(Click on “en” at the top left of the page to read it in English.)
As they say on the page:
Knot DNS is a high-performance authoritative-only DNS server which supports all key features of the domain name system including zone transfers, dynamic updates and DNSSEC.
I’ve not yet had a chance to work with it myself, but Jan-Piet Mens wrote about his experience with Knot over on his site. To try it yourself, you can download Knot DNS from the site as a tarball or clone the git repository.
It’s great to see new tools and servers emerging that include DNSSEC support and it will be interesting to watch how Knot DNS evolves.