Between July 2011 and July 2012 Tumblr’s monthly unique visitor count increased by 100 percent to 26.9 million, Marketing Land reported.

This puts Tumblr, the five-year-old microblog founded in New York, neck and neck with Pinterest which collects more than 23 million uniques a month, according to statistics from Site Analytics which tracks how many visitors sites collect in the U.S.

In July, Tumblr collected 6.7 million mobile visitors and 24 million search visits.

Tumblr currently hosts 74 million blogs and 31 billion posts. It collects about 100,000 new blogs every day.