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.
The examples are chosen so that it can be appreciated how the change between the two states is at times visually obvious (top row), somehow visible (middle row) and hard to visualize (bottom row). The difference in the states was correctly detected by our algorithm in all three instances shown.
