ns3.bytedns.com has no CNAME records.
Question and response
Question
dig ns3.bytedns.com. NS
Answer
The response has no answer records.
Authority
bytedns.com. 536 SOA vip3.alidns.com. hostmaster.hichina.com. 2026010711 3600 1200 86400 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0