A simple script to test IPv6 day participants
Switch branches/tags
Nothing to show
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Failed to load latest commit information.


ipv6day – Get The Results Yourself


The ipv6day script is a very simple perl program that tests sites for DNS entries for IPv6 data. Most importantly, it doesn’t just check for an AAAA record for the web server. That’s not enough to be considered truly IPv6 enabled. At a minimum, the DNS servers for a given domain must be accessible over IPv6 as well. Since EMail is still a fairly popular transport thees days, the script also checks for a valid IPv6 MX record.

The other big changes coming to the net involve DNS Security (DNSSEC). Since these domains are updating for IPv6, they certainly should be doing DNSSEC at the same time. So I’m querying for two different types of critical DNSSEC data as well: whether the domain is hosting a DNSKEY and whether the domain’s parent has a DS record pointing to the domain’s key.

Many more tests could be done for both IPv6 and for DNSSEC, but the script at this time has only striven to produce a simple set of tests.


A list of sites that indicated they would participate in the 2011 World IPv6 Day can be found in “2011-sites.txt” so that this is possible:

Future work

Any simple program should be subject to feature creep…

  • Maybe make it perform a service availability test too.
  • deal with CNAMEs for MX and NS records
  • make the calls asynchronous so it doesn’t take a year to run on a long list.
  • 3 letters: css