googleads.com.		30 IN SOA ns1.google.com. dns-admin.google.com. (
				742200894  ; serial
				900        ; refresh (15 minutes)
				900        ; retry (15 minutes)
				1800       ; expire (30 minutes)
				60         ; minimum (1 minute)
				)

googleads.com.		30 IN TXT "v=spf1 -all"

Name servers:
googleads.com.		30 IN NS ns4.google.com.
googleads.com.		30 IN NS ns1.google.com.
googleads.com.		30 IN NS ns2.google.com.
googleads.com.		30 IN NS ns3.google.com.