diff --git a/.env.dist.testing b/.env.dist.testing
index 18ab5f7..55b75c9 100644
--- a/.env.dist.testing
+++ b/.env.dist.testing
@@ -27,7 +27,7 @@ CONVERTKIT_API_LANDING_PAGE_URL="https://cheerful-architect-3237.ck.page/99f1db6
 CONVERTKIT_API_LANDING_PAGE_CHARACTER_ENCODING_ID="2849151"
 CONVERTKIT_API_LANDING_PAGE_CHARACTER_ENCODING_URL="https://cheerful-architect-3237.ck.page/cc5eb21744"
 CONVERTKIT_API_LEGACY_LANDING_PAGE_ID="470103"
-CONVERTKIT_API_LEGACY_LANDING_PAGE_URL="https://app.convertkit.com/landing_pages/470103"
+CONVERTKIT_API_LEGACY_LANDING_PAGE_URL="https://app.kit.com/landing_pages/470103"
 CONVERTKIT_API_POST_ID="3175837"
 CONVERTKIT_API_PRODUCT_ID="36377"
 CONVERTKIT_API_SEQUENCE_ID="1030824"
diff --git a/.env.example b/.env.example
index 4e150e1..3dd7952 100644
--- a/.env.example
+++ b/.env.example
@@ -33,7 +33,7 @@ CONVERTKIT_API_LANDING_PAGE_URL="https://cheerful-architect-3237.ck.page/99f1db6
 CONVERTKIT_API_LANDING_PAGE_CHARACTER_ENCODING_ID="2849151"
 CONVERTKIT_API_LANDING_PAGE_CHARACTER_ENCODING_URL="https://cheerful-architect-3237.ck.page/cc5eb21744"
 CONVERTKIT_API_LEGACY_LANDING_PAGE_ID="470103"
-CONVERTKIT_API_LEGACY_LANDING_PAGE_URL="https://app.convertkit.com/landing_pages/470103"
+CONVERTKIT_API_LEGACY_LANDING_PAGE_URL="https://app.kit.com/landing_pages/470103"
 CONVERTKIT_API_POST_ID="3175837"
 CONVERTKIT_API_PRODUCT_ID="36377"
 CONVERTKIT_API_SEQUENCE_ID="1030824"
diff --git a/composer.json b/composer.json
index 10c99ff..c998af9 100644
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,7 @@
     "authors": [
         {
             "name": "ConvertKit",
-            "email": "support@convertkit.com"
+            "email": "support@kit.com"
         }
     ],
     "type": "library",
diff --git a/src/class-convertkit-api-traits.php b/src/class-convertkit-api-traits.php
index 2973a15..02bc0e3 100644
--- a/src/class-convertkit-api-traits.php
+++ b/src/class-convertkit-api-traits.php
@@ -36,14 +36,14 @@ trait ConvertKit_API_Traits
      *
      * @var string
      */
-    protected $oauth_authorize_url = 'https://app.convertkit.com/oauth/authorize';
+    protected $oauth_authorize_url = 'https://app.kit.com/oauth/authorize';
 
     /**
      * OAuth Token URL
      *
      * @var string
      */
-    protected $oauth_token_url = 'https://api.convertkit.com/oauth/token';
+    protected $oauth_token_url = 'https://api.kit.com/oauth/token';
 
     /**
      * Version of ConvertKit API
@@ -57,13 +57,13 @@ trait ConvertKit_API_Traits
      *
      * @var string
      */
-    protected $api_url_base = 'https://api.convertkit.com/';
+    protected $api_url_base = 'https://api.kit.com/';
 
 
     /**
      * Gets the current account
      *
-     * @see https://developers.convertkit.com/v4.html#get-current-account
+     * @see https://developers.kit.com/v4.html#get-current-account
      *
      * @return WP_Error|array
      */
@@ -75,7 +75,7 @@ public function get_account()
     /**
      * Gets the account's colors
      *
-     * @see https://developers.convertkit.com/v4.html#list-colors
+     * @see https://developers.kit.com/v4.html#list-colors
      *
      * @return WP_Error|array
      */
@@ -89,7 +89,7 @@ public function get_account_colors()
      *
      * @param array<string, string> $colors Hex colors.
      *
-     * @see https://developers.convertkit.com/v4.html#list-colors
+     * @see https://developers.kit.com/v4.html#list-colors
      *
      * @return WP_Error|array
      */
@@ -104,7 +104,7 @@ public function update_account_colors(array $colors)
     /**
      * Gets the Creator Profile
      *
-     * @see https://developers.convertkit.com/v4.html#get-creator-profile
+     * @see https://developers.kit.com/v4.html#get-creator-profile
      *
      * @return WP_Error|array
      */
@@ -116,7 +116,7 @@ public function get_creator_profile()
     /**
      * Gets email stats
      *
-     * @see https://developers.convertkit.com/v4.html#get-email-stats
+     * @see https://developers.kit.com/v4.html#get-email-stats
      *
      * @return WP_Error|array
      */
@@ -131,7 +131,7 @@ public function get_email_stats()
      * @param \DateTime $starting Gets stats for time period beginning on this date. Defaults to 90 days ago.
      * @param \DateTime $ending   Gets stats for time period ending on this date. Defaults to today.
      *
-     * @see https://developers.convertkit.com/v4.html#get-growth-stats
+     * @see https://developers.kit.com/v4.html#get-growth-stats
      *
      * @return WP_Error|array
      */
@@ -157,7 +157,7 @@ public function get_growth_stats(\DateTime $starting = null, \DateTime $ending =
      *
      * @since 1.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#convertkit-api-forms
+     * @see https://developers.kit.com/v4.html#convertkit-api-forms
      *
      * @return WP_Error|array
      */
@@ -194,7 +194,7 @@ public function get_forms(
      *
      * @since 1.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#convertkit-api-forms
+     * @see https://developers.kit.com/v4.html#convertkit-api-forms
      *
      * @return WP_Error|array
      */
@@ -226,7 +226,7 @@ public function get_landing_pages(
      * @param integer $form_id       Form ID.
      * @param string  $email_address Email Address.
      *
-     * @see https://developers.convertkit.com/v4.html#add-subscriber-to-form-by-email-address
+     * @see https://developers.kit.com/v4.html#add-subscriber-to-form-by-email-address
      *
      * @return WP_Error|array
      */
@@ -244,7 +244,7 @@ public function add_subscriber_to_form_by_email(int $form_id, string $email_addr
      * @param integer $form_id       Form ID.
      * @param integer $subscriber_id Subscriber ID.
      *
-     * @see https://developers.convertkit.com/v4.html#add-subscriber-to-form
+     * @see https://developers.kit.com/v4.html#add-subscriber-to-form
      *
      * @since 2.0.0
      *
@@ -284,7 +284,7 @@ public function add_subscriber_to_legacy_form(int $form_id, int $subscriber_id)
      * @param string    $before_cursor       Return results before the given pagination cursor.
      * @param integer   $per_page            Number of results to return.
      *
-     * @see https://developers.convertkit.com/v4.html#list-subscribers-for-a-form
+     * @see https://developers.kit.com/v4.html#list-subscribers-for-a-form
      *
      * @return WP_Error|array
      */
@@ -340,7 +340,7 @@ public function get_form_subscriptions(
      * @param string  $before_cursor       Return results before the given pagination cursor.
      * @param integer $per_page            Number of results to return.
      *
-     * @see https://developers.convertkit.com/v4.html#list-sequences
+     * @see https://developers.kit.com/v4.html#list-sequences
      *
      * @return WP_Error|array
      */
@@ -368,7 +368,7 @@ public function get_sequences(
      * @param integer $sequence_id   Sequence ID.
      * @param string  $email_address Email Address.
      *
-     * @see https://developers.convertkit.com/v4.html#add-subscriber-to-sequence-by-email-address
+     * @see https://developers.kit.com/v4.html#add-subscriber-to-sequence-by-email-address
      *
      * @return WP_Error|array
      */
@@ -386,7 +386,7 @@ public function add_subscriber_to_sequence_by_email(int $sequence_id, string $em
      * @param integer $sequence_id   Sequence ID.
      * @param integer $subscriber_id Subscriber ID.
      *
-     * @see https://developers.convertkit.com/v4.html#add-subscriber-to-sequence
+     * @see https://developers.kit.com/v4.html#add-subscriber-to-sequence
      *
      * @since 2.0.0
      *
@@ -411,7 +411,7 @@ public function add_subscriber_to_sequence(int $sequence_id, int $subscriber_id)
      * @param string    $before_cursor       Return results before the given pagination cursor.
      * @param integer   $per_page            Number of results to return.
      *
-     * @see https://developers.convertkit.com/v4.html#list-subscribers-for-a-sequence
+     * @see https://developers.kit.com/v4.html#list-subscribers-for-a-sequence
      *
      * @return WP_Error|array
      */
@@ -467,7 +467,7 @@ public function get_sequence_subscriptions(
      * @param string  $before_cursor       Return results before the given pagination cursor.
      * @param integer $per_page            Number of results to return.
      *
-     * @see https://developers.convertkit.com/v4.html#list-tags
+     * @see https://developers.kit.com/v4.html#list-tags
      *
      * @return WP_Error|array
      */
@@ -496,7 +496,7 @@ public function get_tags(
      *
      * @since 1.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#create-a-tag
+     * @see https://developers.kit.com/v4.html#create-a-tag
      *
      * @return WP_Error|array
      */
@@ -516,7 +516,7 @@ public function create_tag(string $tag)
      *
      * @since 1.1.0
      *
-     * @see https://developers.convertkit.com/v4.html#bulk-create-tags
+     * @see https://developers.kit.com/v4.html#bulk-create-tags
      *
      * @return WP_Error|array
      */
@@ -549,7 +549,7 @@ public function create_tags(array $tags, string $callback_url = '')
      * @param integer $tag_id        Tag ID.
      * @param string  $email_address Email Address.
      *
-     * @see https://developers.convertkit.com/v4.html#tag-a-subscriber-by-email-address
+     * @see https://developers.kit.com/v4.html#tag-a-subscriber-by-email-address
      *
      * @return WP_Error|array
      */
@@ -567,7 +567,7 @@ public function tag_subscriber_by_email(int $tag_id, string $email_address)
      * @param integer $tag_id        Tag ID.
      * @param integer $subscriber_id Subscriber ID.
      *
-     * @see https://developers.convertkit.com/v4.html#tag-a-subscriber
+     * @see https://developers.kit.com/v4.html#tag-a-subscriber
      *
      * @return WP_Error|array
      */
@@ -584,7 +584,7 @@ public function tag_subscriber(int $tag_id, int $subscriber_id)
      *
      * @since 1.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#remove-tag-from-subscriber
+     * @see https://developers.kit.com/v4.html#remove-tag-from-subscriber
      *
      * @return WP_Error|array
      */
@@ -601,7 +601,7 @@ public function remove_tag_from_subscriber(int $tag_id, int $subscriber_id)
      *
      * @since 1.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#remove-tag-from-subscriber-by-email-address
+     * @see https://developers.kit.com/v4.html#remove-tag-from-subscriber-by-email-address
      *
      * @return WP_Error|array
      */
@@ -627,7 +627,7 @@ public function remove_tag_from_subscriber_by_email(int $tag_id, string $email_a
      * @param string    $before_cursor       Return results before the given pagination cursor.
      * @param integer   $per_page            Number of results to return.
      *
-     * @see https://developers.convertkit.com/v4.html#list-subscribers-for-a-tag
+     * @see https://developers.kit.com/v4.html#list-subscribers-for-a-tag
      *
      * @return WP_Error|array
      */
@@ -685,7 +685,7 @@ public function get_tag_subscriptions(
      *
      * @since 2.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#convertkit-api-email-templates
+     * @see https://developers.kit.com/v4.html#convertkit-api-email-templates
      *
      * @return WP_Error|array
      */
@@ -726,7 +726,7 @@ public function get_email_templates(
      *
      * @since 2.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#list-subscribers
+     * @see https://developers.kit.com/v4.html#list-subscribers
      *
      * @return WP_Error|array
      */
@@ -799,7 +799,7 @@ public function get_subscribers(
      *
      * @since 2.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#create-a-subscriber
+     * @see https://developers.kit.com/v4.html#create-a-subscriber
      *
      * @return mixed
      */
@@ -837,7 +837,7 @@ public function create_subscriber(
      *
      * @since 2.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#bulk-create-subscribers
+     * @see https://developers.kit.com/v4.html#bulk-create-subscribers
      *
      * @return mixed
      */
@@ -865,7 +865,7 @@ public function create_subscribers(array $subscribers, string $callback_url = ''
      *
      * @throws \InvalidArgumentException If the email address is not a valid email format.
      *
-     * @see https://developers.convertkit.com/v4.html#get-a-subscriber
+     * @see https://developers.kit.com/v4.html#get-a-subscriber
      *
      * @return bool|WP_Error|integer
      */
@@ -889,7 +889,7 @@ public function get_subscriber_id(string $email_address)
      *
      * @param integer $subscriber_id Subscriber ID.
      *
-     * @see https://developers.convertkit.com/v4.html#get-a-subscriber
+     * @see https://developers.kit.com/v4.html#get-a-subscriber
      *
      * @return bool|WP_Error|array
      */
@@ -906,7 +906,7 @@ public function get_subscriber(int $subscriber_id)
      * @param string                $email_address New Email Address.
      * @param array<string, string> $fields        Updated Custom Fields.
      *
-     * @see https://developers.convertkit.com/v4.html#update-a-subscriber
+     * @see https://developers.kit.com/v4.html#update-a-subscriber
      *
      * @return WP_Error|array
      */
@@ -941,7 +941,7 @@ public function update_subscriber(
      *
      * @param string $email_address Email Address.
      *
-     * @see https://developers.convertkit.com/v4.html#unsubscribe-subscriber
+     * @see https://developers.kit.com/v4.html#unsubscribe-subscriber
      *
      * @return bool|WP_Error|array
      */
@@ -960,7 +960,7 @@ public function unsubscribe_by_email(string $email_address)
      *
      * @param integer $subscriber_id Subscriber ID.
      *
-     * @see https://developers.convertkit.com/v4.html#unsubscribe-subscriber
+     * @see https://developers.kit.com/v4.html#unsubscribe-subscriber
      *
      * @return bool|WP_Error|array
      */
@@ -978,7 +978,7 @@ public function unsubscribe(int $subscriber_id)
      * @param string  $before_cursor       Return results before the given pagination cursor.
      * @param integer $per_page            Number of results to return.
      *
-     * @see https://developers.convertkit.com/v4.html#list-tags-for-a-subscriber
+     * @see https://developers.kit.com/v4.html#list-tags-for-a-subscriber
      *
      * @return WP_Error|array
      */
@@ -1009,7 +1009,7 @@ public function get_subscriber_tags(
      * @param string  $before_cursor       Return results before the given pagination cursor.
      * @param integer $per_page            Number of results to return.
      *
-     * @see https://developers.convertkit.com/v4.html#list-broadcasts
+     * @see https://developers.kit.com/v4.html#list-broadcasts
      *
      * @return WP_Error|array
      */
@@ -1055,7 +1055,7 @@ public function get_broadcasts(
      * @param string               $preview_text      Specify the preview text of the email.
      * @param array<string,string> $subscriber_filter Filter subscriber(s) to send the email to.
      *
-     * @see https://developers.convertkit.com/v4.html#create-a-broadcast
+     * @see https://developers.kit.com/v4.html#create-a-broadcast
      *
      * @return bool|WP_Error|array
      */
@@ -1114,7 +1114,7 @@ public function create_broadcast(
      *
      * @param integer $id Broadcast ID.
      *
-     * @see https://developers.convertkit.com/v4.html#get-a-broadcast
+     * @see https://developers.kit.com/v4.html#get-a-broadcast
      *
      * @return bool|WP_Error|array
      */
@@ -1129,7 +1129,7 @@ public function get_broadcast(int $id)
      *
      * @param integer $id Broadcast ID.
      *
-     * @see https://developers.convertkit.com/v4.html#get-stats
+     * @see https://developers.kit.com/v4.html#get-stats
      *
      * @return bool|WP_Error|array
      */
@@ -1162,7 +1162,7 @@ public function get_broadcast_stats(int $id)
      * @param string               $preview_text      Specify the preview text of the email.
      * @param array<string,string> $subscriber_filter Filter subscriber(s) to send the email to.
      *
-     * @see https://developers.convertkit.com/#create-a-broadcast
+     * @see https://developers.kit.com/#create-a-broadcast
      *
      * @return bool|WP_Error|array
      */
@@ -1224,7 +1224,7 @@ public function update_broadcast(
      *
      * @since 1.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#delete-a-broadcast
+     * @see https://developers.kit.com/v4.html#delete-a-broadcast
      *
      * @return bool|WP_Error|array
      */
@@ -1243,7 +1243,7 @@ public function delete_broadcast(int $id)
      *
      * @since 2.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#list-webhooks
+     * @see https://developers.kit.com/v4.html#list-webhooks
      *
      * @return WP_Error|array
      */
@@ -1275,7 +1275,7 @@ public function get_webhooks(
      *
      * @since 1.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#create-a-webhook
+     * @see https://developers.kit.com/v4.html#create-a-webhook
      *
      * @throws \InvalidArgumentException If the event is not supported.
      *
@@ -1351,7 +1351,7 @@ public function create_webhook(string $url, string $event, string $parameter = '
      *
      * @since 1.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#delete-a-webhook
+     * @see https://developers.kit.com/v4.html#delete-a-webhook
      *
      * @return bool|WP_Error|array
      */
@@ -1370,7 +1370,7 @@ public function delete_webhook(int $id)
      *
      * @since 1.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#list-custom-fields
+     * @see https://developers.kit.com/v4.html#list-custom-fields
      *
      * @return WP_Error|array
      */
@@ -1400,7 +1400,7 @@ public function get_custom_fields(
      *
      * @since 1.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#create-a-custom-field
+     * @see https://developers.kit.com/v4.html#create-a-custom-field
      *
      * @return bool|WP_Error|array
      */
@@ -1420,7 +1420,7 @@ public function create_custom_field(string $label)
      *
      * @since 1.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#bulk-create-custom-fields
+     * @see https://developers.kit.com/v4.html#bulk-create-custom-fields
      *
      * @return bool|WP_Error|array
      */
@@ -1455,7 +1455,7 @@ public function create_custom_fields(array $labels, string $callback_url = '')
      *
      * @since 1.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#update-a-custom-field
+     * @see https://developers.kit.com/v4.html#update-a-custom-field
      *
      * @return bool|WP_Error|array
      */
@@ -1474,7 +1474,7 @@ public function update_custom_field(int $id, string $label)
      *
      * @since 1.0.0
      *
-     * @see https://developers.convertkit.com/#destroy-field
+     * @see https://developers.kit.com/#destroy-field
      *
      * @return bool|WP_Error|array
      */
@@ -1493,7 +1493,7 @@ public function delete_custom_field(int $id)
      *
      * @since 1.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#list-purchases
+     * @see https://developers.kit.com/v4.html#list-purchases
      *
      * @return WP_Error|array
      */
@@ -1521,7 +1521,7 @@ public function get_purchases(
      *
      * @param integer $purchase_id Purchase ID.
      *
-     * @see https://developers.convertkit.com/v4.html#get-a-purchase
+     * @see https://developers.kit.com/v4.html#get-a-purchase
      *
      * @return bool|WP_Error|array
      */
@@ -1546,7 +1546,7 @@ public function get_purchase(int $purchase_id)
      * @param float                          $total            Total.
      * @param \DateTime                      $transaction_time Transaction date and time.
      *
-     * @see https://developers.convertkit.com/v4.html#create-a-purchase
+     * @see https://developers.kit.com/v4.html#create-a-purchase
      *
      * @return bool|WP_Error|array
      */
@@ -1608,7 +1608,7 @@ public function create_purchase(
      *
      * @since 2.0.0
      *
-     * @see https://developers.convertkit.com/v4.html#convertkit-api-segments
+     * @see https://developers.kit.com/v4.html#convertkit-api-segments
      *
      * @return WP_Error|array
      */
diff --git a/src/class-convertkit-api-v4.php b/src/class-convertkit-api-v4.php
index 07b8bfd..0de99e4 100644
--- a/src/class-convertkit-api-v4.php
+++ b/src/class-convertkit-api-v4.php
@@ -81,7 +81,7 @@ class ConvertKit_API_V4 {
 
 	/**
 	 * ConvertKit API endpoints that use the /oauth/ namespace
-	 * i.e. https://api.convertkit.com/oauth/endpoint
+	 * i.e. https://api.kit.com/oauth/endpoint
 	 *
 	 * @since   2.0.0
 	 *
@@ -93,7 +93,7 @@ class ConvertKit_API_V4 {
 
 	/**
 	 * ConvertKit API endpoints that use the /wordpress/ namespace
-	 * i.e. https://api.convertkit.com/wordpress/endpoint
+	 * i.e. https://api.kit.com/wordpress/endpoint
 	 *
 	 * @since   1.3.0
 	 *
@@ -602,7 +602,7 @@ public function sequence_subscribe( $sequence_id, $email, $first_name = '', $cus
 	 *
 	 * @param string $email_address Email Address.
 	 *
-	 * @see https://developers.convertkit.com/v4.html#get-a-subscriber
+	 * @see https://developers.kit.com/v4.html#get-a-subscriber
 	 *
 	 * @return WP_Error|false|integer
 	 */
@@ -631,7 +631,7 @@ public function get_subscriber_id( string $email_address ) {
 	 *
 	 * @param string $email_address Email Address.
 	 *
-	 * @see https://developers.convertkit.com/v4.html#unsubscribe-subscriber
+	 * @see https://developers.kit.com/v4.html#unsubscribe-subscriber
 	 *
 	 * @return WP_Error|false|object
 	 */
@@ -1106,7 +1106,7 @@ public function get_form_html( $id, $api_key = '' ) {
 				'k' => $api_key,
 				'v' => 2,
 			),
-			'https://api.convertkit.com/forms/' . $id . '/embed'
+			'https://api.kit.com/forms/' . $id . '/embed'
 		);
 
 		// Get HTML.
@@ -1221,7 +1221,7 @@ public function get_html( $url, $body_only = true ) {
 		$body               = wp_remote_retrieve_body( $result );
 
 		// If the body appears to be JSON containing an error, the request for a Legacy Form
-		// through api.convertkit.com failed, so return a WP_Error now.
+		// through api.kit.com failed, so return a WP_Error now.
 		if ( $this->is_json( $body ) ) {
 			$json = json_decode( $body );
 			return new WP_Error(
@@ -1695,7 +1695,7 @@ private function get_user_agent() {
 	private function get_api_url( $endpoint ) {
 
 		// For some specific API endpoints created primarily for the WordPress Plugin, the API base is
-		// https://api.convertkit.com/wordpress/$endpoint.
+		// https://api.kit.com/wordpress/$endpoint.
 		// We perform a string search instead of in_array(), because the $endpoint might be e.g.
 		// profile/{subscriber_id} or subscriber_authentication/send_code.
 		foreach ( $this->api_endpoints_wordpress as $wordpress_endpoint ) {
@@ -1704,14 +1704,14 @@ private function get_api_url( $endpoint ) {
 			}
 		}
 
-		// For oAuth API endpoints, the API base is https://api.convertkit.com/oauth/$endpoint.
+		// For oAuth API endpoints, the API base is https://api.kit.com/oauth/$endpoint.
 		foreach ( $this->api_endpoints_oauth as $oauth_endpoint ) {
 			if ( strpos( $endpoint, $oauth_endpoint ) !== false ) {
 				return path_join( $this->api_url_base . 'oauth', $endpoint );
 			}
 		}
 
-		// For all other endpoints, it's https://api.convertkit.com/v4/$endpoint.
+		// For all other endpoints, it's https://api.kit.com/v4/$endpoint.
 		return path_join( $this->api_url_base . $this->api_version, $endpoint );
 
 	}
diff --git a/src/class-convertkit-review-request.php b/src/class-convertkit-review-request.php
index eb9a868..8eeed17 100644
--- a/src/class-convertkit-review-request.php
+++ b/src/class-convertkit-review-request.php
@@ -275,7 +275,7 @@ public function get_review_url() {
 	 */
 	public function get_support_url() {
 
-		return 'https://convertkit.com/support';
+		return 'https://kit.com/support';
 
 	}
 
diff --git a/tests/_support/Helper/WPUnit/API.php b/tests/_support/Helper/WPUnit/API.php
index e4cbc53..732d736 100644
--- a/tests/_support/Helper/WPUnit/API.php
+++ b/tests/_support/Helper/WPUnit/API.php
@@ -32,7 +32,7 @@ public function apiRequest($endpoint, $method = 'GET', $params = array())
 			$client = new \GuzzleHttp\Client();
 			$result = $client->request(
 				$method,
-				'https://api.convertkit.com/v3/' . $endpoint . '?' . http_build_query($params),
+				'https://api.kit.com/v3/' . $endpoint . '?' . http_build_query($params),
 				[
 					'headers' => [
 						'Accept-Encoding' => 'gzip',
diff --git a/tests/wpunit/APITest.php b/tests/wpunit/APITest.php
index 2b8e3eb..e6797d2 100644
--- a/tests/wpunit/APITest.php
+++ b/tests/wpunit/APITest.php
@@ -320,7 +320,7 @@ public function testGetOAuthURL()
 		// Confirm the OAuth URL returned is correct.
 		$this->assertEquals(
 			$this->api->get_oauth_url(),
-			'https://app.convertkit.com/oauth/authorize?' . http_build_query(
+			'https://app.kit.com/oauth/authorize?' . http_build_query(
 				[
 					'client_id'             => $_ENV['CONVERTKIT_OAUTH_CLIENT_ID'],
 					'response_type'         => 'code',
@@ -345,7 +345,7 @@ public function testGetOAuthURLWithState()
 		// Confirm the OAuth URL returned is correct.
 		$this->assertEquals(
 			$this->api->get_oauth_url( 'https://example.com' ),
-			'https://app.convertkit.com/oauth/authorize?' . http_build_query(
+			'https://app.kit.com/oauth/authorize?' . http_build_query(
 				[
 					'client_id'             => $_ENV['CONVERTKIT_OAUTH_CLIENT_ID'],
 					'response_type'         => 'code',
@@ -3734,10 +3734,10 @@ public function testCreateSubscribers()
 	{
 		$subscribers = [
 			[
-				'email_address' => str_replace('@convertkit.com', '-1@convertkit.com', $this->generateEmailAddress()),
+				'email_address' => str_replace('@kit.com', '-1@kit.com', $this->generateEmailAddress()),
 			],
 			[
-				'email_address' => str_replace('@convertkit.com', '-2@convertkit.com', $this->generateEmailAddress()),
+				'email_address' => str_replace('@kit.com', '-2@kit.com', $this->generateEmailAddress()),
 			],
 		];
 		$result      = $this->api->create_subscribers($subscribers);
@@ -4058,7 +4058,7 @@ public function testUnsubscribeByEmail()
 	 */
 	public function testUnsubscribeByEmailWithNotSubscribedEmailAddress()
 	{
-		$result = $this->api->unsubscribe_by_email('not-subscribed@convertkit.com');
+		$result = $this->api->unsubscribe_by_email('not-subscribed@kit.com');
 		$this->assertInstanceOf(WP_Error::class, $result);
 	}
 
@@ -5584,7 +5584,7 @@ public function testSubscriberAuthenticationSendCodeWithSubscribedEmail()
 	public function testSubscriberAuthenticationSendCodeWithNotSubscribedEmail()
 	{
 		$result = $this->api->subscriber_authentication_send_code(
-			'email-not-subscribed@convertkit.com',
+			'email-not-subscribed@kit.com',
 			$_ENV['TEST_SITE_WP_URL']
 		);
 		$this->assertInstanceOf(WP_Error::class, $result);
@@ -6213,7 +6213,8 @@ public function testGetLegacyLandingPageHTML()
 	{
 		$result = $this->api->get_landing_page_html($_ENV['CONVERTKIT_API_LEGACY_LANDING_PAGE_URL']);
 		$this->assertNotInstanceOf(WP_Error::class, $result);
-		$this->assertStringContainsString('<form id="ck_subscribe_form" class="ck_subscribe_form" action="https://app.convertkit.com/landing_pages/' . $_ENV['CONVERTKIT_API_LEGACY_LANDING_PAGE_ID'] . '/subscribe" data-remote="true">', $result);
+
+		$this->assertStringContainsString('<form id="ck_subscribe_form" class="ck_subscribe_form" action="https://app.kit.com/landing_pages/' . $_ENV['CONVERTKIT_API_LEGACY_LANDING_PAGE_ID'] . '/subscribe" data-remote="true">', $result);
 
 		// Check that rocket-loader.min.js has been removed, as including it breaks landing page redirects.
 		$this->assertStringNotContainsString('rocket-loader.min.js', $result);
@@ -6279,7 +6280,7 @@ function( $response ) use ( $httpCode, $httpMessage, $body ) { // phpcs:ignore G
 	public function mockAccessTokenExpiredResponse( $response, $parsed_args, $url )
 	{
 		// Only mock requests made to the /account endpoint.
-		if ( strpos( $url, 'https://api.convertkit.com/v4/account' ) === false ) {
+		if ( strpos( $url, 'https://api.kit.com/v4/account' ) === false ) {
 			return $response;
 		}
 
@@ -6319,7 +6320,7 @@ public function mockAccessTokenExpiredResponse( $response, $parsed_args, $url )
 	public function mockRefreshTokenResponse( $response, $parsed_args, $url )
 	{
 		// Only mock requests made to the /token endpoint.
-		if ( strpos( $url, 'https://api.convertkit.com/oauth/token' ) === false ) {
+		if ( strpos( $url, 'https://api.kit.com/oauth/token' ) === false ) {
 			return $response;
 		}
 
@@ -6393,11 +6394,11 @@ private function assertPaginationExists($result)
 	 *
 	 * @since   2.0.0
 	 *
-	 * @param   string $domain     Domain (default: convertkit.com).
+	 * @param   string $domain     Domain (default: kit.com).
 	 *
 	 * @return  string
 	 */
-	private function generateEmailAddress($domain = 'convertkit.com')
+	private function generateEmailAddress($domain = 'kit.com')
 	{
 		return 'php-sdk-' . date('Y-m-d-H-i-s') . '-php-' . PHP_VERSION_ID . '@' . $domain;
 	}
diff --git a/tests/wpunit/ResourceTest.php b/tests/wpunit/ResourceTest.php
index fa830e9..d46c6b6 100644
--- a/tests/wpunit/ResourceTest.php
+++ b/tests/wpunit/ResourceTest.php
@@ -307,7 +307,7 @@ public function testRefreshForms()
 		// did call both `get_forms` and `get_legacy_forms` methods.
 		$this->assertArrayHasKey($_ENV['CONVERTKIT_API_LEGACY_FORM_ID'], $resources);
 		$this->assertArrayHasKey('embed_url', $resources[ $_ENV['CONVERTKIT_API_LEGACY_FORM_ID'] ]);
-		$this->assertEquals('https://api.convertkit.com/api/v3/forms/' . $_ENV['CONVERTKIT_API_LEGACY_FORM_ID'] . '.html?api_key=' . $_ENV['CONVERTKIT_API_KEY'], $resources[ $_ENV['CONVERTKIT_API_LEGACY_FORM_ID'] ]['embed_url']);
+		$this->assertEquals('https://api.kit.com/api/v3/forms/' . $_ENV['CONVERTKIT_API_LEGACY_FORM_ID'] . '.html?api_key=' . $_ENV['CONVERTKIT_API_KEY'], $resources[ $_ENV['CONVERTKIT_API_LEGACY_FORM_ID'] ]['embed_url']);
 
 		// Delete resources.
 		$this->resource->delete();