Sports fans were glued to it during the Super Bowl. Millions used it to track American election night results. In the morning, the president of the United States sends a daily missive in the form of a tweetstorm.

“You don’t go a day without hearing about Twitter,” Jack Dorsey, the company’s chief executive, said on a conference call with investors Thursday morning.

There is just one problem: For all of its influence, Twitter cannot seem to capitalize on its wide reach.

The company reported disappointing earnings on Thursday, with sales totaling $717 million in the fourth quarter, up only about 1 percent compared with a year ago. That fell far short of analysts’ expectations of $740 million. Twitter lost roughly $167 million over that period, or 23 cents per share, from a loss of about $90 million in the quarter last year.