Apple's online site remains among the top 50 US sites in June, according to Media Matrix.

Ranked in 31st place, research released today reveals Apple's site to have attracted 17,055,000 unique US visitors in June. It remains the most-visited computer manufacturer's site.

Closest competitor Dell attracted 13,816,000 visitors that month. This is revealed to be a 20 per cent increase in traffic. The results catapulted the PC company from 58th (in May) to 45th place, the research reveals.

US surfers also went online to find travel, sporting and cooking information they could use this summer, the research reveals.