We need to give a lot of thanks to Eric Vyncke for this fine innovation….
Put a 1-pixel image on your web site that lives on an IPv4/IPv6 dual stack host. This 1-pixel image is actually a PHP script that uses a special trick to figure out if the client has IPv6, whether it’s coming from a teredo tunnel, v4 or v6 preferred, and correlates it with OS and Browser.
It’ll be very interesting to see how the tides change as we near the feared IPv4 depletion date, which as of today is predicted to be Sept 2011.
You can put the 1-pixel image on your site and let your site’s traffic help feed the data.
Here are Eric’s stats:
http://www.vyncke.org/countv6/stats.php
Here are my stats:
http://ipv6poc.com/countv6/stats.php
I put these 1-pixel images at the footer of my blog pages:
<img src="http://ipv6poc.com/countv6/image4.php" width="1" height="1" border="none"> <img src="http://www.vyncke.org/countv6/image4.php" width="1" height="1" border="none">
If you want your site to feed this experiment, just drop the above two images just before the </body> tag on your site.
If your site gets more than 25,000 page hits a day, please reach out before putting these images on your site.
Oh, and you can get the source code for this here: http://sourceforge.net/projects/countv6/
To answer the question, here are the percentages of people that visit Eric’s site that have v6 over the last 2 years:
Interesting that it’s above 10%. It was on an upward trend till about Oct 2009, then took a sudden dive.
DaveK.
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