It sounds like maybe you'd be better off using system, perhaps?

With system, you get the exit status of the processed command, whereas with qx (or "backticks `...`, which are the same thing as qx) you get the "collected standard output" of the command.

Please look at perlop, specifically the section titled "qx/STRING/".  You'll see that qx is the command to use when you need to assign to the output from your system command.

With the system command, on the other hand, you care more about the side-effects of running the command (in your case, the wget to fetch webpages), and in the end, only want to know whether the command succeeded or failed.

As for your "OK" versus "Server Error" status messages -- sorry, but I don't know much about wget.  Try doing a man page on it, or googling for documentation, and see if there's a verbose flag or something that will present a more detailed failure message.