Why Use a Fully Qualified Domain Name For Your Website?

What Is a Fully Qualified Domain Name (FQDN)? | Networksolutions.com

A Fully Qualified Domain Name is an accurate, detailed address that includes your domain name in a hierarchical position within the internet’s DNS structure. It helps in identifying the precise location of a resource on the internet. 

It is formed with various parts such as hostname (for identifying the server), top-level domain (for indicating website category), second-level domain (for primary identification for the website), and subdomains (for categorizing content or services)that ensure accurate online navigation.

Suppose you are exploring NZ Domain hosting packages, including domain names. In that case, you should check out this article, as FQDN is essential for understanding different aspects of domain names.

So, let us understand the reason for using a Fully Qualified Domain Name with an example.

Why Use Fully Qualified Domain Name

  1. Simplify Domain Name Resolution

Domain name resolution means decoding human-identifiable domain names into an IP address (language computers use to communicate). 

With FQDN, you can break complex network structures (usually with large companies), making it easier for network devices to find the right destination.

For instance, in a large company with multiple departments and services, FQDN, like marketing.xyzcompany.com or HR.xyzcompany.com, will ensure easy network navigation.

  1. Enable you to have a Unique path for every resource

Your online presence can be more than just a website. For instance, you can hold an independent email server under the same domain name or link a different server so you can host an app or software. 

In such a scenario, you can add other resources, i.e., a server for hosting emails and apps, which requires a different FQDN IP address for each resource, resulting in a separate FQDN. 

If you check the above diagram, there are different servers on the same website doing different work, like hosting the website or handling mail; irrespective of the fact they are part of the same site, each might have its own IP address or FQDN.

Having separate FQDNs made with subdomains such as mail.myserver.com becomes convenient as it directly connects your clients with specific parts, like your site’s email, without going through the homepage, making it easy to organize and access different bits of your website.

  1. Helps to Obtain SSL certificates

Usually, when you visit a website for online shopping, you must have noticed a little padlock and  “https” in your web address, which looks like a digital security badge known as an SSL certificate. 

This SSL certificate acts as security for online transactions, and to get an SSL certificate for your website, you need to have FQDN, which is the complete address of your website. 

Also, having an SSL certificate provides security and extra visibility to our website on search engines.

  1. Get you more organized 

With FQDN, you can be more organized by giving each part of your website a tag or a completely different section. 

Though technical, in a way, you help to divide the information in a giant computer into smaller ones with the help of a visualization system, and each part gets its own FQDN, making it neat and easy to manage and access any specific service of your choice in your system.


Therefore, using FQDN is not just a technical attribute but a strategic decision that impacts how users interact with your online presence. 

It helps simplify domain name resolution, making it easier for network devices to find the right destination, especially with complex network structures, making it a go-to option for large businesses.

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