Protection for Lame Delegation (Dangling NS records)

cloudsec.cisco.com.     1800    IN      NS      ns-9.awsdns-01.com.
cloudsec.cisco.com.     1800    IN      NS      ns-969.awsdns-57.net.
cloudsec.cisco.com.     1800    IN      NS      ns-1248.awsdns-28.org.
cloudsec.cisco.com.     1800    IN      NS      ns-1911.awsdns-46.co.uk.

from Sat Jan 25 15:19:22 UTC 2025 by @gr3.ie