The AppleSources.Net Bandwidth Tester is a page that allows you to do a network speed test against our internet server.
The test has started. The results may take a few seconds to appear.
To retest - reload the page. (Ctr-F5)
If the result for UPLOAD is 4 times or more the speed you intend to send at, then it should be satisfactory for you to stream to this server. 10 times the speed or more and you will have no problems at all.