curl/docs/cmdline-opts/doh-insecure.md

c	SPDX-License-Identifier	Long	Help	Added	Category	Multi	See-also	Example
Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.	curl	doh-insecure	Allow insecure DoH server connections	7.76.0	dns tls	boolean	doh-url insecure proxy-insecure	--doh-insecure --doh-url https://doh.example $URL

--doh-insecure

By default, every connection curl makes to a DoH server is verified to be secure before the transfer takes place. This option tells curl to skip the verification step and proceed without checking.

WARNING: using this option makes the DoH transfer and name resolution insecure.

This option is equivalent to --insecure and --proxy-insecure but used for DoH (DNS-over-HTTPS) only.