d279wn0r5doaz5.cloudfront.net has no SRV records.
Question and response
Question
dig d279wn0r5doaz5.cloudfront.net. SRV
Answer
The response has no answer records.
Authority
d279wn0r5doaz5.cloudfront.net. 60 SOA ns-388.awsdns-48.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0