http://www.wired.com/2016/04/average-webpage-now-size-original-doom/

Today the average webpage is about the same size, data-wise, as the classic computer game Doom, according to software engineer Ronan Cremin.

A compressed copy of the installer for the shareware version of Doom takes up about 2.39MB of space. Today’s average webpage, meanwhile, requires users to download about 2.3MB worth of data.