I'm trying to find out what website that offers bandwidth testing has the most accurate results. I've tried http://www.dslreports.com/stest , http://bandwidthplace.com/speedtest/ , cnet's bandiwidth meter, and a few others. I always get different readings. I got an email from comcast that they upgraded the download rate, for their customers who also get cable tv from them, from 4MBps to 6MBps, so I'm trying to verify that.