Wildcard third level



Will Let’s Encrypt issue third level wildcard certs? For example *.two.example.com?


Hi @ivankisic,

Yes. Let’s Encrypt will issue a certificate with a name like this.


An “asterisk” as I have been explained:
An asterisk does equal ANY (but not ALL)
That is, it will match all letters, numbers and even dashes and underscores.
But it will not match a period, so it can’t crossover onto lower subdomains.

won’t cover:

But YES you can get certs for those wildcards:
And you can even put them all on one cert.
But as before…
Won’t cover:

(rinse and repeat - up to 100 names on a single cert)


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