Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '2a05:d050:404c::'
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ERRNo PTR record availible DNS server 'x4.amazonaws.org' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.c.4.0.4.0.5.0.d.5.0.a.2.ip6.arpa'.