http://magma.ua4vjlx72wv5crhkificaeysp62hizhazipfshsdvs6jxqvhtkpllcad.onion/guide/osint-sources.html
DNS Census 2013 - A public
dataset of registered domains and DNS records that contains approximately 2.5
billion DNS records gathered from 2012-2013. Domains Index datasets -
A list of zone files available for free download. DNSApe - A collection of (mainly) DNS and other
network tools. # IPs AbuseIPDB - IP address abuse report
checker.