Reason is simple:
C:\Users\Me>ping hulu.com
PING hulu.com [23.63.99.184]
C:\Users\Me>ping -a 23.63.99.184
PING a23-63-99-184.deploy.static.akamaitechnologies.com [23.63.99.184]
The hulu.com is hosted on akamai servers, so reverse DNS lookup returns akamaitechnologies.com domain instead of hulu.com. NTA obtains hostnames/domains using reverse DNS lookup as NetFlow only provides IP addresses.
(netflix.com reverse to netflixfreetrial.com)