[DanielDent]

I published dnscookie.com in late 2015. I google "dns cookies" and a few other things terms, was surprised that the terminology appeared unused, and it seemed suitable for the concept I was describing.

In May 2016, RFC 7873 was published which also uses the term "DNS cookies".

These two things share a name but have different meanings. The naming collision is an unfortunate coincidence.

[bluejekyll]

Oh! Wow! That was a huge assumption on my part.

I had assumed it was the afore mentioned RFC. That explains why the site make no mention of EDNS or OPT records.

TIL...