Domains and DNS

A domain name is the name that people type in their browsers to access your website.

A domain name is hierarchical and may consist of a number of parts called labels:

• The label furthest to the right is called the top-level domain. For example, com is the top-level domain of www.example.com. The number of top-level domains is limited and all of them are managed by separate international authorities.
• The second-level domain is the label that we mainly use to imply the purpose of our website. In www.example.com it is the example part. The combination of the second-level and top-level domain names specifies the exact location of your website.
• Each label to the left is a subdomain of the domain to the right. For example, www is the subdomain of example.com. Subdomains can be convenient when you want to isolate some content from the main site, e.g. you can organize your personal blog on myblog.example.com. For information on how to add subdomains in Panel, refer to the section Adding Subdomains.

In fact, domain names exist only for convenience; the real communication between browser and web servers uses IP addresses - the numerical host identifiers. For example, the real address of www.example.com may be 192.0.2.12 (IPv4). To resolve domain names into IP addresses, web hosts use DNS The Domain Name System (DNS) is a hierarchical distributed naming system for computers, services, or any resource connected to the Internet or a private network. It associates various information with domain names assigned to each of the participating entities. A Domain Name Service resolves queries for these names into IP addresses for the purpose of locating computer services and devices worldwide. By providing a worldwide, distributed keyword-based redirection service, the Domain Name System is an essential component of the functionality of the Internet. technology. For more details about how DNS is implemented in Panel, refer to the section Configuring DNS for a Domain.

DNS allows several domains to be resolved into one IP address An Internet Protocol address (IP address) is a numerical label assigned to each device (e.g., computer, printer) participating in a computer network that uses the Internet Protocol for communication. An IP address serves two principal functions: host or network interface identification and location addressing. Such additional names are called domain aliases. This is convenient when you have purchased several domains that you want to point to the same website. For information on how to add aliases to existing domains, refer to the section Adding Domain Aliases.