Which Server Converts Web Address to IP?


Scott Campbell

Have you ever wondered how your web browser is able to access a website just by typing in its address? Behind the scenes, there is a crucial process that takes place – the conversion of the web address to an IP address. This process is performed by a special server known as the DNS server.

The Domain Name System (DNS)

The Domain Name System, or DNS for short, is a hierarchical decentralized naming system that translates easily memorable domain names, like www.example.com, to their corresponding IP addresses. In simple terms, it acts as a phonebook for the internet.

How Does DNS Work?

When you enter a web address in your browser’s URL bar and hit Enter, your computer sends a request to the DNS server to resolve the domain name into an IP address. The DNS server then searches for the corresponding IP address associated with that domain name.

This process involves multiple steps:

  1. Your computer first checks its local cache for any previously resolved domain names. If it finds a match, it directly uses the associated IP address without contacting an external DNS server.
  2. If there is no match in the local cache, your computer sends a request to your configured DNS server.

    This can be either your ISP’s default DNS server or a custom one you have specified.

  3. The configured DNS server checks its own cache for any previously resolved domain names. If found, it returns the corresponding IP address to your computer.
  4. If there is no match in its cache either, the configured DNS server contacts other DNS servers in an iterative process until it finds an authoritative DNS server responsible for that specific domain name.
  5. The authoritative DNS server returns the IP address of the requested domain name back to your computer via its configured DNS server.
  6. Your computer then stores this IP address in its local cache for future use and establishes a connection with the web server associated with the IP address.

Importance of DNS Servers

DNS servers play a vital role in the functioning of the internet. Without them, we would have to remember and type in complex IP addresses instead of simple and memorable domain names. Additionally, DNS servers help distribute internet traffic by directing requests to different web servers based on their IP addresses.

It’s worth noting that there are different types of DNS servers, including authoritative DNS servers, recursive DNS servers, root DNS servers, and more. Each type has its own specific role in the overall functioning of the DNS system.


The process of converting web addresses to IP addresses is handled by DNS servers. These servers play a crucial role in translating human-readable domain names into machine-readable IP addresses. By understanding how this conversion takes place, you can appreciate the seamless experience of accessing websites with just a few clicks or keystrokes.

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