DNS configuration for apex url is not as simple as one might expect…
A CNAME can’t be setup in the DNS for an apex url like gizur.com, only A record can be used.
CloudFront and Route 53 do not support apex urls at the moment. There is some support for Route 53 and ELB though.
http://wwwizer.com/ can be used though, just setup an A record pointing to 22.214.171.124. Not sure how well this scales but it should work small scale.