In the coming months, your Internet service provider (ISP) will begin to supply IPv6 for your service. Although changes may not be noticeable, your ISP may also recommend that you upgrade or replace any router or wireless access point, in order to be IPv6 compatible. When your ISP has upgraded your service and your hardware is configured to take advantage of it, you will have IPv6 access.

As your favorite web sites offer their services on both IPv4 and IPv6, your computer will automatically use the best one available to you. Most people will not notice the difference between the way your computer transmits data on the Internet. However, there will be some users that will experience issues because their systems aren't configured correctly.

On World IPv6 Launch Day, June 6, 2012, Yahoo! and many other major web sites will begin publishing their web sites on both IPv4 and IPv6. You can find out before this date if you will be affected by visiting the IPv6 Help Site and clicking on the test button. Our test page will identify if your system is one of the few that is misconfigured.

After World IPv6 Launch Day, some customers may have difficulties reaching popular web sites. For Yahoo! sites, this will initially affect the Yahoo! Homepage (www.yahoo.com), My Yahoo!, Yahoo! News, OMG, and Shine. These sites will be very slow to load - as much as a minute - or fail to load entirely. Other Yahoo! sites may not include images, colors, and/or fonts. If you are experiencing these problems, click the Start IPv6 Test button to the right of the test to receive further information.