Both 4xx errors and 5xx errors are HTTP(Hypertext Transfer Protocol) response status codes.  It consists of codes from IETF Request for Comments (RFCs), other specifications, and some additional codes that are used in some common applications of the Hypertext Transfer Protocol (HTTP). The first digit of the status code indicates one of five standard classes of responses. The message phrases displayed are typical, but any human-readable alternative may be provided. Sometimes when you try to visit the web page, you’re met with an HTTP error message indicating that something went wrong. In some cases, it could be an error you made, but often it’s the site’s fault. Basically, if you are the one who made the mistake, it will display a 4xx error code and if it is the site’s fault, it will display a 5xx error code. Let’s go to deeper depths regarding this topic.

What are 4xx Code Errors?

4xx error codes are client side mistakes which generally indicates that there is something wrong with the client’s action, device or his/her browser. The 4xx class of status code is mainly for cases in which the client seems to have mistaken. This doesn’t mean that there couldn’t be a server’s error in a 4xx error as mentioned in many of our other posts. Along with the error number, you will also be sent small writing which will help you identify the problem. Except when responding to a head request, the server should consist of an entity containing an explanation for the occurrence of the error, and whether it is a temporary or permanent condition.  There are about 41 4xx error codes and some of them are listed down below:

  • 400 Bad Request Error
  • 401 Unauthorized Error
  • 402 Payment Required Error
  • 403 Forbidden Error
  • 404 Not Found Error
  • 408 Request Timeout Error

These are just some examples and there are many more to this. All of these error codes are caused by different problems and have different solutions. There isn’t any common solution that can surely fix these problems.

What are 5xx Code Errors?

5xx error codes are server-side errors that mostly suggest that there is something wrong with the server. Just as server errors could lead to 4xx error codes, 5xx error codes could also be the result of the client’s fault. Similar to the 4xx error codes you will be provided with small writing to help you spot the problem. There are about 19 different 5xx error codes with different meanings. Here is a list of some of them:

  • 500 Internal Server Error
  • 501 Not Implemented Error
  • 502 Bad Gateway Error
  • 503 Service Unavailable Error
  • 504 Gateway Timeout Error

These are some of the many 5xx problems. Even though 5xx problems are the errors that are caused by the server, it doesn’t mean you can’t do anything. Click here to find out about these specific 5xx error codes, identify your problem and learn how to fix it.

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