What Is Client and Server in Web?


Heather Bennett

When it comes to understanding the workings of the web, it’s essential to grasp the concept of client and server. These two components play a fundamental role in how information is exchanged on the internet.


A client refers to a device or computer that requests information or services from a server. It can be a desktop computer, laptop, smartphone, or any other device that has access to the internet. When you open a web browser on your device and enter a URL (Uniform Resource Locator) into the address bar, you are acting as a client.

The client’s main purpose is to send requests for information or services to servers. These requests can include loading web pages, submitting forms, downloading files, or even streaming media. The client communicates with the server using various protocols such as HTTP (Hypertext Transfer Protocol) or HTTPS (HTTP Secure).


A server is a powerful computer that stores and delivers resources in response to client requests. It serves as a central repository for websites, applications, databases, and other digital content. Servers are designed to handle multiple simultaneous requests from clients efficiently.

Servers store and process data before sending it back to the requesting clients. For example, when you visit a website, your browser sends an HTTP request to the server hosting that website. The server then processes this request and sends back the necessary HTML, CSS, JavaScript files, images, or any other required resources for your browser to render and display the website correctly.

Client-Server Interaction

The interaction between clients and servers follows a specific pattern known as request-response cycle. Here’s how it typically works:

  • The client initiates a request by sending an HTTP request to the server.
  • The server receives the request and processes it.
  • The server generates a response containing the requested data or information.
  • The server sends the response back to the client.
  • The client receives the response and renders or utilizes the received data accordingly.

This cycle repeats every time a client needs to fetch new data or interact with a server. It’s crucial for both clients and servers to be properly configured and connected for seamless communication.


In summary, understanding the roles of clients and servers is essential in comprehending how information flows on the web. Clients initiate requests for information or services, while servers process these requests and deliver back the necessary resources. The interaction between clients and servers occurs through a request-response cycle, ensuring effective communication between them.

By grasping this client-server dynamic, you gain valuable insights into how data is exchanged on the internet, enabling you to build more efficient applications and websites.

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