Oct 09, 2019 · The Xfinity internet speed test tool doesn’t measure the speed coming into your home, but the speed on the device running the test (like your phone, or your laptop). Xfinity’s plans are built to support the needs of many bandwidth hungry devices at the same time – sometimes too much bandwidth for a single device to handle.

Running this test could transfer over 40 MB of data, depending on your connection speed. Mobile data charges could apply. To run the test, you'll be connected to M-Lab and your IP address will be shared with them and processed by them in accordance with their privacy policy . SEND FEEDBACK SEND FEEDBACK ABOUT SPEED TEST. Speed test. Speed to: Stanford. 0 M. 25 M. 100 M. 250 M. 1000 M. 0 Mbps. Click button to begin. PING: DOWNLOAD. UPLOAD This speed test tool is not affiliated with and does not belong to Xfinity Internet or Comcast, and is provided by a third-party company named "Ookla." Please Select Last 50 results Last 100 results Last 250 results Last 500 results Last 1000 results What is download speed? Download speed is the rate at which you download a file from internet. What is upload speed? Upload speed is the rate at which one can upload a file/pic/video on integer. What is ping test? What is throughput? Throughput is the amount of data that can be transferred over your Internet connection at one point in time. The only major shortcoming of the Xfinity speed test is the fact that it does not operate on a secured connection, which is a bit of a head-scratcher these days. Still, due to their many pros and relatively few cons, Xfinity’s speed test is still an easy recommendation to make.

Oct 22, 2019 · However, when I compare the results of an Ookla speed test (speecdtest.net) with the speeds given by Comcast's own speed test, something strange happens. The Comcast speed test gives a download speed that is (a) 4 times what we are paying for and (b) almost 10 times the result of speedtest.net while both upload speed tests are pretty similar.

Test methodologies differ between speed test websites, which can cause your results to be different even if the conditions under which you're performing the test are the same. Here are some factors that can differ: 1. The location of the server being tested 2. The number of threads being used 3. How results are measured from analyzing test samples

When you're on a Comcast connection and test to a Comcast speed test server (or a speedtest.net server hosted on Comcast), you are staying within the Comcast network backbone and not crossing onto the internet. This keeps the speed test close to your local CMTS, so that we can have an end-to-end picture inside the network of where slowdowns may

Download speed is most relevant for people who are consuming content on the Internet, and we want FAST.com to be a very simple and fast speed test. What about ping, latency, upload and other things? When you click the “Show more info” button, you can see your upload speed and connection latency (ping).