ChicagoFan67 - 9:20 am on May 2, 2010 (gmt 0)
I have an image site. About 2 weeks ago I installed the browser speedtool add-on recommended by Google and I took the advice to "leverage browser caching". I also scaled some images on the homepage as suggested. I'm starting to see the graph in WMT level out at 2.6 sec. This is down from about 3.9 seconds 2 weeks ago. With browser caching enabled my site's homepage loads in under 1 sec for me. Is this type of data included in googles calculation?