relay02.cwshs.com has no NS records.
NS records for this zone are defined at cwshs.com.
NS records for this zone are defined at cwshs.com.
Question and response
Question
dig relay02.cwshs.com. NS
Answer
The response has no answer records.
Authority
cwshs.com. 600 SOA ns.cgi.com. dnsops\.gto.cgi.com. 791334916 1200 180 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0