Best for the four-minute break.
For a four-minute distraction between meetings, you want a useless website that loads instantly, makes its joke fast, and lets you close the tab without obligation.
Pointer Pointer delivers the cleanest example. Move your cursor anywhere on the screen and a photo of a person pointing at exactly that spot appears within two seconds. There's no gameplay, no progression, no reason to stay — but most visitors stay anyway, dragging their cursor across the screen to test how comprehensive the photo library is. (It's surprisingly comprehensive.)
Cat Bounce is the sister experience: a screenful of cat GIFs that fall, jump, and bounce when you click. It's fifteen seconds of work and zero seconds of meaningful output. Perfect for when the calendar says you have until 14:30.
The Useless Web itself is the meta-version: one big button that fires you toward another useless site at random. Tim Holman's own logs show the average visitor presses it eleven times before leaving, which sounds about right.