What Is the Relationship Between a Domain Name and an SSL Certificate?
An SSL certificate is used to protect a website. To make an SSL certificate work, bind it to the domain name of the website you want to protect. To that end, you need to confirm the certificate type, certificate authority, domain name type, and domain name when you make a purchase.
How Many Domain Names Can Be Protected with an SSL Certificate?
When you purchase a certificate, you will select domain type according to your business needs. The number of domain names that can be protected with a certificate varies depending on domain name type. For more details, see Table 1.
Certificate Types |
Supported Domain Name Type |
Number of Domain Names that Can Be Protected |
|---|---|---|
OV and OV Pro |
Single domain |
One |
Multiple domains |
The number of domain names ranges from 2 to 250. A maximum of 250 domain names can be protected with a certificate. |
|
Wildcard domain |
One For details about the domain names supported by wildcard-domain certificates, see What Domains Can Wildcard-Domain Certificates Support? |
|
EV and EV Pro |
Single domain |
One |
Multiple domains |
The number of domain names ranges from 2 to 250. A maximum of 250 domain names can be protected with a certificate. |
|
DV (Basic) - GeoTrust entry-level SSL certificates |
Single domain |
One |
Wildcard domain |
One For details about the domain names supported by wildcard-domain certificates, see What Domains Can Wildcard-Domain Certificates Support? |
|
DV (Basic) - DigiCert free SSL certificate |
Single domain |
One |
How Many SSL Certificates Can Be Used for a Domain Name?
There is no restriction. You can purchase multiple certificates for the same domain name. The certificates will take effect when you use them to applications or install them on servers.
A certificate is a one-off product. If the current certificate cannot meet your requirements or is about to expire, you can purchase a new certificate that matches the domain name type and use the new certificate to the target domain name.
About Required Domain Name Details FAQs
- How Do I Enter a Domain Name for a Certificate When Applying for an SSL Certificate?
- What Are the Differences Between a Single-Domain Name, Multi-Domain Name, and Wildcard-Domain Name in SCM?
- What Is the Relationship Between a Domain Name and an SSL Certificate?
- What Domains Can Wildcard-Domain Certificates Support?
- What Domain Name Should I Use to Apply for an SSL Certificate?
- Can I Change the Primary Domain Name Associated with a Certificate?
- Does the Relationship Between the Primary Domain Name and Additional Domain Name Have Any Impact on Domain Names?
- How Do I Make a CSR File?
- What Are the Differences Between the CSR Generated by the System and the CSR Made by Yourself?
- Domain-related Concepts
- Problems Related to Domains
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