The date and time that the message was sent.

date

content-type

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

The client would like to keep the connection open.

WordPress redirect agent.  A value of "WordPress" indicates that WordPress itself redirected the resource.

A HSTS Policy informing the HTTP client how long to cache the HTTPS only policy and whether this applies to subdomains.

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

Encoded information about your request from Cloudflare.

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.

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.