Nimbostratus Bot Nimbostratus Bot is a bot devoloped by Cloud System Networks. Latest user agents:Mozilla/5.0 (compatible; Nimbostratus-Bot/v1.3.2; http://cloudsystemnetworks.com),gzip(gfe)Mozilla/5.0 (compatible; Nimbostratus-Bot/v1.3.2; http://cloudsystemnetworks.com)