<https://xomisse.com/blog/nofollow-navigation/#primaryimage>
<http://schema.org/contentUrl>
<https://xomisse.com/wp-content/uploads/2018/03/How-to-add-nofollow-links-in-WordPress-navigation-menus-and-make-navigation-links-open-in-new-tab-or-window.png>
<https://xomisse.com/blog/nofollow-navigation/>