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CNAME & SSL

Learn how to add and configure a CNAME to map your custom domain and enable secure HTTPS delivery.

The CNAME & SSL tab allows you to associate custom domains with a CDN Resource, configure the SSL certificate used for HTTPS connections, define supported TLS versions, and verify that your DNS configuration correctly points to the assigned Medianova hostname.

Before configuring HTTPS, ensure that your custom domain is configured with the required CNAME record and that an appropriate SSL certificate is available in your organization.

If you need to create a new SSL certificate, use the SSL / TLS page before configuring this resource. For certificate creation and management, see Upload and Manage SSL Certificates.

Add a Custom Domain (CNAME)

1

Open the CDN Resource

Navigate to CDN → CDN Resources, then open the resource you want to configure.

2

Open the CNAME & SSL Tab

Select the CNAME & SSL tab.

3

Add a Custom Domain

Enter the hostname that users will use to access your content.

Example:

cdn.example.com

Click Submit to save the configuration.

4

Configure DNS

Create a CNAME record with your DNS provider that points your custom domain to the hostname assigned to your CDN Resource.

Example:

cdn.example.com    CNAME    your-resource.mncdn.com

After DNS propagation completes, requests to your custom domain are routed through the associated CDN Resource.

Configure the SSL Certificate

1

Select an SSL Certificate

Choose the SSL certificate that will secure HTTPS connections for this resource.

Available options may include:

  • Shared SSL

  • SNI

  • Custom SNI

  • Disabled

Certificates created from the SSL / TLS page become available after they have been successfully issued.

2

Save the Configuration

Click Submit to apply the selected certificate.

The selected certificate is used for HTTPS connections to every configured custom domain.

Configure Supported TLS Versions

Select the TLS versions that clients are allowed to use.

For most deployments, enable:

  • TLS 1.2

  • TLS 1.3

Click Submit to save your changes.

CNAME Verification

After the required DNS mapping is configured, Medianova verifies that the configured domain correctly resolves to the assigned CDN Resource. For resource types that use custom domains, this verification is performed against the configured CNAME record.

Verification status is displayed throughout the Control Panel to help identify DNS configuration issues before production traffic is served.

Verification Status

Status
Description

CNAME verified

All configured domains correctly point to the assigned CDN hostname.

Some CNAMEs incorrect

Some configured domains are correctly configured, while one or more domains are missing or point to an incorrect target.

Not verified

The required DNS mapping is missing or incorrect for the configured domain or domains.

When multiple domains are configured, Medianova verifies each domain independently. The displayed status reflects the overall DNS verification result.

CDN Resources List

The CDN URL / CNAME column displays the current verification status for each resource.

Hover over the verification badge to view the DNS verification result for each configured custom domain.

Resource Overview

If one or more custom domains require attention, the Overview page displays an Action needed panel describing the affected domains.

The panel includes:

  • Host

  • Target

  • Current DNS status

  • Copy-to-clipboard actions

  • Check now

  • Instructions

After the required DNS record has been configured and successfully verified, the notification is automatically removed.

During Resource Creation

Depending on the selected resource type and SSL configuration, the Create CDN workflow displays the DNS configuration required before the resource is activated.

If displayed, the guidance includes the required host name and target hostname needed to configure the CNAME record.

Verify the Configuration

Use Check now from the Overview page to trigger a new DNS verification immediately, or wait for the automatic background verification.

Verify DNS Resolution

Run:

The hostname should resolve to the assigned Medianova hostname.

Verify HTTPS

Run:

Verify that:

  • the HTTPS connection succeeds;

  • the expected SSL certificate is presented;

  • the negotiated TLS version matches your configuration.

Troubleshooting

DNS changes are not visible

DNS propagation depends on your DNS provider and configured TTL values. It may take several minutes before updated records become visible globally.

CNAME verification failed

Verify that:

  • the required DNS mapping points to the hostname assigned to the CDN Resource;

  • the DNS change has propagated;

  • the resource is enabled;

  • the selected SSL configuration and resource type are correctly configured.

For resource types that use custom domains, verify that the CNAME record points to the assigned CDN hostname. For Dynamic Resources, verify that the configured Website URL resolves correctly to the assigned CDN Resource.

After correcting the DNS configuration, use Check now or wait for the next automatic verification.

HTTPS certificate does not match the domain

Verify that the selected certificate covers every configured custom domain through its Common Name (CN) or Subject Alternative Names (SANs).

Free SSL certificate is unavailable

If you recently requested a Free SSL certificate, DNS validation may still be in progress.

Complete DNS validation from the SSL / TLS page before selecting the certificate for this resource.

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