Proven Accurate, No Scam internet speed test

Hey guys, i need a internet speed test that has been proven not to be a scam test like speedtest.net

If the number one speed test says the same thing as speedtest.net then i know the reason my internet is slow is on my end.

Verizon has these that I use sometimes:

http://infospeed.verizon.net/speedtest/speedtest500k.asp

http://my.verizon.com/micro/speedtest/broadband/