This is quite a complex task, that is if it is to be complete. Check out http://www.foad.org/~abigail/Perl/url2.html Jared On 4/10/06, rjamya <rjamya@xxxxxxxxx> wrote: > > Basically I am looking to isolate just the (distinct) domain name from > fully qualified domain names that you'd normally see in web-surfing. > > I am working on couple of techniques, but it gets complicated since > TLDs differ in format and there is only so much you can do with > substr(). > > sample data ... > > a836.v8519e.c8519.g.vm.akamaistream.net > a705.l1923962123.c19239.n.lm.akamaistream.net >