ALL A AAAA CAA CNAME MX NS PTR SOA SRV TXT ANY

PTR records for 176.97.158.100:

Record	Type	Value	TTL
100.158.97.176.in-addr.arpa	PTR	ns2.dynanet.ch.	1760
100.158.97.176.in-addr.arpa	PTR	sec.rcode0.net.	1760
100.158.97.176.in-addr.arpa	PTR	d.ns.unihost.eu.	1760
100.158.97.176.in-addr.arpa	PTR	ns2.cid.de.	1760
100.158.97.176.in-addr.arpa	PTR	sec2.rcode0.org.	1760
100.158.97.176.in-addr.arpa	PTR	sec2.rcode0.net.	1760
100.158.97.176.in-addr.arpa	PTR	sec2.rcode0.at.	1760
100.158.97.176.in-addr.arpa	PTR	lisa.goeast.com.	1760
100.158.97.176.in-addr.arpa	PTR	ns2.nic53.de.	1760
100.158.97.176.in-addr.arpa	PTR	ns2.comteam.at.	1760
100.158.97.176.in-addr.arpa	PTR	d.itconsult-dns.co.uk.	1760
100.158.97.176.in-addr.arpa	PTR	homer.goeast.ch.	1760
100.158.97.176.in-addr.arpa	PTR	ns2.ebit.at.	1760
100.158.97.176.in-addr.arpa	PTR	sec2.rcode0.com.	1760
100.158.97.176.in-addr.arpa	PTR	ns2.vaiadigital.net.	1760

id 62567, opcode QUERY, rcode NOERROR, flags QR RD RA
;QUESTION
100.158.97.176.in-addr.arpa. IN PTR
;ANSWER
100.158.97.176.in-addr.arpa. 1760 IN PTR ns2.dynanet.ch.
100.158.97.176.in-addr.arpa. 1760 IN PTR sec.rcode0.net.
100.158.97.176.in-addr.arpa. 1760 IN PTR d.ns.unihost.eu.
100.158.97.176.in-addr.arpa. 1760 IN PTR ns2.cid.de.
100.158.97.176.in-addr.arpa. 1760 IN PTR sec2.rcode0.org.
100.158.97.176.in-addr.arpa. 1760 IN PTR sec2.rcode0.net.
100.158.97.176.in-addr.arpa. 1760 IN PTR sec2.rcode0.at.
100.158.97.176.in-addr.arpa. 1760 IN PTR lisa.goeast.com.
100.158.97.176.in-addr.arpa. 1760 IN PTR ns2.nic53.de.
100.158.97.176.in-addr.arpa. 1760 IN PTR ns2.comteam.at.
100.158.97.176.in-addr.arpa. 1760 IN PTR d.itconsult-dns.co.uk.
100.158.97.176.in-addr.arpa. 1760 IN PTR homer.goeast.ch.
100.158.97.176.in-addr.arpa. 1760 IN PTR ns2.ebit.at.
100.158.97.176.in-addr.arpa. 1760 IN PTR sec2.rcode0.com.
100.158.97.176.in-addr.arpa. 1760 IN PTR ns2.vaiadigital.net.
;AUTHORITY
;ADDITIONAL

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PTR Record Lookup

whatsmydns.net PTR Record Lookup tool lets you query DNS servers and get instant results.

Reverse DNS or PTR record lookups are used to determine the PTR records associated with a domain.

Looking for easier to understand results? Use the Global DNS Checker tool.

DNS PTR Record

PTR records, known as Pointer records or reverse DNS records are used to store the domain name for an IP address.

PTR records are the inverse record of both A records for IPv4 addresses, and AAAA records for IPv6 addresses.

PTR records are stored as their IP address broken into segments and then reversed, followed by either .in-addr.arpa. for IPv4 records or .ip6.arpa. for IPv6 records. For example the IP address 192.168.2.1 would be stored in 1.2.168.192.in-addr.arpa..

The Reverse DNS Lookup tool allows you to analyse domain name and IP address configurations in a more comprehensive way than a simple PTR record lookup.

You can use the Reverse DNS Generator to convert IP addresses into the correct format for PTR records.

Example PTR record

An example PTR record may look like the following:

Record	Type	Value	TTL
1.2.168.192.in-addr.arpa.	PTR	example.com	3600

1.2.168.192.in-addr.arpa. represents identifier of the record. This is the record name for the IPv4 A record 192.168.2.1.

PTR is the record type.

example.com is the value of the record.

3600 is the TTL (time to live) of the record in seconds, this example represents 1 hour. This means that when a record has had updates made to it, then it will take 1 hour to update.

IPv6 PTR Records

Record	Type	Value	TTL
1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa.	PTR	example.com	3600

1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa. represents identifier of the record. This is the record name for the IPv6 AAAA record fe80::1.

PTR is the record type.

example.com is the value of the record.

3600 is the TTL (time to live) of the record in seconds, this example represents 1 hour. This means that when a record has had updates made to it, then it will take 1 hour to update.