<p>daily curated screengrabs and other miscellanea of our favorite little guy! visit this page in normal web view to see links. see pinned post for about page.</p>
https://columboscreens.tumblr.com/tagged/columbo/rss
What you're looking at is an RSS feed that's been converted into an account that Mastodon (or any other ActivityPub social network) can subscribe to. Put the username above into your user search and you should be able to find this feed and subscribe! Click here to make an ActivityPub account for your favorite RSS feeds.