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

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.

The time a browser should remember a site can only be accessed with https (seconds).

max-age

cache-control

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

The date and time that the message was sent.

Added by proxies to track a request through proxies and to avoid loops.

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

The client or server would like to close the connection.

The resource has temporarily been moved to another location. This is superseded by 303 and 307.

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

What partial content range types this server supports via byte serving.

Indicate whether the response can be shared with the given origin.

The browser is allowed to request resources from the origin.

Used to express a typed relationship with another resource.

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

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

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.