Host Name


A host name, also called a domain name, is a label that identifies a specific device, such as a computer or server, within a network or on the internet. It is a human-readable counterpart to an IP address, making it easier for users to navigate and access websites or resources. Host names are unique within their domain to prevent confusion and improve overall network organization.


The phonetic spelling of ‘Host Name’ using the International Phonetic Alphabet (IPA) is: /hoʊst neɪm/

Key Takeaways

  1. A Host Name, also known as a domain name, is a human-readable address for a device or server connected to a network, aiding users in recognizing and accessing websites or other online resources.
  2. Host Names are translated to IP addresses via the Domain Name System (DNS), which acts as a phonebook for the internet, allowing devices to communicate with one another using numeric IP addresses.
  3. When choosing a host name, it is important to make it short, memorable, and relevant to your website’s content or business, while also adhering to international domain name standards and avoiding any copyright or trademark infringements.


The term “Host Name” is important in technology because it serves as a unique identifier for a device or computer within a network or the internet.

It simplifies communication between devices by allowing users and systems to connect to a specific device using a user-friendly name, rather than a numerical IP address.

Hostnames make it easier for humans to navigate and manage networks, fostering more efficient and seamless interactions between devices.

In addition, as a component of the domain name system (DNS), hostnames contribute to organizing websites, email servers, and various online resources, ultimately enhancing the overall performance and accessibility of the digital world.


A host name serves as a more user-friendly identifier for devices connected to a network, making it easier for people to recognize and remember them. In essence, it functions as an alias for the device’s IP address, which consists of a complex sequence of numbers difficult to memorize.

This purpose becomes particularly essential when managing multiple devices connected to the same network, such as in a corporate setting or when accessing specific services from servers on the internet. Host names are usually assigned to devices like servers, routers, and personal computers, and can reflect the device’s purpose, location, or owner, among other characteristics.

Host names play a crucial role in domain name systems (DNS), which act as the internet’s “phonebook.” When you enter a website’s address into your browser, the DNS translates the provided host name into an IP address, allowing you to access the requested website seamlessly. This process eliminates the need for internet users to know and enter lengthy strings of numbers when navigating the web.

Additionally, host names allow administrators to manage devices more efficiently in local area networks (LANs) by quickly identifying which devices perform specific functions or belong to particular departments. By simplifying network navigation for both users and administrators, host names contribute greatly to the overall functionality and user experience of digital environments.

Examples of Host Name

Web Hosting Services: One of the most common real-world examples of hostnames is in the domain of web hosting services. For example, when you visit, the domain name “” is the hostname, pointing to the server which hosts the Google search engine. Web hosts generally provide domain registration and management services, allowing users to register and manage their own hostnames, which are then translated into IP addresses for server identification.

Email Services: Email services and clients rely on hostnames for sending and receiving messages. When you send an email, the email is directed from your email client to the recipient’s email server through the Simple Mail Transfer Protocol (SMTP). Hostnames identify the email servers, ensuring that email messages reach the correct destination. For instance, when sending an email to [email protected], “” represents the hostname, which is used to route the email to John’s email server.

Remote Desktop Connection: Many organizations and corporations rely on remote desktop connections to enable employees to access their desktops and internal systems remotely. Hostnames are used to identify the remote desktop server and the desktop computers connected to it. When users initiate a remote desktop connection, they usually enter a unique hostname that corresponds to the remote computer they wish to connect to. This allows the Remote Desktop Protocol (RDP) to route the connection to the correct computer, ensuring a secure and accurate connection.

FAQ: Host Name

1. What is a host name?

A host name is a unique, human-readable label assigned to a device connected to a network, allowing it to be easily identified. This usually consists of a combination of alphanumeric characters, hyphens, and periods, and is used to locate and communicate with a specific device on the internet or a local network.

2. How do I find my host name?

For Windows, open the Command Prompt and type “hostname” (without quotes) and press Enter. The system will display your computer’s host name. For macOS, open Terminal and type “hostname” (without quotes), and press Enter. You’ll see your computer’s host name displayed.

3. Can I change my computer’s host name?

Yes, you can change your computer’s host name. On Windows, go to System Properties > Computer Name and click the “Change” button. On macOS, go to System Preferences > Sharing and modify the “Computer Name” field, then click “Edit” to make changes.

4. What is the difference between a host name and a domain name?

A host name is used to identify a specific device on a network, while a domain name is used to identify a group of devices, usually a website, on the internet. A host name can be part of a domain name. For example, in the domain name “”, “www” is the host name, and “” is the domain name.

5. Are IP address and host name the same?

No, an IP address and a host name are not the same. An IP address is a unique numerical identifier assigned to each device connected to a network, while a host name is a human-readable label for that device. However, both serve the purpose of locating and identifying devices on a network.

Related Technology Terms

  • Domain Name System (DNS)
  • Internet Protocol (IP) Address
  • Uniform Resource Locator (URL)
  • Server
  • Fully Qualified Domain Name (FQDN)

Sources for More Information


About The Authors

The DevX Technology Glossary is reviewed by technology experts and writers from our community. Terms and definitions continue to go under updates to stay relevant and up-to-date. These experts help us maintain the almost 10,000+ technology terms on DevX. Our reviewers have a strong technical background in software development, engineering, and startup businesses. They are experts with real-world experience working in the tech industry and academia.

See our full expert review panel.

These experts include:


About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

More Technology Terms

Technology Glossary

Table of Contents