How do you feel about '(http://|https://)?([^/]*\.)?(?P<url>[^/]*\.[^/]*)' ?

Using it I was able to get 'my.jobs' from 'my.jobs', 'www.my.jobs', 'secure.my.jobs', 'domain.domain2.my.jobs', and 'http://domain.domain2.my.jobs/lots/of/stuff.including.periods/'. I'm pretty confident from those matches that it should be ok, but I haven't worked with re much.