The intro includes flashing lights; if you have epilepsy do not play it.
Some well-known pages appear in the intro. All of these pages are mere screenshots made at
0:00; 27.11.2012 (CET)
Their contents and the pages themselves are irrelevant.
They simply represent "many of the well-known and most popular internet sites"
(Check the source code of this page for the full list of them.)