To mark its website's 20th anniversary on April 1, 2015, ESPN plans to roll out a major redesign of the site, its first in more than five years. That's a big deal considering that ESPN is among the most popular sites online, attracting 89.1 million unique U.S. visitors across desktop and mobile devices in October, up 32% from last year, according to ComScore.

Ryan Spoon, ESPN's senior VP of product development, gave Ad Age a preview of the new site last week during a crowded event at The Walt Disney Studios in Burbank, Calif.

ESPN also said during the event that it plans to rebrand its already-recently rebranded smartphone app "SportsCenter" and its tablet app "ScoreCenter" as just "ESPN." That will come, along with a new iPad app entirely, early next year, before the Super Bowl.