Benefits of using the "Use no-cookie Host"?

[luukee]

Curious how we can save bandwidth on our site, and I saw from GTmetrix youtube-nocookie.com was an enormous network payload. So I looked to the plugin's settings & found the "Use no-cookie Host" setting. Not sure what exactly that does for us? Will that help with the bandwidth issue?

Apologize for my lack of knowledge on this, your expertise is very much appreciated :)

• Luke