Keynote Systems today released its mobile News and Portal Index data for June 2011, which saw just one site, MSN, demonstrate an increase in average performance.
Average homepage load time in June of the same 14 sites used in past months decreased by 2.14 seconds to 15.22 seconds. The average success rate of the same 14 sites dropped by 0.78 percentage points to 97.46 percent.
From May to June only one site had an increase in average performance; MSN increased average performance by 0.54 seconds to 17.56 seconds. MSN also showed improvement in its success rate, gaining 0.3 percentage point to 98.22 percent.
At the beginning of June, six news sites were added to the News and Portal index: ABC news, CBS news, FOX news, Google news, MSNBC, and Washington Post. While the Google home page is already in the News and Portal index, Keynote Systems also included Google News. Google News delivers news content aggregated from multiple sources on the Internet. The Mobile News and Portal index now has a total of 20 popular sites U.S. sites.
Facebook continued to have the fastest page load time three months in a row with 4.22 seconds.
Google had the second fastest with 5.65 seconds and Bing had the third fastest with 7.14 seconds.
New addition site MSNBC had the highest success rate with 99.01 percent. The Weather Channel had the second highest success rate with 99 percent, and Yahoo! had the third highest success rate with 98.93 percent.
Keynote Systems monthly Mobile News and Portal Index is a Wireless Week exclusive that measures the performance of various mobile websites. Keynote repeatedly tests the sites in the index hourly and around the clock from four locations over the four largest U.S. wireless networks, emulating the browsers of four different devices: the iPhone 4 on AT&T, the HTC Evo (Android) on Sprint, the Motorola Droid X (Android) on Verizon Wireless and the BlackBerry Curve on T-Mobile USA.
Data is collected from San Francisco, New York, Dallas and Chicago and then aggregated to provide an overall monthly average in terms of both speed and reliability.
See the full results for June in the charts below: