* Acknowledges various challenges in data collection, such as false positives, limitations in WHOIS data, and difficulties in identifying ccTLD registrars.<ref>https://web.archive.org/web/20221206141218/https://dnsabuseinstitute.org/wp-content/uploads/2022/10/DNSAI-Compass-Methodology.pdf</ref> | * Acknowledges various challenges in data collection, such as false positives, limitations in WHOIS data, and difficulties in identifying ccTLD registrars.<ref>https://web.archive.org/web/20221206141218/https://dnsabuseinstitute.org/wp-content/uploads/2022/10/DNSAI-Compass-Methodology.pdf</ref> |