The only reasonable interpretation of "possibly prefaced" is that the CNAMEs either come first or not at all (hence "possibly"). Nowhere the RFC suggests that t

The only reasonable interpretation of "possibly prefaced" is that the CNAMEs either come first or not at all (hence "possibly"). Nowhere the RFC suggests that they may come in the middle. Something is broken in Cloudflare since a couple of years. It takes a very specific engineering culture to run the internet and it's just not there anymore.