server

The date and time that the message was sent.

date

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.

The time at which the response is considered stale.

Inform all caching mechanisms from server to client whether they may cache this object.

May be stored by any cache but must be validated by the server.

HTTP/1.0 backwards compatible cache handling.

Force requests to the origin server before releasing a cache.

A cookie sent from the server to be set on the client

The client will only send the cookie when requesting this path, or subdirectories, from the server.

Prevents access to the cookie through JavaScript.

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