SSL

OpenPanel automatically generates and renews SSL certificates for all domains using Let's Encrypt or ZeroSSL.

You can also configure a custom SSL certificate for any domain via OpenPanel > Domains > SSL.

Custom SSL​

To use your own SSL certificate:

1. Upload your certificate files via OpenPanel > FileManager.
2. Go to OpenPanel > Domains, then click SSL next to the domain.
3. Under Configure custom SSL, enter the file paths for:
   • Certificate file (.crt)
   • Private key file (.key)
4. Click Configure.

Once configured, your custom certificate details will appear on the same page.

AutoSSL​

AutoSSL is the default option in OpenPanel. If you're adding a new domain, no action is required.

To switch from a custom certificate back to AutoSSL:

1. Navigate to OpenPanel > Domains and click SSL for the domain.
2. Click Switch back to AutoSSL.

The certificate will be re-issued automatically after the domain is accessed via https://. Once generated, it will be displayed on the same page.

Requirements​

To ensure successful SSL generation:

• The A record for the domain must point to the server's IPv4 address.
• The DNS must be fully propagated. Use tools like whatsmydns.net to check.
• The domain must be accessed via https:// at least once to trigger certificate generation. Open the domain in a browser using https.

If:

• The domain was just added,
• DNS is not yet pointed to the server, or
• The domain has not been accessed over https://,

Then the SSL section will show “No certificate found.”