Do you Understand DNS in Web Hosting?

By: | Updated: July 22, 2021

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Domain Name System, also known as DNS, is in charge of a websites domain name and email settings. The DNS will decide which server is accessed when a visitor comes to a website. The hosting company supplies your website with a server, so the DNS for web hosting will reach out to your hosting provider’s server. When you switch hosting companies, the DNS will be directed to the new hosting provider.

The DNS can be compared to a phone book. It is a server that retains and shares local website information. DNS takes the information, which is readable by humans, and translates it into a format that computers can understand. The computer format is known as an IP address. Your IP address will be used by the DNS to ensure that the correct web page is pulled up.

DNS for Web Hosting

There is more to a domain then its name. When a domain is purchased, it is then registered. The registration of a domain will then be recorded in the authoritative database within the internet. This will be decided based on the domain’s extension. The extension is the bit of information, which follows your domain name. This includes .com, .net, and .org. This ensures that domain names are not duplicated.

DNS serves as the directory for domain names. When a request to call up a domain is executed, the DNS will look up the domain name. However, the domain name will be read by the computer in reverse. For example, when you type in, the DNS would search the .com directory first. It would then look for

This is a common practice that is used in Top Level Domain (TLD) Name Server. Once it is found, the Authoritative Name Server is returned by the DNS. A host file will be contained in the name server, which is linked to a domain name and recorded as an authoritative name server.

Why is this important?

This can all be a bit confusing, but they become important when you need to make updates to CNAME records, A records, NS records and MX records. These updates should not be taken lightly, as they come with consequences. When the authoritative name servers are changed, there will need to be a new name server recorded. This happens when you switch hosting companies.

In order for a change to occur with the IP address, the zone file will need to be changed. This change can only take place at the authoritative name server for the domain.

When you take the time to understand these types of technical processes, you will gain an appreciation of how the internet really works. It could help sort out confuse you may have, as well as save you some time when wanting to change recorded web data. Your hosting provider will be able to assist you when it comes to changing or configuring DNS for web hosting on the servers. You may also find some help by watching online tutorials or engaging in forum chats.

by Brett Helling
Brett has been starting, growing, and monetizing websites since 2014. While in college, he began to learn about digital marketing. After graduating, he continued to build a diverse portfolio of websites while working a full time job. After years of building the portfolio on the side, he made the jump to run his websites full time.

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