What is a favicon? A favicon is the small picture a browser shows next to a page's title: on its tab, in bookmarks and in history. It is often a logo.
Your favicon now shows on your landers too. Upload it in your "Appearance" settings. Until now it showed only on your portfolio website.
Where it shows. Your favicon shows where the address bar shows your own domain name. That means your portfolio website on its own domain, and the landers of domains that use the masked redirect. Domains that use the visible redirect send visitors to NamePros, where the NamePros icon shows.
Your choice. Two tick boxes in your "Appearance" settings decide where it shows: "On your portfolio website" and "On your landers". Both are ticked unless you change them. Each domain can make its own choice for its lander in its "Appearance" settings, and the CSV export and import carry that choice in the "Favicon on lander" column.

