December 27, 2011, 4:16 PM

A little bit goes a long way

The Home Depot makes a big jump in the Keynote Mobile Commerce Performance Index.

Lead Photo

Better availability improved the retailer's mobile commerce site performance this week.

Every little bit helps. That might be the lesson The Home Depot learns from this week’s Keynote Mobile Commerce Performance Index. The building materials retailer moved up 14 positions to No. 9 in the ranking for the week ended Dec. 25.

An almost 2% increase in the Home Depot’s mobile commerce site availability is a big part of reason for the improved performance, says Joe Flake, mobile and web performance expert at mobile and web performance management firm Keynote Systems Inc. The Home Depot, No. 43 in the Internet Retailer Top 500 Guide, did not respond to a request for comment about its m-commerce site performance.

The five best performing mobile commerce sites were Victoria’s Secret, No. 18 in the guide, with an average load time of 3.84 seconds and a success rate of 99.31 for a top score of 976. In second,, a division of Sears Holdings Corp., No. 7, had a load time of 3.3 seconds and a success rate of 99.18 for a score of 974., No. 393, came in third and had a load time of 4.48 seconds and a success rate of 99.31 for a score of 962., No. 2, came in fourth with a load time of 5.64 seconds and a success rate of 99.35 for a score of 941., No. 11 in the guide,, in fifth, had a load time of 5.45 seconds and a success rate of 99.2 for a score of 928.

Both and had improvements in page load times and overall availability compared with the week prior, Flake says.

The average load time for all 30 retailers on the index was 8.83 seconds, the average success rate was 98.38% and the average score was 765.

Click here and then click on Keynote Mobile Commerce Performance Index Part 1 and Part 2 to see this week’s complete results for all 30 retailers on the index.

Keynote Systems measures 30 representative m-commerce sites exclusively for Internet Retailer. The sites include merchants in various categories and channels, and of various sizes, ranging from such giants as Inc., Sears Holdings Corp. and Inc., to midsized retailers like Sunglass Hut and LLC. Keynote tests the sites in the index every hour Monday through Sunday from 8 a.m. through midnight Eastern time, emulating four different smartphones on four different wireless networks: Apple Inc.’s iPhone 4 on AT&T, the HTC Evo on Sprint, the BlackBerry Curve on T-Mobile and the Droid X on Verizon. The HTC Evo and the Droid X run Google Inc.’s Android operating system. Keynote runs the tests in Chicago, Dallas, New York and San Francisco.

Keynote combines a site’s load time and success rate, equally weighted, into a single score. Given that both performance and availability are important, the score reflects the overall quality of the home page; a higher score indicates better performance. Scores also reflect how close sites are to each other in overall quality. The index average score is the midpoint among all the sites’ scores.

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