What are 'PTR records'?

<abbr class="glossary" title="Domain Name Server">DNSabbr> PTR Records

 

A <abbr class="glossary" title="Domain Name Server">DNSabbr> pointer record (PTR for short) provides the domain name associated with an IP address.

 

A <abbr class="glossary" title="Domain Name Server">DNSabbr> PTR record is exactly the opposite of the <a class="intfaqlink" href="/faq/index.php?action=artikel&cat=11&id=493&artlang=en">'A' recorda>, which provides the IP address associated with a domain name.

 

<abbr class="glossary" title="Domain Name Server">DNSabbr> PTR records are used in <a href="https://simple.wikipedia.org/wiki/Reverse_DNS_lookup">reverse <abbr class="glossary" title="Domain Name Server">DNSabbr> lookupsa>. When a user attempts to reach a domain name in their browser, a <abbr class="glossary" title="Domain Name Server">DNSabbr> lookup occurs, matching the domain name to the IP address.

A reverse <abbr class="glossary" title="Domain Name Server">DNSabbr> lookup is the opposite of this - it searches for a domain name with the given IP address.

 

This also means: PTR records can not be defined using the name servers of the domain, but have to be requested at the provider of the IP address, in case the provider supports this.

 

 

 

Tags: DNS, nameserver, Nameservice

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