HTML Common status Codes

HTML commonly used status code, whether it is to do development, or do SEO are need to understand.

I gave a list of the usual status codes, as follows:

1**: Request received, continue processing 2**: Operation received successfully, parse, accept 3**: Completion of this request must be further processed 4**: The request contains an error syntax or cannot be completed 5**: The server failed to perform a fully valid request

100--customer must continue to make a request 101--customer requests the server to convert the HTTP protocol version on request

200--Transaction successful 201--prompt to know the URL of the new file 202--accept and process, but processing incomplete 203--return information is not determined or incomplete 204--request received, but the return information is empty 205--the server completed the request, the user agent must reset the currently browsed files 206 --The server has completed a partial user get request

300--requested resources can get 301--delete request data in multiple locations 302--found request data at other addresses 303--advise customer to access other URLs or access methods 304--the client has performed a get, but the file has not changed 305-- The requested resource must get the code that was used in the previous version of HTTP from the address specified by the server, and the resource 306--is no longer used in the current version to temporarily delete the resources requested by the 307--declaration

400--error request, such as syntax error 401--request authorization failed 402--reserved valid Chargeto header response 403--request does not allow 404--no discovery file, query or URL 405--User Defined method in request-line field does not allow 406-- According to the user sent by the accept drag, the request resource is not accessible 407--similar to 401, the user must first be authorized on the proxy server 408--the client does not complete the request within the user-specified time of starvation 409--to the current resource state, the request cannot be completed 410-- This resource is no longer available on the server and no further reference address 411--server rejects user-defined Content-length property request 412--One or more request header fields in the current request error 413--the requested resource is greater than the size allowed by the server 414-- The requested resource URL is longer than the length allowed by the server 415--the request resource does not support the request item format 416--The request contains a range request header field, there is no range indication value within the current request resource scope, and the request does not contain a If-range request header field 417-- The server does not meet the expectations specified by the request Expect header field, and if it is a proxy server, the next level of server may not satisfy the request

500--server generates an internal error 501--the server does not support the requested function 502--the server is temporarily unavailable, sometimes to prevent system overload 503--server overload or Pause repair 504--gateway overload, the server uses another gateway or service to respond to the user, and the wait time setting value is longer 505--server does not support or deny the HTTP version specified in the request header

Source: HTML Common status Code

HTML Common status Codes