Editor’s Note: We published a version of this post yesterday with a couple inaccuracies. We took down the post temporarily while we made corrections.

On June 8, together with major web companies such as Facebook and Yahoo!, we will enable IPv6 on our main websites for 24 hours. We do not anticipate any significant impact on AdWords, AdSense and DoubleClick users or their campaigns. Google supports IPv6 because it’s critical to the future of the open web. With limited address space, the Internet is bursting at the seams, and IPv6 is the best solution.

The good news is that most users don’t need to do anything special to prepare for World IPv6 Day. Our current measurements suggest that the vast majority (99.95%) will be unaffected. However, in rare cases, people may experience connectivity problems, often due to misconfigured or misbehaving home network devices.

Visit our IPv6 test website. It will verify IPv6 compatibility, and provide tips for troubleshooting if needed.

Learn more about IPv6, or read about World IPv6 Day.