ESPN is a huge site. According to Alexa, it's #17 in the U.S. and #68 worldwide. It's a HUGE site, obviously.<p>So, why does espn.com redirect to espn.go.com?<p>My first thought would be SEO/SEM. But there are countless ways to keep SEO/SEM when you change domains, and presumably Disney has the resources and manpower to make something like this happen.<p>They promote it as espn.com, so why, after 15+ years, do they still redirect to a subdomain?
I believe this is done to share a cookie across Disney owned companies (ESPN, ABC, Disney) web properties. These are <a href="http://abc.go.com" rel="nofollow">http://abc.go.com</a>, <a href="http://espn.go.com" rel="nofollow">http://espn.go.com</a> and <a href="http://disney.go.com" rel="nofollow">http://disney.go.com</a>. There are more if you look at the footer of <a href="http://go.com" rel="nofollow">http://go.com</a>.<p>This is also practiced by Yahoo for their country domains (i.e. <a href="http://www.yahoo.de" rel="nofollow">http://www.yahoo.de</a> turns into <a href="http://de.yahoo.com" rel="nofollow">http://de.yahoo.com</a>).
You could expand the question to say why do abc, disney, and espn all include go.com in their url? Obviously they all share the same ownership. Although I think there would be better ways to promote cross brand pollination.
Their information architecture is a little odd too. Back when I was looking at their jobs a year or two ago, they had a Jobs page from 2002 still up on their site with an old school design. I just checked back, and it finally redirects to their Careers page, which is on a separate domain. It seems to me that they've kind of cobbled things together as they've moved forward.<p>There may be some SEO value from keeping all of the sites on the go.com domain, but that doesn't really seem to explain it. My best guess is that if they changed it, it would break something.
Many search engines and Alexa don't discrimiate subdomains, therefore Go.com will have a super high rank and/or link weight.<p>Yahoo does the same and so many big companies.<p>I will say SEO purposes but also their whole infrastructure its quite obsolete.<p>This whole domain, sub domain or sub folder has a looong almost-philosophical debate.
This is old school portal logic. money.cnn.com animal.discovery.com<p>Go.com email shut down earlier this year, btw - <a href="http://go.com/mail/help" rel="nofollow">http://go.com/mail/help</a>