You’re paying to secure multiple websites, but are you overpaying? Buying separate SSL certificates for each domain wastes money and time. A multi-domain SSL (SAN/UCC) covers up to 250 domains under one certificate, saving you hundreds of dollars a year.
But not all multi-domain certs are equal. Some providers charge per extra domain, while others bundle them. If you manage an Exchange server or host client sites, a Unified Communications Certificate (UCC) is your best bet. Let’s cut through the confusion and find the cheapest, most reliable option for your setup.
What Is a Multi-Domain SSL and How Does It Work?
A multi-domain SSL, also called a SAN or UCC certificate, lets you secure multiple distinct domain names on a single certificate. For example, you can protect ‘siteA.com’, ‘siteB.net’, and ‘siteC.org’ all at once. The magic is in the Subject Alternative Names (SANs) field, which lists each domain.
Most providers offer a base of 3 SANs for around $50/year from Namecheap, but prices jump to $249–$362/year from DigiCert for higher validation or more SANs. Adding extra domains usually costs $99–$199 each. Unlike a wildcard SSL (which only covers subdomains of one domain), a multi-domain cert covers completely different domain names. It’s perfect for businesses running multiple brands or an Exchange server.
| Product | Average Price ($) | Highlight |
| Namecheap Multi-Domain SSL | 49.99 | Cheapest multi domain ssl option for basic needs. |
| SSL.com Multi-Domain SSL | 70.00 | Good value for securing up to 5 domains. |
| GoDaddy Multi-Domain SSL | 99.99 | Easy to manage through their platform. |
| Comodo (Sectigo) Multi-Domain SSL | 129.00 | Includes a $10,000 warranty. |
| DigiCert Multi-Domain SSL | 249.00 | High assurance, ideal for e-commerce. |
| GlobalSign Multi-Domain SSL | 279.00 | Trusted by major brands, strong security. |
| The SSL Store Multi-Domain SSL | 299.00 | Offers competitive pricing and good support. |
| Entrust Multi-Domain SSL | 320.00 | EV option provides maximum trust. |
| GeoTrust Multi-Domain SSL | 340.00 | Well-known brand for reliable encryption. |
| RapidSSL Multi-Domain SSL | 362.00 | Fast validation for multiple websites. |
WHAT REALLY WORKS
A multi-domain SSL certificate, also known as a SAN certificate, lets you secure different websites with one digital key. This is vital for protecting customer data across all your online presences. It simplifies management by reducing the number of individual certificates you need to track.
These certificates use Subject Alternative Names (SANs) to list all the domains they protect. Most start with three domains and can be expanded to cover many more. This flexibility makes them cost-effective for businesses with several websites or subdomains.
Buy a SAN SSL Certificate for Multiple Domains
When you buy SAN SSL, consider the validation level. Domain Validated (DV) is fast and cheap, good for blogs. Organization Validated (OV) and Extended Validation (EV) take longer but show more business details, building greater customer trust for e-commerce sites. Always check how many domains are included and the cost to add more.
Read also: Stop Wasting Money: One SSL Covers All Subdomains
1. Namecheap Multi-Domain SSL
This is a very affordable way to secure multiple websites. It offers basic encryption and identity verification. You can secure up to 25 domains with this certificate.
Average Price: $49.99
Practical Tip: Use this if you have a few small websites and need a budget-friendly solution.
2. SSL.com Multi-Domain SSL
SSL.com provides a solid option for securing several domains at a good price. It typically includes up to 5 SANs. This certificate is great for small to medium businesses.
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Average Price: $70.00
Practical Tip: A good step up from the cheapest options, offering more included domains.
3. GoDaddy Multi-Domain SSL
GoDaddy’s offering is user-friendly, especially if you already use their services. It secures multiple domains easily. Management is straightforward through their control panel.
Average Price: $99.99
Practical Tip: Ideal for existing GoDaddy customers who want a simple setup.
4. Comodo (Sectigo) Multi-Domain SSL
This certificate, now often branded as Sectigo, offers strong security. It comes with a warranty, providing an extra layer of protection. It secures up to 250 SANs.
Average Price: $129.00
Practical Tip: Consider this for business sites needing a warranty and high domain capacity.
5. DigiCert Multi-Domain SSL
DigiCert is known for high-level security and trust. This certificate is excellent for e-commerce and large organizations. It offers robust validation and support.
Average Price: $249.00
Practical Tip: Invest in this for critical business operations where trust is paramount.
6. GlobalSign Multi-Domain SSL
GlobalSign certificates are widely recognized and trusted. They offer strong encryption and are suitable for securing many different websites. This is a premium security choice.
Average Price: $279.00
Practical Tip: Use this if brand recognition and top-tier security are key priorities.
7. The SSL Store Multi-Domain SSL
The SSL Store offers competitive pricing on various certificates. Their multi-domain option provides good value. They are known for good customer service.
Average Price: $299.00
Practical Tip: A strong contender for a balance of price, features, and support.
8. Entrust Multi-Domain SSL
Entrust provides certificates with high levels of assurance. Their Extended Validation (EV) option is excellent for building maximum customer confidence. It clearly displays your organization’s verified identity.
Average Price: $320.00
Practical Tip: Choose EV for online stores or financial services where trust is essential.
9. GeoTrust Multi-Domain SSL
GeoTrust is a well-established brand in SSL security. Their multi-domain certificate offers reliable encryption. It’s a dependable choice for securing various web assets.
Average Price: $340.00
Practical Tip: A solid, reliable option from a recognized security provider.
10. RapidSSL Multi-Domain SSL
RapidSSL focuses on quick issuance and basic security. This certificate is good for securing multiple websites rapidly. It’s a Domain Validated (DV) certificate.
Average Price: $362.00
Practical Tip: Best for quick deployment across many domains when extensive validation isn’t needed.
WHICH ONE TO BUY TODAY? (VERDICT)
For the best value, Namecheap Multi-Domain SSL at around $49.99 is hard to beat for basic needs. If you need more domains or a bit more trust, SSL.com or GoDaddy offer good starting points. Always check the number of included domains and the cost to add more.
For a significant investment in trust and security, DigiCert or Entrust EV certificates are top-tier. They provide the highest level of validation, crucial for e-commerce. These offer peace of mind for your most important online assets.
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After You Buy: Setup & Checklist
What to Check First
As soon as you receive your certificate file, verify the SAN list matches your domains. A single typo can break encryption for that site.
Common Mistakes to Avoid
- Don’t mix multi-domain and wildcard certificates. They serve different purposes.
- Avoid using DV for e-commerce; OV or EV builds customer trust.
- Don’t forget to install the intermediate certificate. Many browsers will show errors without it.
Step-by-Step Installation
- Generate a CSR on your server for the primary domain.
- Submit the CSR to your provider and complete validation.
- Download the issued certificate and intermediate bundle.
- Install the certificate on your server and configure SNI if needed.
- Test with SSL checker tools to confirm all SANs are covered.
Frequently Asked Questions
Can I add domains later?
Yes, most providers allow reissuing the certificate with additional SANs. You may pay a per-domain fee.
How long does validation take?
DV takes minutes; OV and EV take 1–3 business days due to business verification.
Will this work with my email server?
If you use Microsoft Exchange, look for UCC certificates. They are specifically designed for that.
Choosing a multi-domain SSL certificate simplifies security across your online properties. It saves time and money compared to buying separate certificates for each domain.
Check your current domain list and pick a plan that covers all of them. Start the purchase process today and secure your entire digital presence.
As web security evolves, having a single certificate for multiple domains keeps your setup clean and manageable. You’ll be ready for future expansions without hassle.
