blog.pixum.de has no NS records.
NS records for this zone are defined at pixum.de.
NS records for this zone are defined at pixum.de.
Question and response
Question
dig blog.pixum.de. NS
Answer
The response has no answer records.
Authority
pixum.de. 300 SOA ns-cloud-a1.googledomains.com. cloud-dns-hostmaster.google.com. 1 21600 3600 259200 300
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0