HTTP Response Status Codes meaning in English

HTTP Response Status Codes

What is a HTTP Response Status Code?

HTTP response status codes are issued by web servers in response to a client request as part of the Hypertext Transfer Protocol (HTTP).

Three digits long - HTTP status codes should tell us what type of response a server is issuing.

For example if a server responds with a 200 OK HTTP response status code, this means that the page or resource loaded successfully.

HTTP Response Codes and SEO

The HTTP response a resource provides is a key part of SEO and technical SEO.

Put simply, if a resource provides the wrong response this can be bad for SEO or lead to a bad user experience.

Learning and having a basic knowledge of the different HTTP response codes is important for anyone that wants to understand the fundamentals of SEO and web development.

Below you can find a list of the HTTP response codes broken down into the main different types of responses.

Types of HTTP Response

There are 5 general classes or categories of HTTP response status codes, with the first digit indicating which type a particular response is.

1xx Informational response

1xx responses mean that the server has received the response and is processing the request.

2xx Successful

2xx responses are provided when the server has received, understood and then successfully provided the requested resource.

3xx Redirection

3xx responses are used for different types of redirects, such as 301 for permanent redirects, or 302 for temporary redirects.

4xx Client Error

4xx responses are provided when a client has erred, such as by requesting a resource that is not available at that location.

5xx Server Error

5xx responses are provided when a server has been unable to fulfil a request due to a server-side error.

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