Do many web sites use CSS sprites? Does it make much difference?
The use of CSS sprites is growing. In 2007, only two of the Alexa top ten U.S. web sites used sprites. Today (2009) nine of the top ten sites use sprites. It’s a recognized technique for speeding up web pages. And yet, many popular sites that could benefit from sprites don’t use them. As of September 2009, here is a list of web sites with the number of HTTP requests that could be eliminated if they used sprites: CNN (30), eBay (21), WSJ (39), and USPS (37).