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Dear service owners: do *not* merely add an Yggdrasil IPv6 address to your existing https website. It will always fail due to certificate mismatch and you can't get DV cert on Yggdrasil address.

Do create a HTTP-only mirror on Yggdrasil IPv6 or dedicated hostname - Yggdrasil already provides transport encryption so TLS is to some extent redundant.

So:

webcookies.pub (IPv4+IPv6)

y.webcookies.pub (Yggdrasil)