This article lists standard and notable non-standard HTTP response status codes. Standardized codes are defined by IETF as documented in Request for Comments (RFC) publications and maintained by the IANA. Status Code204 “NoContent" meaning. Read about the impact on site ranking, common issues, and how to fix them. Tools for detecting HTTP status codes response. The HTTP 204NoContent successful response status code indicates that a request has succeeded, but the client doesn't need to navigate away from its current page. A204 response is cacheable by default, and an ETag header is included in such cases. The HTTP 204NoContent successful response status code indicates that a request has succeeded, but there is nocontent on the resource.The 4xx (Client Error) class of status code indicates that the client seems to have erred. It means the request has bad syntax or can't be fulfilled. What status code should I set for UPDATE (PUT) and DELETE (e.g. product successfully updated)?HTTP 204NoContent: The server successfully processed the request, but is not returning any content. 204NoContent: The 204NoContent indicates that the server has successfully processed the request but needs to return any content or maybe there is no need to send back any data. This code is cacheable by default. Tag header is included in such a response. Among these, the 204NoContent status code is particularly useful for scenarios where a server successfully processes a request but has no data to return to the client (e.g., after a DELETE or PUT operation that doesn’t require a response body).