Question and response
Question
dig f.qtlcdncn.info. CSYNC
Answer
The response has no answer records.
Authority
qtlcdncn.info. 300 SOA g.qtlcdncn.info. webmaster.qtlcdncn.info. 1591778141 7200 3600 64800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0