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

The client or server would like to close the connection.

connection

The date and time that the message was sent.

date

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

Indicate a resource should be loaded from a different server while still appearing to be loaded from this server.

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

The content security policy allows the server to determine what resources the user is allowed to load.

Treat insecure URLs as though they are secure.

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