The date and time that the message was sent.

date

type

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.

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.

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

Used to express a typed relationship with another resource.

An identifier for a specific version of a resource.

A weak tag is easier to generate and prevents byte range caching.

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

Standard response indicating a successful action. For GET requests this will be the resource, and for POST it will be the result of the action.