What if the upstream server does not support edns

1 as mentioned in the question, the upstream domain name server does not support the edns protocol
due to the location deviation in dns resolution, it is necessary to support the edns protocol. Now that the code is finished, it is found that the upstream dns domain name server does not support the edns protocol. What should I do? Want to build your own server?
ps: (1) although Tencent, Google and other public dns support it, the parsing speed is not flattering.

 (2)(1)pass

2 ask the god to give us some advice! Kneel down and thank orz

Dns

Jan.08,2022

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