Some retailers launched online deals well in advance of Thanksgiving, Black Friday and Cyber Monday.
Amazon.com and BestBuy.com placed first in high broadband availability tests among large retailers, says Gomez.
Amazon.com and BestBuy.com placed first in high broadband availability tests among large retailers in January, says Gomez, the web performance division of Compuware Corp. Last month, online shoppers using Internet Explorer could access Amazon.com 100% of the time. BestBuy.com averaged 99.98% availability in Firefox testing.
CDW.com, Macys.com and JCPenney.com tied for second in Internet Explorer tests with an average availability of 99.99%, while OfficeDepot.com, QVC.com and Walmart.com posted a 99.98% availability score.
In Firefox testing, VictoriasSecret.com and Williams-Sonoma.com placed second with 99.95% availability. Gap.com (99.94%) came in fourth while Apple.com, JCPenney.com and QVC.com posted a 99.93% availability score.
The average Internet Explorer availability for the 23 retailers measured in January was 99.91%, Gomez says. The average Firefox availability for the same group of retailers last month was 99.75%.