After several months of testing, and a lot of valuable input from the Internet community, we have made our speed-test tool available as open-source software.
We announced our speed-test beta in August 2016 and since then have been working on making the code better. That included a hackathon at Princeton University where participants got hands on with the code, and provided great feedback.
This is a full stack speed measurement solution that is open sourced, easily customizable, fully transparent, and supports both browser-based and embedded system clients. It can be used for both high-speed broadband connections, with a special emphasis on multi-hundred-megabit per second and gigabit connections, as well as slower wireless connections.
We encourage others to use the software, as well as to improve it and contribute back to the project!
If you’re a Comcast customer, you can test our implementation of the code at http://speedtestbeta.xfinity.com/.