom-css.php
+++ b/projects/plugins/jetpack/modules/custom-css/custom-css.php
@@ -3,6 +3,7 @@
 // phpcs:disable Universal.Files.SeparateFunctionsFromOO.Mixed -- TODO: Move classes to appropriately-named class files.
 
 use Automattic\Jetpack\Assets;
+use Automattic\Jetpack\Redirect;
 
 /**
  * Alternate Custom CSS source for 4.7 compat.
@@ -1020,11 +1021,11 @@ public static function display_frontend_warning() {
 			sprintf(
 				// translators: 1: URL to the CSS customization panel, 2: URL to the theme stylesheet documentation.
 				__(
-					'The <i>Start Fresh</i> option in the <a href="%1$s">CSS customization panel</a> is enabled, which means the theme\'s original CSS is not applied. <b>This option will no longer be supported after August 6, 2024</b> and you\'ll need to modify your <a href="%2$s">theme stylesheet</a>.',
+					'The <i>Start Fresh</i> option in the <a href="%1$s">CSS customization panel</a> is enabled, which means the theme\'s original CSS is not applied. <b>This option will no longer be supported after August 6, 2024.</b> <a href="%2$s">See how to keep your site intact.</a>',
 					'jetpack'
 				),
 				esc_url( admin_url( 'customize.php?autofocus%5Bsection%5D=custom_css' ) ),
-				esc_url( 'https://developer.wordpress.org/themes/basics/main-stylesheet-style-css/' )
+				esc_url( Redirect::get_url( 'jetpack-support-custom-css' ) )
 			),
 			array(
 				'i' => array(),