Introducing CNAME Flattening: RFC-Compliant CNAMEs at a Domain's Root04/03/2014 This post is about a new feature we've been quietly rolling out over the last few months. Last week we began enabling it for everyone by default. It's called CNAME Flattening and it's a bit geeky, but very useful and important if you’re using cloud-based services and you hate having a “www” subdomain. The gist is: you