I was sent a link recently http://www2.biotech.wisc.edu/I've occasionally noticed this appear in some web addresses, where does the 2 come from? Does it mean anything? How would I go about getting a www2 web address if I wanted one?
URLs which begin www2
domains;subdomain
To answer the last question - if you have a domain then you can set up any subdomains you like www2.domain.com, www3.domain.com etc.