Safe, Private, Easy Way to Test Connection Speed?

[Moltke]

Hi, learning user for Linux and Linux Lite here. I am wondering what is the best, most private, and easy way to test Internet connection speed? I have concerns re: speedtest.net as it apparently collects much data. Is there a good way to run a utility, preferably with a GUI, that tells me how fast a connection is?

Thanks!

Editing to add: I am hoping to get the Mbps max download speed of a new connection, like what Speedtest.net does, only more private. I tried CBM (Color Bandwidth Meter), but it seems to be just monitoring the speed of current usage, unless I understand it wrong.

You have to ask yourself, how does a net speed test work? And it al comes down to this; in order to test the speed of any connection such a tool have to upload and download files to and from your computer, knowing that, I  think whatever tool/gui that may exists out there will do just the same; collect data to test your internet speed.

https://help.speedtest.net/hc/en-us/arti...liseconds).

https://www.howtogeek.com/426757/how-do-...-are-they/

https://www.ncta.com/whats-new/how-do-in...sts-work-2

As alternatives to speedtest.net

https://alternativeto.net/software/speed-test/