400 – Bad Request. 401 – Unauthorized. 402 – Payment Required. 403 – Forbidden. 404 – Not Found. 405 – Method Not Allowed. 406 – Not Acceptable. 407 – Proxy Authentication Required. 408 – Request Time-Out. 409 – Conflict. 410 – Gone. 411 – Length Required. 412 – Precondition Failed. 413 – Request Entity Too Large. 414 – Request-URL Too Large. 415 – Unsupported Media Type.
