+ If you use --no-append-root and your nameservers are rooted, you
+ must remember to supply the trailing dot yourself. Otherwise, you'll
+ get false positives.
+ .
+ @
+ $ haeredes --no-append-root \
+   a.iana-servers.net b.iana-servers.net \
+   <<< \"example.com\"
+ Domain \"example.com\" delegates somewhere else: \"b.iana-servers.net.\" \"a.iana-servers.net.\"
+ @
+ .