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Speed Test requires at least version 8 of Flash. Please update your client.

Speed Test
Speed Test measures your Internet connection speed. You can choose to test your connection speed to our servers in Texas or Colorado.
Download is a measure of how fast your connection delivers content to your computer. Upload is the measure of how fast content is delivered from your computer to others on the Internet. We provide the results of your test in kilobits per second (kbps) and kilobytes per second (KB/sec). There are 8 bits in a byte, so we divide kbps by 8 to get KB/sec.
You should review your contract with your ISP to ensure you are getting both the download speed as well as the upload speed they promised.