Judging from this and your other post, I think someone should point out that we are not here to write your programs for you, but rather to provide help on concrete problems. Some effort on your part should be put into a question, at the very least a description of what exactly you're trying to achieve. Read How (Not) To Ask A Question for more on this topic.

Just for laughs, here's a one-liner that will monitor the status of a website (for a certain definition of "monitor"). Read the perldocs for the modules invovled and you'll be well on your way to writing your own, more production-suitable, version.

perl -MLWP -e 'print LWP::UserAgent->new->request(HTTP::Request->new(G
+ET=>"http://example.com"))->is_success()?"up\n":"down\n"'
[download]

Based on your questions about monitoring, you might want to read the book Perl for System Administration

nagios

"Perl Script for monitoring a Website"

It would also help if you listed what you wanted to monitor, visits, page hits or IP addresses or any number of things, if that's what you after this node may help web statistics.

Now that I've answered the question you asked, did you have a more meaningful question that you intended?