In addition to a primary domain such as example.com, hosting environments support several related domain types. Understanding the differences between subdomains, addon domains, and parked domains helps you structure websites efficiently and avoid configuration mistakes.
This article explains each type with clear definitions and common use cases.
Subdomains
A subdomain is an extension of an existing domain that creates a separate address under the same main domain name.
Subdomains add a prefix before the primary domain, separated by a dot. For example:
docs.example.com
In this case, docs is the subdomain of example.com.
Subdomains allow you to host different sections of a website without registering a new domain. Each subdomain can have its own content, configuration, and purpose.
Common uses for subdomains include:
- Blogs such as blog.example.com
- Online stores such as shop.example.com
- Documentation portals such as docs.example.com
- Webmail or application access such as webmail.example.com
Subdomains are typically created using DNS A or CNAME records and are managed through DNS or hosting control panels.
Addon Domains
An addon domain is a completely separate registered domain that is hosted within the same hosting account as your primary domain.
Unlike subdomains, addon domains do not share the same domain name. For example, you could host example.com and anotherdomain.net within a single hosting account.
Each addon domain can have:
- Its own website content
- Separate email addresses
- Independent DNS and forwarding settings
Addon domains are useful when managing multiple websites under one hosting plan. They are commonly used by developers, agencies, and businesses that operate more than one site.
Hosting multiple domains from a single account is supported by many hosting plans and simplifies management and billing.
Parked Domains
A parked domain, also known as a domain alias, is a registered domain that displays the same content as another domain.
When a domain is parked, visitors see the content of the primary domain even though a different domain name appears in the browser address bar.
Parked domains are often used to:
- Protect brand variations
- Prevent typo or similar domains from being used by others
- Redirect multiple domain names to a single website
For example, example.net can be parked on example.com so both domains show identical content.
Choosing the Right Domain Type
Each domain type serves a different purpose:
- Use subdomains to organize sections within one domain
- Use addon domains to host multiple independent websites
- Use parked domains to point additional domain names to existing content
Domain configuration and management options are available through the Colonelserver Domain services.
Managing Domains
All domain related settings, including DNS and hosting configuration, can be managed through the Client Area.
If you are unsure which domain type fits your use case or need help with configuration, you can request assistance via the Support Ticket System.
Understanding these domain types ensures efficient website structure and avoids unnecessary registrations or misconfigurations.