diff --git a/src/wp-includes/deprecated.php b/src/wp-includes/deprecated.php
index 5e5c19f17c..dbdc7217bf 100644
--- a/src/wp-includes/deprecated.php
+++ b/src/wp-includes/deprecated.php
@@ -3457,3 +3457,30 @@ function format_to_post( $content ) {
 	_deprecated_function( __FUNCTION__, '3.9' );
 	return $content;
 }
+
+/**
+ * Determines if the URL can be accessed over SSL.
+ *
+ * Determines if the URL can be accessed over SSL by using the WordPress HTTP API to access
+ * the URL using https as the scheme.
+ *
+ * @since 2.5.0
+ * @deprecated 4.0.0
+ *
+ * @param string $url The URL to test.
+ * @return bool Whether SSL access is available.
+ */
+function url_is_accessable_via_ssl( $url ) {
+	_deprecated_function( __FUNCTION__, '4.0', '' );
+
+	$response = wp_remote_get( set_url_scheme( $url, 'https' ) );
+
+	if ( !is_wp_error( $response ) ) {
+		$status = wp_remote_retrieve_response_code( $response );
+		if ( 200 == $status || 401 == $status ) {
+			return true;
+		}
+	}
+
+	return false;
+}
diff --git a/src/wp-includes/functions.php b/src/wp-includes/functions.php
index 512d5c4baa..ee1bca2172 100644
--- a/src/wp-includes/functions.php
+++ b/src/wp-includes/functions.php
@@ -3001,41 +3001,6 @@ function absint( $maybeint ) {
 	return abs( intval( $maybeint ) );
 }
 
-/**
- * Determines if the blog can be accessed over SSL.
- *
- * Determines if blog can be accessed over SSL by using cURL to access the site
- * using the https in the siteurl. Requires cURL extension to work correctly.
- *
- * @since 2.5.0
- *
- * @param string $url
- * @return bool Whether SSL access is available
- */
-function url_is_accessable_via_ssl($url)
-{
-	if ( in_array( 'curl', get_loaded_extensions() ) ) {
-		$ssl = set_url_scheme( $url, 'https' );
-
-		$ch = curl_init();
-		curl_setopt($ch, CURLOPT_URL, $ssl);
-		curl_setopt($ch, CURLOPT_FAILONERROR, true);
-		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
-		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
-		curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
-
-		curl_exec($ch);
-
-		$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
-		curl_close ($ch);
-
-		if ($status == 200 || $status == 401) {
-			return true;
-		}
-	}
-	return false;
-}
-
 /**
  * Marks a function as deprecated and informs when it has been used.
  *