1. DNS/RFC/8906/consequences

In particular, the base DNS specification [RFC1034] [RFC1035] and 
  the EDNS specification [RFC6891], when implemented, need to be followed.

The consequences of servers not following the RFCs will only grow
 if measures are not put in place 
 to remove non-compliant servers from the ecosystem.  

Working around issues due to non-compliance with RFCs is not sustainable.

RFCに非準拠で発生する問題を回避していくのは持続可能ではない。

運用に頼ってしまったDNSに将来はない。-- ToshinoriMaeno 2020-11-23 09:28:33