[dns-operations] 1.1.1.1 omits EDNS OPT RR when serving "locally served zones"

[Vladimír Čunát]

On 20/02/2026 20.36, Tatsuya Jinmei via dns-operations wrote:
> Thank you for the prompt response. Yes, I know the practice of 
> synthesizing NXDOMAIN. That's all about RFC6303.
> My question was about the missing EDNS OPT RR in the synthesized 
> response. It's good to know that it's juse likely a bug.

The SOA is also useful in such responses.  For caching.  But I expect 
it's mainly risk for CloudFlare; they might provoke too frequent 
retries/refreshes.

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