Help Center/ Cloud Certificate Manager/ FAQs/ FAQs/ SSL Certificate Application and Purchase/ SSL Certificate Selection/ How Do I Select an SSL Certificate?
Updated on 2023-12-20 GMT+08:00
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How Do I Select an SSL Certificate?

This topic describes all you want to know about how to select an SSL certificate that meets your business needs.

Which Certificate Type Is Suitable for Me?

When you purchase SSL certificates, you can select OV, OV Pro, EV, EV Pro, or DV (Basic) for Certificate Type.

  • EV certificates are recommended for finance and payment service businesses. For other enterprises, OV or higher-level certificates are recommended.
  • For use on mobile devices or in interface invocation, OV or higher-level certificates are recommended.
  • If you do not have a business license, you can apply for only basic DV certificates.

Which Certificate Authorities Are Available?

The following table lists the CAs supported by SCM and the certificate types each CA provides.

Promotion activities

  • Single domain names (using domain name www.a.com and root domain name a.com as an example)
  • Wildcard domain name (using domain names *.a.com and *.a.b.com as an example)

Which Domain Type Should I Select?

You need to confirm how many domains you want to protect. In SCM, options for Domain Type can be Single domain, Multiple domains, or Wildcard.

Table 1 Domain Type

Parameter

Description

Single domain

Only one common domain name can be associated.

If you have only one domain name, select Single domain.

Multiple domains
  • Multiple domains can be added to a certificate. Multiple single domains can be set for domains. For example, you can use one multi-domain certificate to protect domains example.com, example.cn, and test.com.
  • You need to configure the domain quantity based on the number of domains you need to protect with a single multi-domain certificate.
  • The number of domain names ranges from 2 to 250. A maximum of 250 domain names can be protected with a certificate.

If you have multiple domain names, select Multiple domains. Purchase domain names of the required quantity on the purchase page.

Wildcard domain
  • Only one wildcard domain name can be associated.

If all of your domain names are at the same level, select Wildcard.

To purchase a wildcard-domain certificate, you need to pay attention to the domain name matching rules. Table 2 are some examples.

Table 2 Examples of wildcard-domain matching rules

Domain name

Matched Domain Name

Unmatched Domain Name
  • For wildcard-domain certificates, only those associated with root domain names support the domain names. For example:
  • If the www subdomain is associated with a certificate, the certificate also protects the root domain. For example:
  • Once your digital certificate is issued, the associated domain cannot be changed.

Table 3 provides domain type selection examples.

Table 3 Domain type selection examples

Example Scenario

Example Domain Name

Domain Type Selection

Quantity Selected

You have only one domain.

   

Single domain

Single-domain type. The value of Quantity is fixed at 1.
  

Single domain
  

Single domain

You have multiple domains.

Two domains

Multiple domains

2

Three domains

Multiple domains

3

Four domains

Multiple domains

4

You have multiple domains at the same level.

Wildcard domain

Wildcard domain type. The value of Quantity is fixed at 1.