server

The date and time that the message was sent.

date

The length of the response body in octets (8-bit bytes).

Control options for the current connection and list of hop-by-hop response fields.

The client or server would like to close the connection.

This and all future requests should be directed to the given URI. The request method can change.

Indicates that different content may be provided to different clients, depending on the vary header.

The time at which the response is considered stale.

Used to express a typed relationship with another resource.

The age the object has been in a proxy cache in seconds.

Indicates whether a cache was used to server this response.

The resource could not be found, but may be available in the future.