Hi, I am trying to set up a subdomain -- blog.richardcrablephotos.com. This will link to domains.exposure.co. Exposure.co provides the following instructions, which I followed - but with no success so far:
Add a CNAME for your desired subdomain (e.g. blog.yourdomain.com, photos.yourdomain.com etc) and point it to domains.exposure.co Redirects: You will need to enter domains.exposure.co exactly. Any other value will not work with Exposure. Redirects or masking setups, like CloudFlare, are not supported.
If you use CAA records please add a CAA record for your subdomain that is set to letsencrypt.org to make sure we can issue your free SSL certificate.
SSL: Services like CloudFlare that provision their own SSL certificates will need that feature disabled. Exposure provisions SSL certificates for any domain added and 3rd parties will cause conflicts and impact your sites availability.