[dns-operations] A survey of the actual use of DNS options?

Colm MacCárthaigh colm at stdlib.net
Mon Jun 17 00:29:40 UTC 2013

At this point, several providers are using EDNS client subnet. That's
probably the most common option, by several orders of magnitude.

On Sun, Jun 16, 2013 at 1:43 PM, Stephane Bortzmeyer <bortzmeyer at nic.fr>wrote:

> Does anyone know of a survey of the actual use of EDNS options, as
> seen by authoritative name servers? A quick glance at the traffic of
> .FR name servers seem to indicate that they are almost never used (a
> few 3, NSID and a few 5, DAU, even if the RFC on DNSSEC signaling of
> algorithms is not yet published).
> Does anyone has good data?
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