o18.ptr4232.mediaslide.com has no NS records.
NS records for this zone are defined at mediaslide.com.
NS records for this zone are defined at mediaslide.com.
Question and response
Question
dig o18.ptr4232.mediaslide.com. NS
Answer
The response has no answer records.
Authority
mediaslide.com. 300 SOA ns-cloud-b1.googledomains.com. dns-admin.google.com. 2 21600 3600 1209600 300
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0