Digibutter.nerr

digibutter.nerr is a nerdy website that Francis from Super Paper Mario visits rapidly. It is apparently a forum filled with geeks and nerds of all sorts who seem to love butterflies. Francis declares that he shall take 'HI-TECHNICAAAAL' pictures of Tippi, whom he calls Francine, and post them all over the forum.

If one was to search this address in real life, they would find a Super Paper Mario forum.