Wildcard SSL vs Multi-Domain SSL: Which One Do You Need?

Making sure your website is protected with the appropriate SSL certificate is now crucial in an era where cybersecurity threats are increasing. An SSL certificate is not only encrypts the data transmission but also increases user trust and your websites search engine rankings.

It can be difficult to choose the best kind of SSL certificate, though, particularly when contrasting Multi-Domain SSL and Wildcard SSL. Though they have different functions, both provide coverage across multiple domains. We will look at each certificates functions, differences, and suitability for your needs in this post.

For More detailed so read this article: Wildcard SSL vs Multi-Domain (SAN) SSL Certificate – Differences Explained

What Is a Wildcard SSL Certificate?

Wildcard SSL certificate protects the main domain and all unlimited subdomains. For example, if your domain is yourdomain.com, a wildcard certificate can protect:

• yourdomain.com
• blog.yourdomain.com
• shop.yourdomain.com
• mail.yourdomain.com

It is a possible the use of an asterisk (*) as a placeholder for subdomains. So, when issued for *.yourdomain.com, the certificate applies to any subdomain under that main domain.

Also Read:- Wildcard SSL Certificate Management and Renewal Strategies

Advantages of Wildcard SSL:

• Cost-effective
• Simplified management
• Scalable

Disadvantages of Wildcard SSL

• Only covers one level of subdomains.
• To secure multiple domains

What Is a Multi-Domain SSL Certificate?

Multi-Domain SSL certificate are also called SAN (Subject Alternative Name) certificate. It allows to protect multiple domain names and subdomains with a single certificate. For example, a multi-domain certificate can secure:

• yourdomain.com
• yourdomain.net
• anotherdomain.org
• blog.yourdomain.com

It is perfect for businesses that monitor many different websites under various domain names, like companies with multiple product lines or brands.

Advantages of Multi-Domain SSL:

• Secure multiple domains under a single certificate.
• simplifies SSL management for companies with multiple brands or websites.
• It include subdomains, if explicitly listed.

Disadvantages of Multi-Domain SSL:

• More expensive than standard or wildcard SSL certificates.
• When a domain is purchased, it must be listed.
• Certificate expires or is revoked, all domains could be affected

Wildcard vs Multi-Domain SSL: Key Differences

They are both used to secure multiple domains or subdomains, Wildcard SSL and Multi-Domain SSL (SAN SSL) certificates have different functions with unique features.

1. Coverage

• Wildcard SSL: To secure a single domain and unlimited subdomains at one level.

Example: www.example.com

blog.example.com

shop.example.com

• It does NOT secure example.net or www.blog.example.com.

• Multi-Domain SSL (SAN): To secure the multiple domains and subdomains, even across different TLDs.

Example: example.com

example.net

shop.example.org

blog.anotherdomain.com

2. Flexibility

• Wildcard: Ideal for businesses that manage a single domain that has multiple subdomains.
• Multi-Domain: Perfect for businesses that manage multiple unrelated websites or services.

3. Certificate Management

• Wildcard: Having a single certificate for all subdomains makes management easier.
• Multi-Domain: Depending on the CA, you can combine security for up to 100 domains into a single certificate, making deployment and renewal across domains easier.

4. Cost

• Wildcard: Cost-effective when you have many subdomains under one domain.
• Multi-Domain: Although generally more costly, it is less expensive than purchasing separate SSLs for every domain.

5. Limitations

• Wildcard: It does not support multiple domains or sub-subdomains (like www.shop.example.com).
• Multi-Domain: They does not automatically cover new subdomains—you must specify each one.

Also Read:- How to Buy Wildcard SSL Certificates?

Which SSL Certificate Do You Need?

The best certificate for you will depend on your current domain structure and your long-term expansion objectives. Think about the following situations to aid in your decision-making:

Use Wildcard SSL If:

• To manage a single primary domain with multiple subdomains.
• To secure subdomains such as shop.domain.com, blog.domain.com, and mail.domain.com.
• You are looking for a cost-effective solution that allows easy scaling with additional subdomains.

Use Multi-Domain SSL If:

• To manage multiple websites or brands with different domain names.
• Need to secure website.com, product.net, and brand.org under one certificate.
• You are looking for centralized SSL management for all your properties.

Also Read:- How to Verify the Wildcard SSL Certificate for Single Domain

Conclusion: Making the Right Choice

Strong encryption and trust signals are provided by both Wildcard and Multi-Domain SSL certificates, but they fulfill different organizational purposes. Here is a brief synopsis:

If you are working on a single domain that has multiple subdomains, then go with Wildcard SSL.

If you need to secure multiple different domains, then go with Multi-Domain SSL.

Better scalability, simpler administration, and enhanced security posture for your digital assets are guaranteed when you choose the appropriate SSL certificate. It is a minor but important choice that helps establish credibility and trust online.