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CDN:Deploy an SSL certificate to multiple domain names

Last Updated:Jun 02, 2026

If multiple accelerated domain names share the same SSL certificate, you can deploy it to all of them at once through the Alibaba Cloud CDN console—no per-domain configuration needed.

Billing

HTTPS secure acceleration is a value-added service billed by the number of HTTPS requests. Data transfer plans cannot offset these fees. For pricing details, see Billing of HTTPS requests for static content.

Prerequisites

Before you begin, make sure you have:

Important

Only certificates purchased from Alibaba Cloud Certificate Management Service support batch deployment through the CDN console. Certificates issued by a third-party certificate authority (CA) must be configured per domain name. For details, see Configure an SSL certificate.

Deploy or renew an SSL certificate

  1. Log on to the Alibaba Cloud CDN console.

  2. In the left-side navigation pane, click HTTPS Center.

  3. On the Certificate Center page, click Add Certificate.

  4. On the Add Certificate page, configure the following parameters.

    Parameter

    Description

    Certificate Source

    Only SSL Certificates Service is supported. Select a certificate purchased from Certificate Management Service.

    Certificate Name

    Select the certificate to deploy.

    Certificate (Public Key)

    The PEM-encoded public key. For certificates purchased from Certificate Management Service, the system retrieves this automatically.

    Private Key

    The PEM-encoded private key. For certificates purchased from Certificate Management Service, the system retrieves this automatically.

  5. Click Next.

  6. Select the domain names to associate with the certificate.

    Important

    If a selected domain name already has a certificate, the existing certificate is replaced by the one selected in this step. When Certificate Source is set to SSL Certificates Service, you can deploy or renew the certificate for multiple domain names at once.

    Associate domain names with a certificate

  7. Click OK to deploy or update the certificate.

  8. (Optional) To enable end-to-end HTTPS encryption, configure POPs to redirect requests to origin servers over HTTPS. Origin servers must support HTTPS. For details, see Configure the origin protocol policy.

Verify the certificate deployment

The certificate takes effect within 1 minute of deployment. To confirm HTTPS is active, access a resource on the accelerated domain name over HTTPS. A lock icon in the browser address bar confirms that HTTPS secure acceleration is working.

Lock icon in the browser address bar

View certificate details

  1. Log on to the Alibaba Cloud CDN console.

  2. In the left-side navigation pane, click HTTPS Center.

  3. On the Certificate Center page, click the certificate you want to view.

The page shows the SSL certificate details for the domain name. The private key is not displayed. Keep your certificate information confidential.

FAQ

API reference

API

Description

CreateCdnCertificateSigningRequest

Creates a certificate signing request (CSR).

DescribeDomainCertificateInfo

Queries certificate information for an accelerated domain name.

SetCdnDomainSSLCertificate

Enables, disables, or modifies the certificate for a domain name.

SetCdnDomainCSRCertificate

Configures an SSL certificate for a specified domain name.

DescribeCdnDomainByCertificate

Queries accelerated domain names by SSL certificate.

DescribeCdnCertificateDetail

Queries detailed information about an SSL certificate.

DescribeCdnCertificateList

Queries certificates.

DescribeCertificateInfoByID

Queries information about a specified SSL certificate.

DescribeCdnHttpsDomainList

Queries SSL certificate information within your Alibaba Cloud account.

DescribeUserCertificateExpireCount

Queries the number of domain names with expiring or expired SSL certificates.

SetCdnDomainSMCertificate

Enables or disables a ShangMi (SM) certificate for a domain name.

DescribeCdnSMCertificateList

Queries SM certificates for an accelerated domain name.

DescribeCdnSMCertificateDetail

Queries details about an SM certificate.