HTTP status codes (also known as browser/internet error codes) are standard response codes provided by internet web servers. When a web page or other resource fails to load properly, the codes assist in determining the source of the problem.
The term “HTTP status code” refers to the HTTP status line, which comprises the HTTP status code as well as the HTTP reason phrase.
The HTTP status line 500: Internal Server Error, for example, is composed of the HTTP status code 500 and the HTTP reason phrase Internal Server Error.
There are five types of HTTP status code problems, with the following two being the most common:
4xx Client Error
This category includes requests for web pages or other resources that have incorrect syntax or cannot be supplied for some other reason, presumably due to the client’s error (the web surfer).
The HTTP status codes 404 (Not Found), 403 (Forbidden), and 400 are some of the most prevalent client error codes (Bad Request).
5xx Server Error
This category comprises requests for web pages or other resources that the website’s server understands but is unable to fulfill for any reason. Also: How To Fix Roblox Error Code 6 | Five Possible Solutions
The ever-popular 500 (Internal Server Error) is one of the most common, along with 504 (Gateway Timeout), 503 (Service Unavailable), and 502 (Service Unavailable) (Bad Gateway).
More Information on HTTP Status Codes
In addition to the 4xx and 5xx codes, there are other HTTP status codes. There are additional 1xx, 2xx, and 3xx codes, which provide information, affirm success or direct a redirection. These new types aren’t mistakes, thus the browser shouldn’t warn you about them.
See our HTTP Status Code Errors page for a complete list of errors, or see our HTTP Status Lines item for all of these HTTP status lines (1xx, 2xx, and 3xx).
The official source for HTTP status codes is the IANA’s Hypertext Transfer Protocol (HTTP) Status Code Registry page, although Windows occasionally provides additional, more specific errors that explain additional information.
While 500 indicates an Internet Server Error, Microsoft Internet Information Services (ISS) uses 500.15 to indicate that direct queries for Global.aspx are not permitted.
Here are some further examples:
- The HTTP reason phrase for 404.13 is Content length too large.
- 500.53 indicates that a rewriting error occurred during the handling of the RQ RELEASE REQUEST STATE notice.
- There was an outbound rule execution error. Before the output user cache is changed, the rule is scheduled to run.
- Bad Gateway: Forwarder Connection Error (502.3) (ARR).
- These so-called sub-codes issued by Microsoft ISS don’t replace HTTP status codes; instead, they’re found in places like documentation files across Windows.
Not All Error Codes Are Related
A Device Manager error code or a system error code is not the same as an HTTP status code. Although some system error codes have the same code numbers as HTTP status codes, they are distinct issues with distinct error messages and implications.
The HTTP status code 403.2, for example, indicates that read access is prohibited. However, system error number 403 indicates that the procedure is not running in the background.
Similarly, the 500 status number for Internet Server Error could be confused with the 500 system error code for User Profile Cannot Be Loaded.
Read also : Top 10 Best Linux Distributions Alternatives of All Time In 2022
These, however, are unrelated and should not be viewed as such. One appears on a web browser and explains a client or server error message, whereas the other appears elsewhere in Windows and does not necessarily include the web browser.
If you’re having problems determining whether the error code you’re seeing is an HTTP status code, examine the message’s location. It’s an HTTP response code if you detect an error on a web page in your browser.
Other error messages should be dealt with separately depending on their context: Device Manager error codes appear in Device Manager, system error codes appear across Windows, POST codes appear during the Power On Self Test, and game/app-specific faults appear in those programs, among other things.
