Common HTTP status codes: 200 OK The request succeeded, and the resulting resource (e.g. file or script output) is returned in the message body. 301 Moved Permanently 302 Moved Temporarily 303 See Other (HTTP 1.1 only) The resource has moved to another URL (given by the Location: response header), and should be automatically retrieved by the client. This is often used by a CGI script to redirect the browser to an existing file. 403 Forbidden The request was a valid request, but the server is refusing to respond to it. 404 Not Found The requested resource doesn’t exist. 500 Internal Server Error An unexpected server error. The most common cause is a server-side script that has bad syntax, fails, or otherwise can’t run correctly. 503 Service Unavailable The server is currently unavailable (because it is overloaded or down for maintenance). Generally, this is a temporary state. HTTP requests A HEAD request is just like a GET request, except it asks the server to return the response headers only, and not the actual resource (i.e. no message body). A POST request is used to send data to the server to be processed in some way, like by a CGI script. A GET request means retrieve whatever information (in the form of an entity) is identified by the Request-URI. A CONNECT request for use with a proxy that can dynamically switch to being a tunnel Extra information |
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