If you don't know what is a cookie please search on google. You should know about the internet more for security concerns and it's your right to know.
As far as I have seen almost every website(i.e., Google, Facebook, etc.) uses cookies. Because they have to, that is how this ecosystem works.
Of Course, Your information stays safe with us. Still, if you want to ignore cookies use VPN, disable cookies, and other options in your browser.