Re: Why is toplevel query to "zghjccbob3n0"?
I've got a github login. It seems to be associated with a list maintained by "Chris Buijs", containing top level domains that do not exist, yet are frequently queried.
From "https://github.com/cbuijs/accomplist.git"
$ git grep zghjccbob3n0 | grep -i chris | grep -vE ".{1000}"
chris/abuse-tlds.list:zghjccbob3n0
chris/dnsmasq-abuse-tld.conf:server=/zghjccbob3n0/
tlds/black.list:zghjccbob3n0 Chris-Abuse-TLDS
tlds/dnsmasq-filter.conf:server=/zghjccbob3n0/ # Chris-Abuse-TLDS
tlds/dnsmasq-regex-filter.conf:server=/zghjccbob3n0/ # Chris-Abuse-TLDS
tlds/knot-daf.conf:daf.add 'qname = zghjccbob3n0 deny' -- Chris-Abuse-TLDS
tlds/plain.skipped.invalid.domain.list:zghjccbob3n0 # Invalid-TLD-Chris-Abuse-TLDS
tlds/unbound-filter.conf: local-zone: "zghjccbob3n0" always_nxdomain # Chris-Abuse-TLDS
$