Really are there websites that use user agent protection?

lainsafecli

@@ -86,6 +86,10 @@ die "Give a file\n" unless defined $file;
 
 my $url_to_upload = $DEFAULT_SERVER . "/upload.cgi";
 my $req;
+
+# Fake user agent
+$ua->agent("Mozilla/5.0 (X11; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0");
+
 # check if server is running lainsafe
 
 if(!$ua->get($url_to_upload)->is_success)