Don't think so. AFAIK the transfer of the complete URL is already encrypted.
Now that I think about it, only the host name part of the URL would be visible to an eavesdropper on a network.
https://eligius.st/~wizkid057/newstats/userstats.php/1zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzSo my bad on that one :-/.
The other way someone could take a guess at which address was yours was if they knew what hashrate you were hashing at. If that were the case then they could merely visit
http://eligius.st/~wizkid057/newstats/topcontributors.php and work out which one was yours.