Domain doesn't work without `www`

Question

When I type in my domain name like without the www (like http://example.com), it doesn\'t work and gives error message. However, when I add the

Answer 1

to solve this issue

-> suppose you want mysubdomain.domain1.com

-> goto your dns records settings in your web panel ( cpanel , vestapanel etc ) of domain1.com

-> add there new A record with ip of your domain1.com and fill record/hostname field with @ // @ mean no www if you want www too then add another new A record and replace @ with www

-> save it

-> wait for dns changes to take place maybe take few hours