What are the http status codes?

Common http status codes are as follows:

200 - The server successfully returned the web page
404 - The requested web page does not exist
503 - The service is unavailable

Detailed breakdown:

1xx (Provisional response)

A status code that indicates a temporary response and requires the requester to continue performing the operation.

Code Description
100 (Continue) The requester should continue making the request. The server returns this code to indicate that it has received the first part of the request and is waiting for the remainder.
101 (Switch protocol) The requester has asked the server to switch protocols, and the server has confirmed and is ready to switch.

2xx (Successful)

Status code indicating that the request was successfully processed.
Code Description
200 (Success) The server has successfully processed the request. Typically, this means that the server served the requested web page.
201 (Created) The request was successful and the server created a new resource.
202 (Accepted) The server has accepted the request but has not yet processed it.
203 (Unauthorized Information) The server successfully processed the request, but the information returned may have come from another source.
204 (No Content) The server successfully processed the request but returned no content.
205 (Reset Content) The server successfully processed the request but returned no content.
206 (Partial content) The server successfully processed part of the GET request.

3xx (Redirect)

Indicates that further operations are required to complete the request. Typically, these status codes are used for redirects.
Code Description
300 (Multiple Choices) In response to the request, the server can perform a variety of operations. The server can select an action based on the requester (user agent) or provide a list of actions for the requester to choose from.
301 (Permanently Moved) The requested web page has been permanently moved to a new location. When the server returns this response (in response to a GET or HEAD request), it automatically forwards the requester to the new location.
302 (Temporary Move) The server is currently responding to requests from a web page in a different location, but the requester should continue to use the original location for future requests.
303 (View Other Locations) The server returns this code when the requester should use separate GET requests to different locations to retrieve a response.
304 (Unmodified) The requested web page has not been modified since the last request. When the server returns this response, no web page content is returned.
305 (Using a proxy) The requester can only access the requested web page using a proxy. If the server returns this response, it also indicates that the requester should use a proxy.
307 (Temporary Redirect) The server is currently responding to requests from a web page in a different location, but the requester should continue to use the original location for future requests.

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