AutoAnything reduced page load time by 50% and saw an 12-13% increase in sales. Permalink Share on Twitter

Glasses Direct found that for every second they added to the load time, there was a 6.7% decrease in conversions. In addition, load time for users who did not convert was 3-4 times as high as for converting customers. Permalink Share on Twitter

Etam reduces it's average page load time from 1.2s to 500ms and increased conversions by 20%, time on site by 21%, and pages viewed per visit by 28%. Permalink Share on Twitter

When YouTube introduced a version of their pages that was 90% lighter, they saw a large increase in traffic in areas with poor connectivity such as Southeast Asia, South America, Africa and Siberia. Permalink Share on Twitter

Edmunds decreased load time by 77% and saw a 20% increase in page views, 4% reduction in bounce rate and 3% reduction in ad impression variance. Permalink Share on Twitter

Walmart saw up to a 2% increase in conversions for every 1 second of improvement in load time. Every 100ms improvement also resulted in up to a 1% increase in revenue. Permalink Share on Twitter

The Obama for America site improved performance by 60% and saw a corresponding increase in conversions of 14%. Permalink Share on Twitter

Netflix saw a 43% decrease in their bandwidth bill after turning on GZip. Permalink Share on Twitter

While reducing page load from 15 seconds to 2 seconds, Intuit saw a 3% improvement in conversions for every second reduced over 7 seconds, and a 2% improvement in conversions for every second reduced over 5 seconds. Permalink Share on Twitter

A presentation from AOL revealed that visitors in the top 10% of site speed viewed 50% more pages than visitors in the bottom 10%. Permalink Share on Twitter