How to extend the validity of an ssl certificate to a subdirectory?

Question

Apache HTTP Server

Good day.
I have a domain, let it be domen.ru
Using Let's Encrypt, I got an ssl certificate for it and bound it to the domain as follows.
SSLEngine On
SSLCertificateFile conf/ssl/certificate.crt
SSLCertificateKeyFile conf/ssl/private.key
SSLCertificateChainFile conf/ssl/ca_bundle.crt
But the whole point is that I have published a host with the address https://domen.ru/poddomen and there is a need make sure that the ssl certificate is distributed there as well.
Please tell me how can I do this.
I would also be very grateful for the links to the manuals :)

Answer 1

Make your own certificate for each subdomain