Multi-Domain SSL Certificate
Secure multiple different domains — and subdomains — on a single SAN/UCC certificate. Perfect for agencies, multi-brand businesses and Microsoft Exchange.
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Why Choose a Multi-Domain SSL Certificate?
Built for agencies, multi-brand companies and Microsoft Exchange/Office Communications environments that run many domains.
Many Domains, One Certificate
Secure example.com, example.net, mybrand.io and more on a single SAN certificate — one renewal, one expiry to track.
Domains + Subdomains
Add full domains and specific subdomains as SAN entries for flexible coverage across your entire web estate.
Instant Activation
Domain-validated and issued in minutes so you can secure all your sites in one pass.
256-bit Encryption
2048-bit RSA keys and SHA-256 signatures protect every listed domain with the same strong encryption.
Free Unlimited Reissues
Add or change SAN entries and reissue the certificate for free whenever your domain list evolves.
24/7 Expert Support
Our SSL specialists help you build the CSR with the right SAN entries and install across servers.
Multi-Domain SSL vs Wildcard SSL
Choose multi-domain for several different domains; choose wildcard for unlimited subdomains of one domain.
Multi-Domain SSL
Secures several distinct domains (example.com, example.net, mybrand.io) on one SAN certificate. Best for agencies and multi-brand businesses.
Get Multi-Domain SSLWildcard SSL
Secures one domain + unlimited first-level subdomains (*.example.com). Best when you keep adding subdomains under a single brand.
Compare Wildcard SSLWhat's Included
Issued in Minutes
Validate control of each domain and receive your SAN certificate within 5–15 minutes.
One Cert Across Servers
Install the same multi-domain certificate on Apache, Nginx, IIS, Exchange, cPanel, Plesk and more.
Need a Detailed Guide?
Read our in-depth multi-domain SSL guide covering SAN vs UCC and how many domains you need.
Multi-Domain SSL FAQ
Common questions about SAN / UCC multi-domain certificates
What is a multi-domain (SAN) SSL certificate?
A multi-domain SSL certificate — also called a SAN (Subject Alternative Name) or UCC certificate — secures several completely different domain names on a single certificate. Instead of buying and managing separate certificates for example.com, example.net and mybrand.io, you protect them all with one.
How many domains can one multi-domain certificate secure?
Our DV multi-domain certificate starts with multiple domains included and lets you add many more SAN entries as needed. It's ideal for businesses that run several brands, regional domains, or client sites from one place.
Multi-domain SSL vs wildcard SSL — what's the difference?
A multi-domain certificate secures several distinct domains (example.com, example.net, another.org). A wildcard secures one domain plus unlimited subdomains (*.example.com). If you need many different domains, choose multi-domain; if you need many subdomains of one domain, choose wildcard.
Can I mix domains and subdomains on a SAN certificate?
Yes. A multi-domain (SAN) certificate can list both full domains and specific subdomains as separate SAN entries, giving you flexible coverage across your entire web estate on one certificate.
How quickly is a DV multi-domain certificate issued?
Domain Validated multi-domain certificates are issued within minutes once you complete domain control validation for each included domain — typically 5 to 15 minutes — with full 256-bit encryption.
Is a multi-domain certificate cheaper than separate certificates?
For three or more domains it is almost always cheaper and far simpler to manage one SAN certificate than multiple single-domain certificates, because you handle one renewal, one reissue, and one expiry date.
Secure All Your Domains Today
One SAN certificate, many domains, instant activation. Simplify your certificate management in minutes.