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使用 DNS CNAME 验证方法验证域控制权

通过 DNS CNAME 记录证明对域的控制权

Use these instructions to validate a domain using the DNS CNAME DCV method. In the domains DNS as a CNAME record, add _dnsauth in the hostname field. Then, add [random_value].dcv.digicert.com to the target host field, to point the random value and domain to DigiCert at dcv.digicert.com.

检查 TLS/SSL 证书订单的状态，然后使用 DNS CNAME 记录 DCV 方法证明对订单上所列域的控制权。有关更多信息，请参阅证明对您的 SSL 证书订单上所列域的控制权。

Before you begin

For faster certificate issuance, validate domains before ordering your OV and EV TLS certificates. Learn more about domain prevalidation.

Acronyms used in this article: Domain Name System (DNS), Canonical Name (CNAME), Transport Security Layer (TLS), organization validation (OV), extended validation (EV)

第 1 步：检查待处理订单的状态

  1. 在您的 CertCentral 帐户中，转到订单的订单编号详细信息页面。

    1. In the left main menu, go to Certificates > Orders.

    2. On the Orders page, in the Order # column, select the certificate's order number link.

    3. For CertCentral Subscription accounts, the steps to access the Order # detail page are different.

      1. In the left menu, go to My Digital Trust Products > Certificates.

      2. On the Certificates page, in the Order # column, select the certificate's order number link.

  2. 在订单编号详细信息页面的订单状态部分，检查订单的证书颁发状态（订单是否在等待完成域或组织验证？）。

    When validation is done the Certificate status section no longer appears on the Order # details page.

  3. Under What do you need to do, select the domain's link you want to validate.

  4. In the Prove control over domain window, in the Domain control validation (DCV) method menu, select DNS CNAME Record and then select Save.

  5. Under 2. Add the DigiCert provided token to your CNAME record, in the Order token box, copy the DigiCert-provided random value.

    The random value expires in 30 days.

  6. Create your DNS CNAME record.

    1. Go to your DNS provider’s site and create a new CNAME record.

      For more detailed instructions for creating or updating a DNS CNAME record, try the following resources:

      • Your DNS provider's documentation.

      • DigiCert knowledge base for articles like this one: Create a CNAME Record.

    2. In the hostname field (or equivalent), enter _dnsauth.

    3. In the record type field (or equivalent), select CNAME.

    4. In the target host field (or equivalent), enter [random_value].dcv.digicert.com to point the CNAME record to dcv.digicert.com.

    5. Select a Time-to-Live (TTL) value or use your DNS provider's default value.

    6. Save the record.

    重要

    On October 28, 2025, DigiCert ended support for the [random_value] prefix DNS CNAME record configuration. To learn more about this change, see the October 28 change log entry.

  7. Complete domain validation.

    1. In CertCentral, go to the certificate's Order # details page.

      1. In the left menu, go to Certificate > Orders.

      2. On the Orders page, in the Order # column, select the certificate's order number link.

      For CertCentral Subscription accounts:

      1. In the left menu, go to My Digital Trust Products > Certificates.

      2. On the Certificates page, in the Order # column, select the certificate's order number link.

    2. On the Order # details page, in the Certificate status section, under What do you need to do, select the domain link.

    3. In the Prove control over domain window, under 5. Complete domain validation, select Check record.

本节内容如下: