What is an Addon Domain?
An addon domain is a feature provided by cPanel that allows you to host an entirely separate, fully functional website on your single, existing web hosting account. It acts as an independent domain (e.g., example-two.com) that shares the resources of your primary account (e.g., example-one.com).
Benefits of Using Addon Domains
- **Cost Efficiency:** Addon domains eliminate the need to purchase separate hosting subscriptions for every website you own, making it a cost-effective solution for managing multiple projects.
- **Independent Operation:** Each addon domain functions completely independently from your primary domain, including separate files, email accounts, and visitor traffic.
- **Directory Structure:** Behind the scenes, cPanel organizes the files for the addon domain into its own folder, or document root, within your primary domain's home directory.
Resource Sharing Model
It is important to understand that while an addon domain functions independently to the user, it **shares resources** collectively with the master domain and any other addon domains on the account. These shared resources typically include:
- Disk Space (Storage)
- Bandwidth (Data Transfer)
- CPU and Memory Limits
- Inodes (Total number of files and folders)
Clients should monitor their total usage to ensure all domains combined do not exceed the limits set by their hosting plan.
