One certificate for multiple completely different domains. Multi-Domain SSL (SAN/UCC) secures up to 250 different FQDNs under a single certificate. Cover obhost.net, otherbrand.com, mail.company.org. managed from one CSR, one verification, one renewal. Microsoft Exchange ready.
Multi-Domain SSL certificates. also known as Subject Alternative Name (SAN) or Unified Communication Certificates (UCC). allow you to secure multiple completely different domains, subdomains, and hostnames under a single certificate. Where Wildcard SSL covers unlimited subdomains of one domain, Multi-Domain SSL covers entirely different FQDNs.
For example, a single Multi-Domain SSL can cover obhost.net, otherbrand.com, mail.company.org, shop.anotherdomain.co, and many more. all managed from one certificate with one CSR, one verification process, and one renewal date. UCC/SAN certificates support up to 250 SAN entries.
Multi-Domain SSL certificates are available in DV (Domain Validation) and OV (Organization Validation) versions, and are fully compatible with Microsoft Exchange Server, Office 365, and all major web server platforms.
Filter by brand. All plans support multiple domains and subdomains under one certificate.
A single Multi-Domain SSL certificate can include any combination of FQDNs, IPs, and wildcard entries. fully customizable.
Run multiple brands or product domains? Secure all of them with one certificate, one renewal, one management dashboard.
Officially recommended for Exchange. Covers autodiscover, mail, webmail, and root domain. all in one UCC certificate.
Manage SSL for many client-owned domains efficiently. perfect for hosting companies and white-label SaaS platforms.
Active Directory Federation, multiple public-facing services, internal portals. Multi-Domain SSL handles complex enterprise needs.
One certificate, simplified management, full Exchange compatibility. built for businesses with complex domain portfolios.
Secure obhost.net, otherbrand.net, mail.company.org. and up to 250 completely different FQDNs. all under one SAN SSL certificate.
One CSR, one verification, one renewal, one dashboard. instead of managing dozens of separate certificates across all your domains and brands.
Multi-Domain UCC certificates are the recommended type for Microsoft Exchange Server and Office 365. covering all required hostnames in one cert.
Everything you get with every OBHost Multi-Domain SSL certificate.
Set up your Managed Multi-Domain SSL with one simple step.
01After purchasing Managed Multi-Domain SSL, submit a request with all the domain names you wish to secure. Follow the link in your email or contact our support team to get started.
Our team handles verification and installation across all your domains. That's the "managed" in Managed SSL.
A step-by-step guide to installing your SAN/UCC certificate.
01Generate a CSR: List all domains to be covered as Subject Alternative Names in your CSR.
02Verify each domain: The CA verifies your control over each domain (DV) or your organization identity (OV).
03Download your certificate: Get the Multi-Domain certificate and intermediate chain from your SSL dashboard.
04Install on your server(s): Install the certificate on all relevant servers. same file covers all listed domains.
05Verify all domains: Check each domain in a browser to confirm the padlock and certificate SAN list.
Need subdomain coverage of one domain or the highest trust level?
If you have one main domain with many subdomains, Wildcard SSL is the most cost-effective option. it covers unlimited subdomains under one domain with one certificate.
View Wildcard SSLFor maximum trust. EV SSL displays your verified company name in the browser address bar. Recommended for ecommerce, financial sites, and enterprise platforms.
View EV SSLHTTPS (HyperText Transfer Protocol Secure) ensures all data exchanged between a visitor's browser and your server is encrypted in transit. preventing interception, tampering, or eavesdropping. The "S" confirms an SSL/TLS certificate is active.
A Multi-Domain SSL certificate works exactly like a standard SSL but includes a Subject Alternative Names (SAN) extension in the certificate's X.509 structure. This extension lists every domain and hostname the certificate is valid for. Browsers check this list to confirm a domain is covered. and show the padlock accordingly.
OBHost offers Multi-Domain SSL from Sectigo, Thawte, DigiCert, and GeoTrust. in both DV and OV validation levels, covering up to 250 SANs per certificate.
Managing multiple domains without SSL means every unsecured domain shows visitors a "Not Secure" warning. damaging trust across every brand you operate. A Multi-Domain SSL certificate resolves this for your entire portfolio in one purchase.
One certificate, one renewal, total coverage. Whether you manage two domains or two hundred, Multi-Domain SSL simplifies security across your entire infrastructure while ensuring every visitor on every domain sees the trusted padlock.
Everything about SAN SSL, UCC certificates, Wildcard SANs, flex domains, and Exchange Server compatibility.
Sectigo · Thawte · DigiCert · GeoTrust · OBHost · DV & OV · Up to 250 SANs