HTTP 204 No Content vs 301 Moved Permanently
HTTP 204 (No Content) is a 2xx Success response, while 301 (Moved Permanently) is a 3xx Redirection response. 204 indicates that the server successfully processed the request but is not returning any content. Common for DELETE operations and form submissions that don't need a response body. In contrast, 301 means that the resource has been permanently moved to a new URL. All future requests should use the new URL. Search engines will transfer link equity to the new URL.
Mô tả
The server successfully processed the request but is not returning any content. Common for DELETE operations and form submissions that don't need a response body.
Khi bạn thấy mã này
After DELETE requests, PUT updates where no body is needed, or CORS preflight responses.
Cách khắc phục
No fix needed. The action was successful; there is simply no content to return.
Mô tả
The resource has been permanently moved to a new URL. All future requests should use the new URL. Search engines will transfer link equity to the new URL.
Khi bạn thấy mã này
After domain migrations, URL restructuring, or when consolidating duplicate URLs.
Cách khắc phục
Update links and bookmarks to the new URL in the Location header. For SEO, this is the preferred redirect for permanent moves.
Sự khác biệt chính
204 is a 2xx Success response, while 301 is a 3xx Redirection response.
HTTP 204: The server successfully processed the request but is not returning any content. Common for DELETE operations and form submissions that don't need a response body.
HTTP 301: The resource has been permanently moved to a new URL. All future requests should use the new URL. Search engines will transfer link equity to the new URL.
You encounter 204 when after DELETE requests, PUT updates where no body is needed, or CORS preflight responses.
You encounter 301 when after domain migrations, URL restructuring, or when consolidating duplicate URLs.
Khi nào dùng cái nào
For 204 (No Content): No fix needed. The action was successful; there is simply no content to return. For 301 (Moved Permanently): Update links and bookmarks to the new URL in the Location header. For SEO, this is the preferred redirect for permanent moves.