PTR record

Reverse DNS – Definition

Reverse DNS, also commonly called simply rDNS, is a method that resolves an IP address into its corresponding domain name. It has exactly the opposite function compared to the traditional Forward DNS lookup where the domain name is resolved to its IP address.

Thanks to it, you are able to prove that the particular IP address actually matches the domain name. A common reason to use it is to provide trust in the email servers. They perform Reverse DNS lookups to ensure that the email is sent from an authoritative source and it is not some type of scam.

If you want to avoid scam, try Reverse DNS service!

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What is a DNS zone?

The DNS zone is a small yet crucial component of the Domain name system namespace. It is an organizational segment that allows DNS administrators to manage and have control over their networks. There are probably numerous DNS zones that are using the same DNS server as you. Thanks to these little administrative elements, it is easier and to manage the entire namespace.

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As far as we know, there are a lot of DNS record types in the Domain Name System. These are an essential and indispensable part of all DNS resolution. Their main role is to provide information about the domain and its IP address. The records are stored in a DNS file, hosted on the authoritative DNS server. They are used to present information to the DNS resolver about different types of data. 

Continue reading List of DNS record types for beginners

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