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.
Visual crowding. When fixating the upper spot, the central letter U on the right is difficult to identify because the flanking letters fall within its critical spacing, and features within this area are inappropriately integrated. When fixating the lower spot, the U can be identified more easily because the flanking letters fall outside this compulsory integration zone.
