googletagservices.com.	30 IN SOA ns1.google.com. dns-admin.google.com. (
				879543655  ; serial
				900        ; refresh (15 minutes)
				900        ; retry (15 minutes)
				1800       ; expire (30 minutes)
				60         ; minimum (1 minute)
				)

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

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