Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Copyright/license: This figure has been modified from an open-source article [208] distributed under the terms and conditions of the Creative Commons CC BY license.
