Sixy.ch aims to be a directory of web sites that are accessible via IPv6. IPv6 is the next-generation Internet Protocol that solves the shortage of addresses with the current version, IPv4, and adds new features that facilitate end-to-end communication.
The deployment of IPv6 currently seems to be stuck in a chicken-and-egg situation: little content is accessible over IPv6, and content providers (web site owners) don’t have an incentive to IPv6-enable their web sites because few people have IPv6 Internet access. On the other hand, as little web sites are accessible via IPv6 (and almost none only via IPv6), consumers aren’t demanding IPv6 support from their ISPs.
With Sixy.ch, those that already have IPv6 access know something to do with it, and web site owners get a (however small) incentive to make their web site future proof.
Source [ sixy.ch ]