First: your sample code is not a SSCCE. I had to add some use statements, and declare some variables to make it strict compliant. Examining the response as 
        print STDERR
           "   ERROR ${Caller}.GetWebPageWithReferer: unable to read "
+,
               $Url, " because ", $response->content, "\n";

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showed the following among others: 

Access denied | www.emsisoft.com used Cloudflare to restrict access

The owner of this website (www.emsisoft.com) has banned your access ba
+sed on your browser's signature (blahblahblah).

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I tried to supply a more friendly user agent identifier to the constructor: 

   $ua = LWP::UserAgent->new(agent => 'Mozilla');

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and voilą: it started working. It seems you might be breaking the law, though - check their Terms of use.

BTW, you might need LWP::Protocol::https to access https sites.

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

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In reply to Re: Need LWP::UserAgent --header help by choroba
in thread Need LWP::UserAgent --header help by Todd Chester

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