OOKLA isn't that reliable for speed testing, they let companies who pay mess with the results, some ISPs who sense your going to ookla give you better bandwidth, etc.
look at the link : :https://www.reddit.com/r/HomeNetworking/comments/42zh66/what...
Search for ookla, or just read the thing for speedtest recommendations.
Recommendations:
http://speedof.me
google supported tool:
http://www.measurementlab.net/tools/ndt ,
http://www.measurementlab.net/tests - various types of tests