At its peak, the Cypherpunks Distributed Remailer included at least seven nodes.[7] By mid-2005, al-qaeda.net ran the only remaining node.[8] In mid 2013, following a brief outage, the al-qaeda.net node's list software was changed from Majordomo to GNU Mailman[9] and subsequently the node was renamed to cpunks.org.[10] The CDR architecture is now defunct, though the list administrator stated in 2013 that he was exploring a way to integrate this functionality with the new mailing list software.[9]