Suppose you're starting a new web site with the (completely made up name) of "El Niño." Some obvious options for your domain name would be:
And typically, of course, you'd want both.
But what is the best practice when it comes to domain aliases, etc?
In a perfect world, I think I would want elniño.com to be the primary domain, with elnino.com re-directing (probably via DNS, possibly via HTTP redirects--whatever) to the primary.
But can this this break anyone with an old browser? Does it affect SEO or have any other secondary effects? If so, are there work arounds other than using the strict Latin domain name as the primary?