Hi list, just FYI that Cloudflare's test server is upgrading to draft-ietf-tls-esni-10 this morning. It should finish rolling out in a few hours. Note that we've dropped support for draft-ietf-tls-esni-09.
The endpoint is https://crypto.cloudflare.com. You'll also find our ECH config in the HTTPS resource record. Best, Chris P.
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