I noticed that you have a snazzy URL at https://cylc.org, but currently it just issues a redirect to https://cylc.github.io/. The canonical URL should be changed to this.
Proposed Solution
Looking at the DNS it seems that it is being proxied by Cloudflare.
Cloudflare needs to be setup with CNAME records for www.cylc.org pointing to cylc.github.io, and cylc.org[^1] (the root domain, which is @ in Cloudflare).
GitHub needs to be setup with www.cylc.org in the custom domain setting in GitHub pages section of this repository's settings.
[^1]: Technically you can't have a CNAME record at the root domain, but Cloudflare does some magic to make this effectively possible.
Problem
I noticed that you have a snazzy URL at https://cylc.org, but currently it just issues a redirect to https://cylc.github.io/. The canonical URL should be changed to this.
Proposed Solution
Looking at the DNS it seems that it is being proxied by Cloudflare.
Cloudflare needs to be setup with CNAME records for
www.cylc.orgpointing tocylc.github.io, andcylc.org[^1] (the root domain, which is@in Cloudflare).GitHub needs to be setup with
www.cylc.orgin the custom domain setting in GitHub pages section of this repository's settings.[^1]: Technically you can't have a CNAME record at the root domain, but Cloudflare does some magic to make this effectively possible.