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Hello everyone,
can anyone tell me if Is It Possible to Have One SSL Certificate for Multiple Domains?
can anyone tell me if Is It Possible to Have One SSL Certificate for Multiple Domains?
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Absolutely! The answer is an obvious "Yes! secure multiple domains, including subdomains, is possible with A single SSL certificate.
SSL/TLS certificates are categorized into various types based on their validation level and functionality. When it comes to securing multiple domains with a single certificate, two common options are available: the multi-domain/UCC/SAN certificate or the multi-domain wildcard SSL certificate, Using a single SSL certificate for multiple domains is not considered ideal for security and scalability reasons.
How Multi-Domain/SAN Certificates Work:
It is created to protect multiple fully qualified domain names (FQDNs).
Multi-domain SSL/TLS certificates, also known as Unified Communication Certificates (UCC) or Subject Alternative Name (SAN) certificates, It is created to protect multiple fully qualified domain names (FQDNs). When generating a certificate signing request (CSR), the common name listed on the CSR remains unchanged. However, you have the flexibility to add or edit the SANs (Subject Alternative Names) to include the desired domains that you want to secure. This allows you to have a single certificate that covers multiple domains, providing flexibility and convenience in securing your online assets.
Let's take an example to better understand how multiple domains can be secured with a single SSL certificate:
John is an SEO spe******t working with various clients who each have multiple domains. Her clients' domains include:
blog.example1.com
www.example3.org
How Multi-Domain Wildcard SSL Certificates Work:
Multi-Domain Wildcard SSL certificates connect the features of both wildcard and multi-domain (SAN) certificates. They allow you to secure many domains and their subdomains using a single certificate.
Let's understand how Multi-Domain Wildcard SSL certificates work with an example:
Suppose you have a business with three different domains:
shop.example2.net
Blog.example3.org
Additionally, you have subdomains associated with each domain:
admin.example1.com
shop.shop.example2.net
News.blog.example3.org
To secure all these domains and subdomains with a Multi-Domain Wildcard SSL certificate, you would include them in the certificate's Subject Alternative Name (SAN) field, along with their respective wildcard entries.
The resulting Multi-Domain Wildcard SSL certificate would cover:
www.example1.com
*.example1.com
shop.example2.net
*.example2.net
blog.example3.org
*.example3.org
This means that the certificate would secure not only the main domains but also their subdomains using a wildcard entry. The wildcard character (*) in the certificate allows for unlimited subdomain levels within the specified domain.
You can reduce costs, simplify SSL certificate maintenance, and enable secure connections for many domains and their subdomains with a single certificate by using a Multi-Domain Wildcard SSL certificate.
You have two options to secure multiple domains based on your business needs: SAN (Subject Alternative Name) certificates and multi-domain wildcard SSL certificates.
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