tools.megapath.net has no CNAME records.
Question and response
Question
dig tools.megapath.net. NS
Answer
The response has no answer records.
Authority
megapath.net. 300 SOA ns1.megapath.net. support.megapath.net. 1752847752 14400 3600 2718281828 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0