On a real Tree of Life page, this link would have taken you to the page for the immediately Containing Group.
The page of the containing group is the page that shows your group as one of the terminal taxa in its tree or taxon list. For example, in the piece of the ToL shown below, Aliopinae is the containing group for Aliopo, Titanotila, and Eromaba, and Aliopo is the containing group for the four species of Aliopo: