You'd have to use something like LWP::UserAgent, which is a part of libwww.
And then you'd need some code like this: 
require LWP::UserAgent;

my $ua = LWP::UserAgent->new(timeout => 30);
my $headRequest = HTTP::Request->new(HEAD => 'http://google.com/');
my $headResult = $ua->request($headRequest);
print $headResult->header('Content-Length')

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In reply to Re: Content Length by Jaap
in thread Content Length by Anonymous Monk

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