LAN　Speed Test

sudo apt install gnupg1 apt-transport-https dirmngr
export INSTALL_KEY=379CE192D401AB61
export DEB_DISTRO=$(lsb_release -sc)
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys $INSTALL_KEY
echo "deb https://ookla.bintray.com/debian ${DEB_DISTRO} main" | sudo tee  /etc/apt/sources.list.d/speedtest.list
sudo apt update
sudo apt install speedtest

Speedtest.net

Speedtest by Ookla - The Global Broadband Speed Test

Ookla®, Speedtest®, and Speedtest Intelligence® are among some of the federally registered trademarks of Ookla, LLC and may only be used with explicit written permission. © 2006-2019 Ookla, LLC. All Rights Reserved

https://www.speedtest.net/

Korea Speed Test

NIA 스피드 인터넷 속도측정

http://speed.nia.or.kr/qmspeed/speedtest.asp