Why are the third and fourth DNS records needed?

Started by Svetlana, Aug 18, 2022, 12:21 AM

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SvetlanaTopic starter

Why are the third and fourth DNS records needed?

A domain registrar has four areas to modify DNS records. But hosting providers ask you to enter only two. What are the other two for?
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annamariya

According to the rules of domain name registration, you need two different DNS servers (two records) with different IP addresses. The hosting provider must transfer the domain name + at least two DNS records to the registrar in order for the domain registration to be successful.
This rule about two records is provided in order to increase reliability - if the first one is unavailable, then the second one is accessed.
Often registrars allow you to register 2 records with the same IP addresses. This does not affect the operation of the domain in any way, however, in case of a potential failure or unavailability of the IP address of these two DNS servers, the domain will not work.

The third and fourth entries are provided for adding a third and fourth DNS server in order to increase stability and ensure the operation of the domain in case of failure of the first two servers.
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