Aside from granting you the right to use a particular name, domains come with many potential uses involving Addon and Subdomains. Whether you want a website, email address, or even to redirect to another name, the options available provide flexibility for all users.
If this wasn’t enough, then there is also the availability of addon and subdomains. Think of them as an additional ring on the onion of domain management, providing another layer of potential options.
Basically, an add-on domain lets you operate an entirely independent website under the same cPanel account as your primary domain. This prevents the need for a separate web hosting service, which can be handy if you are on a tight budget.
You have to consider the fact that the addon website and the website for your primary domain will be sharing the same resources. This means the same storage space, CPU allowance and RAM.
If your two websites started to exceed the allocated resources, both of them would suffer the repercussions of slower speed and potential crashing.
Whether you should actually use an add-on domain, the answer is heavily based on the individual situation. Typically, if you have a small site using minimal resources, then having it listed as an addon domain is a good idea. You can create addon domains via cPanel > Addon Domains.
A slightly different concept, subdomains are less flexible than their add-on counterparts. The major restriction is about how subdomains can be named, as the primary name must be incorporated.
Just like add-ons, any separate websites for your subdomains will share the resources allocated to your web hosting service, so be careful!
The best instance for using subdomains would be distinguishing between different pages on your existing website, which helps people access what they are looking for faster.
Similarly, if you wanted to have different pages targeted towards contrasting audiences, that is always an option. Below is an example of a subdomain you could set up if you had offerings specifically for Victorians. You can create subdomains via cPanel > Subdomains.
Both addon and subdomains can be quite useful when applied to the right circumstances. It is just a matter of being aware of your websites and the resources each will need.