What are Response Codes?

Response codes are also known as HTTP status codes. These are three-digit codes that the server uses to respond to a client’s request.

In simple terms, when you make a request using your web browser, the server receives the request and will respond with a three-digit HTTP code. This code is a response code.

There are 5 categories of response codes.

  • 1xx informational responses (100 – 199)

  • 2xx successful (200 – 299)

  • 3xx redirection (300 – 399)

  • 4xx client error (400 – 499)

  • 5xx server error (500 – 599)

Each code performs a specific function. It tells the browser about the status of the request whether it’s successful or failed. This entire process is significant for the proper functioning of the web.