Two level subdomain letsencrypt certificate with nginx

I was configuring certbot for nginx on Ubuntu 18.04 droplet, I’m securing a two level subdomain, e.g.: and certbot says that the cert is ready but when I go to the page I get an ERR_SSL_VERSION_OR_CIPHER_MISMATCH on Chrome, and ssllabs says “Failed to communicate with the secure server”.

So, in some sites says that other clouds doesn’t provide support for securing two level subdomains, like here:

But I don’t find any info about this on DigitalOcean, can you help me with that please?

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Hi, It is definitely possible to get and deploy Let’s Encrypt certificate for two-level subdomains in DO. Did you restart nginx after setting up the certificate ? First, check if nginx server blocks files have correct syntax:

sudo nginx -t

If the syntax is OK, restart nginx

sudo systemctl restart nginx

If you still have the same issue, go through all the steps of this tutorial. Maybe you missed something.