Is it possible to create fourth level subdomains. In my case, I created a CNAME “
direct.book.example.com” It’s said that you can’t create sub-sub-domains. Did you face this problem? If yes, could you tell me the solution?
You can create them in DNS, but they won’t work if proxied with HTTPS and the Universal Certificate.
This tutorial covers a possible reason for the SSL_ERROR_NO_CYPHER_OVERLAP and ERR_SSL_VERSION_OR_CIPHER_MISMATCH errors (Firefox and Chrome respectively) when seen on a subdomain.
The Cloudflare universal certificates cover example.com and *.example.com. This means that it covers any subdomain one level below the domain you signed up with.
It will cover www.example.com and subdomain.example.com, as these are one level below the root domain, example.com.
The certificate will not cover www.sub…
I just created one. Dom’s instructions still apply, though.
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