After being postponed by a year, the XXXII summer Olympic Games kicked off on Friday with the opening ceremony.

In addition to showcasing the world's most talented and disciplined athletes, the Games offer extraordinary advertising and online traffic growth opportunities. Streaming and news sites have the chance to generate more ad revenues than usual due to an expected increase in traffic to these sites from excited followers of the games, enticing advertisers to up their spend.

Similarweb's Olympics Digital Tracker is a one-stop shop for online data coverage related to this year's Olympic Games, revealing which websites are winning the games online.

Are the Olympic Games gaining as much traction as anticipated? Which are the most followed sports? And which countries have the most loyal supporters? Read on to find out.