Use * syntax for faster search
Page History
...
We automatically match the common subdomain "www" even without adding the *, so if you include "domain.com" in a EXCLUDE list, you will automatically exclude "www.yahoodomain.com" as well.
You can also match top level and second level domains for either inclusion or exclusion. For example, "*.org" will match any ".org" site, and "*.co.uk" will match any ".co.uk" site.
...