Test your DNS resolver for DNSSEC Suitability
The thoughtful people over at DNS-OARC are hosting a server that enables you to test the suitability of your resolver for the DNSSEC switchover, which is already underway.
The short version is, issue the command:
dig +short rs.dns-oarc.net txt
and check whether EDNS is used and that your reply is 4,000 bytes or over in size.
