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The Most Popular Signature
on the Internet

First of its kind · since 2003

Live

Live signature showing your own IP address, ISP, and a random quote

This sign shows your own IP address, your provider, and your browser, rendered the moment it loads. Reload and the quote changes.

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How it worked

In 2003 this little sign did something no one had seen in a forum signature. It read your connection and drew you into the picture. Your IP address, your provider, the browser you were running, all painted into a graphic that refreshed every time the page loaded. People argued in forum threads about how a signature could possibly know where they were coming from.

The trick was simple once you saw it. The image was not an image at all. It was a program pretending to be a JPEG, reading each request and rendering a fresh sign for every viewer. It spread to message boards across the internet and, at its peak, served on the order of millions of images a day. Two decades later it still runs, on the same vipersig.jpg address it always had.

What it knows about you →