Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

NIST IPv6 Deployment Monitor and Test System

IPv6 Monitor Logo

This is a on-line test and measurement tool that provides continuous test and measurement of the completeness, quality and extent of IPv6 deployment in the Internet.

The system is accessible from any web browser at the following URL:



The system provides a continuous test and measurement of that status of IPv6 deployment in public facing servers in the US Government and industry.    Users adopting IPv6 for the first time on production systems / servers can use this site to see an external test of the interoperability and performance of new IPv6 enabled Internet services.


Created August 15, 2016, Updated November 15, 2019