mrbuttons.concoursehost.com has no NS records.
NS records for this zone are defined at concoursehost.com.
NS records for this zone are defined at concoursehost.com.
Question and response
Question
dig mrbuttons.concoursehost.com. NS
Answer
The response has no answer records.
Authority
concoursehost.com. 1800 SOA lia.ns.cloudflare.com. dns.cloudflare.com. 2398672972 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0