Yahoo took over from Google as the most visited web portal back in August 2013 and has continued its lead through to the end of the year.
New figures from industry tracker Comscore show that Yahoo websites logged slightly under 195.2 million unique visitors in December, and Google, which came in at second place, experienced about 192.3 million unique visitors.
ComScore lists the total desktop internet audience in the US at over 224 million unique users, and said Microsoft came in at third place, with 175 milllion unique users.
The news is more positive signs for still-fresh Yahoo chief executive Marissa Mayer, who jumped ship from Google in 2012, and fired her number two, Henrique de Castro last week.
Yahoo is still way behind Google though in the revenue stakes, and Google still largely owns the mobile ad revenue market, along with Facebook.
One potential other problem for the company is Tumblr, Yahoo's social media site that it acquired for $1.1 billion in mid-2013, which has negligible revenue and has seen its traffic plateau.
In May, the month the deal was announced, Tumblr reached an audience of 47.49 million users across desktop and mobile, according to comScore. As Forbes reported only once in the subsequent six months, in July, did its traffic exceed that level.
Asked about the audience trend, a Tumblr spokeswoman cautioned against reading too much into the comScore data. Via email:
Comscore does not fully capture mobile traffic, as it does not include in-app traffic (and that number you reference also only accounts for US). For Tumblr, 1 in 2 active users access Tumblr content through the mobile app. In addition, in the past year we’ve seen a 55% total engagement growth and on mobile this number is 251% growth.
Forbers reported Yahoo shares were down more than 2% to $US39.06 in afternoon trading on the Nasdaq exchange in New York City.
Check out Comscore's full list here.