checklink

checklink by w3c is by far the easiest and cheapest link checker, but is a pita to install. Here is the list:

• Install gcc zlib-dev libssl-dev
• cpan -i NET::SSLeay
• cpan -i IO::Socket::SSL
• cpan -i IO::Socket::SSL::Utils
• cpan -i LWP::Protocol::https
• cpan -i W3C::LinkChecker