Your problem is that you're single-quoting '$whereto' which tells Perl to literally use $whereto which is not a valid URL. Put it in "double quotes".

Also, if all you're interested in is whether or not the URL is "OK" (i.e. giving a 200-series response), consider using HEAD instead of GET, and verify the response is "good" with is_success like you're doing. HEAD will return the same HTTP response but without retrieving content. Properly written CGI scripts, for instance, can avoid having to do a lot of unnecessary work with HEAD requests if all you're interested in is a success/failure. At a minimum you're saving bandwidth.

It might do you good to print out the $res response, so you know why it failed.


In reply to Re: Checking URLs with LWP::UserAgent by Fastolfe
in thread Checking URLs with LWP::UserAgent by MintyFresh

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.