HTTP Status Code 504 – Gateway Timeout

The target resource is no longer available at the origin server and that this condition is likely to be permanent. If the origin server does not know, or has no facility to determine, whether or not the condition is permanent, the status code 404 Not Found ought to be used instead. The 410 response is primarily intended…

The first principle of the CIA Triad is confidentiality. Confidentiality is the concept of protecting data, resources, or objects through a means of secrecy. This security measure means that anyone who is not authorized to access or interact with resources cannot do so. Protection Examples: You can protect your resources by using encryption, access controls,…

One or more conditions given in the request header fields evaluated to false when tested on the server. This response code allows the client to place preconditions on the current resource state (its current representations and metadata) and, thus, prevent the request method from being applied if the target resource is in an unexpected state.

The server, while acting as a gateway or proxy, received an invalid response from an inbound server it accessed while attempting to fulfill the request.

The server has successfully fulfilled the request and that there is no additional content to send in the response payload body. Metadata in the response header fields refer to the target resource and its selected representation after the requested action was applied. For example, if a 204 status code is received in response to a…

The origin server did not find a current representation for the target resource or is not willing to disclose that one exists. A 404 status code does not indicate whether this lack of representation is temporary or permanent; the 410 Gone status code is preferred over 404 if the origin server knows, presumably through some configurable means,…