Have you posted a link on Mastodon and noticed an additional "More from..." link at the bottom?
If you click this, it will take you to the Mastodon profile of the person who wrote the article or runs the site you linked to. It's a special feature designed to help journalists and website owners connect with their readers.
You can find out more about it including step-by-step instructions on how to activate it for your own articles or sites at: