Check if comment author has url
Solution Thanks to shanebp answer here <?php if( get_comment_author() == get_comment_author_link() ) comment_author_link(); else echo ‘<a href=”https://wordpress.stackexchange.com/questions/314265/site.com/go?url=”. get_comment_author_url() .”” target=”_blank”>’. get_comment_author() .'</a>’ ?>