If you want more extensive testing of those webpages look into HTTP::WebTest. It will not only verify the existance of a webpage, it will also check for the existance of a returned string or regex.

It also allows for external files with config information so you can setup as many pages as you want all with different criteria quickly. It will handle authentication, cookies, testing return time, and SSL. There is also a cookbook for the module.

an example of a config file:

test_name = Web cam page page
        url = www.the-site-I-want-check.com
        text_require = ( <img src="image.jpg"> )
        regex_require = /^<a href="http:\/\/www.yahoo.com\/d+"/
        text_forbid  = ( Premature end of script headers
                         an error occurred while processing this direc
+tive)        
        min_bytes = 13000
        max_bytes = 99000
        min_rtime = 0.010
        max_rtime = 30.0
    end_test
[download]

grep

Just me, the boy and these two monks, no questions asked.