Experian Hitwise took a loot at the early growth of Google+. According to Hitwise report, the week ended July 16, the Google+ domain (plus.google.com) was having a total of 1.8 million estimated visits (not visitors). However, that number was up 283% from the previous week, and up 821% from the week before. On a daily basis, the estimated visits peaked last Thursday on July 14 with 317,000 estimated daily visits, and was settled down to 226,000 by July 18th, the last day of the data set.
Hitwise says Google+ is the No. 42 social networking site in the U.S., and No. 638 overall. The week before it was ranked No. 2,404 among all sites in the U.S.
Hitwise reports suggest that despite the millions of registered users, only a small percentage are actually using the site. The 1.8 million is the "visits," and to get an estimate of acutal user, you'd have to divide it, which Hitwise doesn't provide.
The majority of traffic to Google+ which at 56% is coming from other Google properties, with Google search accounting 34%. Another 21% comes from email. The combination of Google and Gmail accounted for over 50% of all upstream traffic to Google+ last week, with additional referrals from other Google properties like YouTube and Google Profiles. Facebook ranked 3rd among websites visited immediately before Google+, not surprising since many social network users tend to maintain multiple accounts, especially to experiment with new social networks.
Hitwise also sheds some light on the gender breakdown of Google+ users, with 57% of them being male for the four weeks ended July 16th. Users are also getting older, with 38% being between 25 and 34 years old for the last week, edging out the 18 to 24 year olds who made up the largest user group the week before.
The top cities for Google+ users are, in order, LA, New York, and San Francisco.
Here’re some graphs of Hitwise study: