cdns3.netactuate.com has no CNAME records.
Question and response
Question
dig cdns3.netactuate.com. NS
Answer
The response has no answer records.
Authority
netactuate.COM. 1254 SOA brad.ns.cloudflare.COM. dns.cloudflare.COM. 2397111840 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0