How do I really (dig) flush the DNS cache on OS X 10.9?

I'm on OS X 10.9, according to support.apple.com I can flush the cache with

sudo killall -HUP mDNSResponder

Unfortunately this does not really refresh my DNS cache at all, also not like this:

dscacheutil -flushcache; sudo killall -HUP mDNSResponder

E.g.

$ dig www.example.com|grep CNAME
www.example.com.    83955   IN  CNAME   example.com.

If cache were cleared it would be showing a number close to 86400, 3600, 300 or 60 are the TTL values offered by my domain name provider).

If I add @dns-host to dig it works as expected:

$ dig @ns0.transip.net www.example.com|grep CNAME
www.example.com.    60  IN  CNAME   GITHUBACCOUNT.github.io.

I also tried the other commands on that page. In the meantime I work around this by ssh'ing onto one of my servers and check things there. But I'd like a proper way to really refresh all DNS cache on my Mac. How can I do that?