What Is a Web Server Address?


Larry Thompson

What Is a Web Server Address?

In the world of website hosting and internet connectivity, a web server address plays a vital role. It is the unique identifier that allows users to access a specific website or web application on the internet. A web server address consists of two main components: the domain name and the IP address.

Domain Name:
The domain name is the human-readable part of a web server address. It is typically composed of words or phrases separated by dots (.

), such as www.example.com. The domain name helps users easily identify and remember websites, as it represents the brand or purpose of the site. For example, google.com represents Google’s search engine, while Amazon.com represents Amazon’s online marketplace.

IP Address:
While domain names are easy for humans to remember, computers and servers primarily communicate using IP addresses. An IP (Internet Protocol) address is a unique numerical label assigned to each device connected to a computer network. It serves as the actual address that directs data packets to their destination.

Types of Web Server Addresses:

There are two main types of web server addresses: IPv4 (Internet Protocol version 4) and IPv6 (Internet Protocol version 6).

IPv4 Address:
IPv4 addresses are written in decimal format and consist of four sets of numbers separated by periods (e.g., Each set can range from 0 to 255, allowing for approximately 4 billion unique addresses. However, due to the rapid expansion of internet usage, IPv4 addresses have become scarce.

IPv6 Address:
To overcome the limitations of IPv4, IPv6 was introduced with significantly more available addresses. IPv6 addresses are written in hexadecimal format and consist of eight sets separated by colons (e., 2001:0db8:85a3:0000:0000:8a2e:0370:7334). With this expanded address space, IPv6 can support an almost infinite number of unique addresses.

How Web Server Addresses Work:

When a user enters a domain name (e., www.com) into their web browser, the browser initiates a series of steps to convert the domain name into an IP address. This process is known as DNS (Domain Name System) resolution.

The DNS system acts as a phone book for the internet, translating human-readable domain names into machine-readable IP addresses. The browser first checks its own cache memory for a previously resolved IP address for the given domain. If it doesn’t find one, it sends a request to the operating system’s DNS resolver or to an external DNS server.

Once the IP address is obtained, the web browser establishes a connection with the web server using that IP address. The server then responds by sending back the requested web page or resource to the user’s browser, allowing them to view and interact with the website.


In summary, a web server address is a crucial component of website accessibility and connectivity. It consists of a domain name and an IP address that work together to direct users to specific websites or web applications on the internet.

Understanding how web server addresses function can help users navigate the online world more effectively and comprehend the underlying technology behind website hosting and connectivity.

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