Sub Domain Redirection Help?
I had came across a rare scenario of redirection or fixing the canonical issue of sub domains - I Have a sub domain - for example http://xyz.123.com I had fixed all issues regarding redirecting the http://xyz.123.com/index.html to main sub domain (http://xyz.123.com).
When I searched for Google maps, If we type WWW.maps.Google.com its redirecting to http://maps.google.com, my question is -
Is it necessary to redirect the WWW version of sub domain (WWW.maps.Google.com) to sub domain (http://maps.google.com)? If Yes, In what way is it useful to the user and SEO aspect?
Thanks In Advance