Hey!
The script nph-verify.cgi is working. But I have one prob. It stops after a while and gives no answer. How do I know which URL is bad, because the script picks up the URL randomly. It doesn't matter, if I change
$checker->in_order(1) to 0 or 1.

Please help me!

 
$checker -> in_order only applies if nph-verify.cgi is using sockets instead of LWP.

What you are experiencing is a timeout of the script. It doesn't mean that the URL is bad. Alex has said that he is re-working nph-verify.cgi and will post in the Links Announcements Forum when it is ready. Hang in there, relief is coming (hopefully).