Is it possible to forward firstdomain.com to www.seconddomain.com or seconddomain.com using purely DNS records? I know how to forward www.firstdomain.com to seconddomain.com (using a CNAME).What I am trying to do is move my site from one domain to another (new) one, and not break all the links that use the old domain name. I can't do a 301 redirect as it's hosted on GitHub Pages and I don't have access to the web server.
Forwarding non-www domain to other domain using DNS
redirects;dns;301 redirect;cname;github