I have a question about step 1: General settings

i bougt my domain name without www.

this is my domein : dijitalpazarlamagirisimcilikplatformu.com

Now is my question:

should I use the the domain with www. or without www.

Can i publish my website without www. and can i do that by stap 1: General - website url

just like this: http://dijitalpazarlamagirisimcilikplatformu.com

wat is the best choise and what can i do best?

Thank you..