HTTP codes

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HTTP (HyperText Transfer Protocol) is simply one of the protocols used on the Internet. It is what drives the World Wide Web.

After receiving a request from a client (browser), the server software sends a response. The response consists of

  1. Response line
  2. The header information
  3. The body

The response line contains the HTTP version number, the status code and a description of the code in ‘English’.

HTTP/1.1 200 OK

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The table below describes some of the important status codes sent by a server.

Code Description
100 Continue
101 Switching Protocols
200 OK
201 Created
202 Accepted
203 Non-Authoritative Information
204 No Content
205 Reset Content
206 Partial Content
300 Multiple Choices
301 Moved Permanently
302 Moved Temporarily
303 See Other
304 Not Modified
305 Use Proxy
400 Bad Request
401 Unauthorized
402 Payment Required
403 Forbidden
404 Not Found
405 Method Not Allowed
408 Request Time-out
415 Unsupported Media Type
500 Internal Server Error
501 Not Implemented
502 Bad Gateway
503 Service Unavailable
504 Gateway Time-out
505 HTTP Version not supported
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