shared-counts-example-3.php

<?php

/**
 * Shared Counts - Change URL
 */
function sitecare_change_share_url( $url = false ) {
	// Make it protocol-agnostic, for preserving http requests
	$new_url = '://www.NEWURL.com';

	$url  = $url ? esc_url( $url ) : home_url();
	$home = str_replace( array( 'http://', 'https://' ), '://', home_url() );
	$url  = str_replace( $home, $new_url, $url );

	return esc_url( $url );	
}

/**
 * Use Different URL for Share Count link
 */
function sitecare_change_url_share_count_link( $link ) {
	// Update the link.
	$link = sitecare_change_share_url( get_the_permalink( get_the_ID() ) );
	return $link;
}
add_filter( 'shared_counts_link_url', 'sitecare_change_url_share_count_link' );