maple.verisign.com has no CNAME records.
Question and response
Question
dig maple.verisign.com. NS
Answer
The response has no answer records.
Authority
verisign.com. 10612 SOA av1.nstld.com. mdnshelp.verisign.com. 1771806155 300 7200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0