If you need to protect multiple third-level domains (for example, mail.yourdomain.com, shop.yourdomain.com, test.yourdomain.com), you can do this in two ways — either individually or by adding a wildcard record.
Adding Each Subdomain Individually
This is the recommended approach if you want to use free Let’s Encrypt SSL certificates, which our service automatically issues and renews. Simply add each subdomain to the list of protected objects in your dashboard. For bulk addition, you can use our API.
Adding a Wildcard Record (with the * Symbol)
You can add a single protected object in the format *.yourdomain.com. This configuration will automatically cover all subdomains under yourdomain.com.
Important Limitation: For a wildcard domain like *.yourdomain.com, our system cannot automatically issue and renew a Let’s Encrypt SSL certificate. You will need to:
- Purchase and issue a wildcard certificate (for example, *.yourdomain.com) from a third-party Certificate Authority.
- Manually upload and renew this certificate in the SSL Certificate section of your dashboard whenever it expires.
If automatic SSL renewal is critical for you and you don’t need to protect random or temporary subdomains, add each subdomain individually.
The wildcard configuration is a good choice when you need to protect a large number of predefined subdomains and are ready to manage the SSL certificate yourself.
