lawschool.lexis.com has no CNAME records.
Question and response
Question
dig lawschool.lexis.com. NS
Answer
The response has no answer records.
Authority
lexis.com. 900 SOA spn5061.telecom.regn.net. hostmaster.lexisnexis.com. 1597 3600 900 2419200 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0