Do you know why they fail to implement ipv6 for years? I mean it's shame when tech-oriented website/service can't keep up with new technologies.
> Until then you can derive and use the IPv6 address for their old Cloudflare endpoint.
Would be cool if you could share more information how to do that.
Little motivation to make changes and their anti-spam systems only handle IPv4.
> Would be cool if you could share more information how to do that.
Put the bytes of the IPv4 Cloudflare endpoint at the end of a Cloudflare IPv6 Anycast prefix and voila. Fastly is similar but you take the bytes containing the site ID in the IPv4 address.
Also seems they didn't forget to update Cloudflare this time around. :)
HN Cloudflare IPv4: 104.16.104.110
HN Cloudflare IPv6: 2606:4700::6810:686e