spf.swisscom.com NS records

NS Authoritative DNS server
10m
spf.swisscom.com has no NS records.
NS records for this zone are defined at swisscom.com.

Question and response

Question

dig spf.swisscom.com. NS

Answer

The response has no answer records.

Authority

swisscom.com. 600 SOA dns3.swisscom.com. admin\.dns.swisscom.com. 53616 21600 3600 604800 600

Additional

. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0