http://www.perlmonks.org?node_id=147550


in reply to Checking links with LWP::UserAgent

There's nothing wrong with your code per-se. Its just that it is checking each site sequentially; which requires a DNS lookup for each site, connect to each site, etc... What you need to do to improve performance is to be able to check multiple sites in parallel. Fortunately, there is a module that extends LWP for just this type of situation: LWP::Parallel.