Can one SSL certificate support multiple domain names?

One SSL certificate can support binding multiple domain names of different types. If you choose the type of multi-domain SSL certificate (SAN SSL) or wildcard SSL certificate (Wildcard SSL), you can bind multiple domain names with one SSL certificate, but the binding The domain name types for .

 

1. Multi-domain SSL certificate: bind multiple arbitrary domain names

Multi-domain SSL certificate, also known as SAN SSL, or UCC SSL. A multi-domain SSL certificate supports the binding of multiple arbitrary different domain names, allowing them to be protected at the same time. For example, under SAN SSL, the main domain name is example.com, then you can add multiple completely different domain names, as shown in the figure below.

 

WoSign SSL certificate super-secure series, super-true series and super-fast series all support binding multiple domain names, including WoSign super-fast SSL multi-domain type, super-true SSL multi-domain type, super-true SSL Pro multi-domain type, and super-secure SSL certificate Multi-domain, super-secure SSL Pro multi-domain, and the super-true SSL V3 multi-domain and super-secure SSL V4 multi-domain of the SM2 algorithm, users can choose according to their needs. For the price of a new domain name, please consult WoSign Customer service for details.

2. Wildcard SSL certificate: bind all sub-domain names under the same main domain name

Wildcard SSL certificate , also known as wildcard SSL. A wildcard SSL certificate supports binding all sub-domains under the same domain name, without limiting the number of sub-domains at this level, and adding new sub-domains at this level does not require re-application for certificates or additional fees, which is more scalable and flexible The SSL certificate type is suitable for scenarios where multiple subdomains need to be expanded and protected at any time, as shown in the figure below. (Tip: To ensure application security, it is recommended that an important subdomain name of the enterprise need to apply for an SSL certificate separately.)

 

However, it should be noted that wildcard SSL certificates can only be bound to sub-domain names, and cannot bind sub-domain names across levels. For example:

 

Both WoSign SSL Certificate Super-True and Super-Fast series support binding wildcard domain names, including WoSign Super-Fast SSL Wildcard, Super-True SSL Wildcard, Super-True SSL Pro Wildcard, and Guomi SM2 Algorithm Super True SSL V3 wild card type, users can choose a suitable SSL certificate according to their needs.

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Origin blog.csdn.net/WoTrusCA/article/details/131459437