ehs.zerotimeservices.com has no NS records.
NS records for this zone are defined at zerotimeservices.com.
NS records for this zone are defined at zerotimeservices.com.
Question and response
Question
dig ehs.zerotimeservices.com. NS
Answer
The response has no answer records.
Authority
zerotimeservices.com. 3600 SOA ns1.zerotimeservices.com. postmaster.zerotimeservices.com. 2025102801 3600 3600 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0