By "delegation" do you mean changing DNS on a registered Route53 domain to Cloudflare?
By "delegation" do you mean changing DNS on a registered Route53 domain to Cloudflare?

Let's Encrypt certificate chain change affect Origin server certificates, or are those signed by cloudflare specifically?

*.pages.devCODE_MOVED for unknown code block during dev mode. What does this mean? Can't seem to pinpoint it. Unless its just miniflare doing it