Zone apex
Start of authority
Email
Serial
679234881
Refresh
6h
Retry
1h
Expire
28d
Negative cache TTL
1h
Question and response
Question
dig spf.gwdg.de. SOA
Answer
The response has no answer records.
Authority
gwdg.de. 60 SOA dns1.gwdg.de. hostmaster.gwdg.de. 679234881 21600 3600 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0