Check the Mbit rates of different providers?

Physikfan, Sat Nov 18 2017, 11:34AM

Hello to all IT insiders

My question:

I currently have access to Internet boxes different providers at the same location.
How can I reasonably objectively check the Mbit rates of different providers?

Please the answers in understandable language for non-professionals in digital electronics!!!

Best regards

Physikfan