ns4.bytedns.com has no NS records.
NS records for this zone are defined at bytedns.com.
NS records for this zone are defined at bytedns.com.
Question and response
Question
dig ns4.bytedns.com. NS
Answer
The response has no answer records.
Authority
bytedns.com. 600 SOA vip3.alidns.com. hostmaster.hichina.com. 2025121011 3600 1200 86400 600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0