The Trustico® DV + Multi Domain SSL Certificate secures several separate domain names on one SSL Certificate, using Subject Alternative Names (SANs). It confirms control of each name through Domain Validation (DV) and protects them all with strong encryption.
It is a strong fit for a business that runs more than one website, or a set of brand or regional domains, since the names are held together under a single SSL Certificate. Coverage runs from a few names to hundreds, with more available as additional SANs.
This SSL Certificate performs server authentication and can secure a service on any port. Common uses include websites, webmail, e-mail servers running Simple Mail Transfer Protocol (SMTP) and Internet Message Access Protocol (IMAP), Virtual Private Network (VPN) servers, remote desktop, and network appliances or routers.
More broadly, it works with any other server, software, or device that accepts an SSL Certificate to secure a connection from one point to another. For information about Client Authentication 🔗 please read about global regulated changes prior to purchase.
The sections below explain what the Trustico® DV + Multi Domain SSL Certificate covers, how it is validated, and how to put it in place.
Multiple Names on One SSL Certificate
A multi-domain SSL Certificate secures several separate names on one SSL Certificate through Subject Alternative Names (SANs). The names can be entirely different domains, such as example.com, example.net, and another-brand.com, as well as subdomains, all held together under a single SSL Certificate.
Coverage runs from a few names to hundreds, and further names can be added as additional SANs when you need them. This keeps a group of sites under one SSL Certificate with a single expiry date. Explore Multi Domain Coverage 🔗
Domain Control Validation
Domain Validation (DV) confirms control of each name on the SSL Certificate, with no organization checks, so the SSL Certificate is issued quickly once every name is confirmed. Each name is validated on its own, and the names can be validated in parallel.
For each name you can choose the method that suits you : replying to an e-mail at an approved address, adding a Domain Name System (DNS) record, or placing a file at a set location on that name. Understand Domain Validation 🔗
Adding and Changing Names
You can add more names during the term by purchasing additional Subject Alternative Names (SANs). The price is pro-rata, based on the validity remaining on your license, so a name added later in the term costs less than one added near the start.
Once you order an additional name, Trustico® reviews the order and decides the best way to add it. In most cases the team adds the name for you, and in some cases you receive an activation code to complete the addition yourself in the Trustico® Tracking System 🔗
Each newly added name is validated in the same way as the original names before it is included, while the other names stay in place. To remove a name from the SSL Certificate, contact the Trustico® team and they will make the change for you.
USD $500,000 Warranty
Every Trustico® DV + Multi Domain SSL Certificate carries a USD $500,000 Relying Party Warranty that covers the secured names. It provides financial cover in the unlikely event that the Certificate Authority (CA) issues the SSL Certificate in error.
You can reissue the SSL Certificate as often as you need at no charge, for example after changing your Private Key or moving to a new server. Review Warranty Details 🔗
Encryption and Protocols
The SSL Certificate uses a 2048-bit RSA key with 256-bit symmetric encryption, over the Transport Layer Security (TLS) 1.2 and 1.3 protocols, with SHA-256 hashing. Every secured name connects over HTTPS with the padlock shown.
It also supports the encryption requirements of the Payment Card Industry Data Security Standard (PCI DSS). Compare Encryption Algorithms 🔗
Trustico® Site Seal
Every order includes a complimentary Trustico® site seal that you can display on each secured site to reassure visitors. It works well on payment, sign-up, and contact pages, where confidence matters most.
The seal is added with a short piece of HTML. Explore the Trustico® Site Seal 🔗
Browser Compatibility
The SSL Certificate is trusted by around 99.9% of web browsers, including Chrome, Firefox, Safari, and Edge. Mobile devices on iOS and Android trust it without any additional configuration.
This wide recognition means visitors reach your secure sites without warnings. Understand Browser Compatibility 🔗
One SSL Certificate for Several Sites
A multi-domain SSL Certificate replaces the separate SSL Certificates you would otherwise order for each site, so one SSL Certificate and a single expiry date cover the whole group. This leaves far fewer dates and orders to track.
The saving grows with the number of names one SSL Certificate covers, and adding a name later is simpler than starting a new SSL Certificate for it. Management stays in one place as the group changes.
Unlimited Server Licenses
The multi-domain SSL Certificate can be installed on as many servers as you need at no extra cost. This suits a set of sites that run on different infrastructure, such as separate hosts, cloud platforms, or content delivery endpoints.
The same SSL Certificate and Private Key are deployed to each server that serves a secured name. Where a server needs its own key, you can reissue as often as needed at no charge.
Installation
Installation begins with a Certificate Signing Request (CSR) for the primary name, with the additional names given during ordering. After validation, you deploy the issued SSL Certificate with the supplied intermediate chain files. Platform guides cover Apache, Nginx, Microsoft Internet Information Services (IIS), and other common web servers and control panels.
If you would rather have it handled for you, the Premium Installation service can carry out the work. Access Installation Guides 🔗
Support and Resources
The Trustico® website provides a large set of free guides, frequently asked questions, and online tools covering ordering, validation, and installation, so most questions can be answered without contact.
For help with placing an order or completing domain validation, the Trustico® team is available through the published contact methods. Browse the Trustico® Support Resources 🔗
Refund Policy and Price Promise
An order is a license that unlocks once the Certificate Authority (CA) completes validation. If validation cannot be completed beforehand, the value of the order is held as Trustico® Prepaid Credit for use on another SSL Certificate, domain, or product.
Once the SSL Certificate has been validated and issued, the license is active and refunds no longer apply. Requests outside this pre-validation protection are considered at the discretion of Trustico® through the refund request form. Review the No Risk Refund Policy 🔗
A price match against advertised prices from other providers applies both before and after you order, so your pricing stays competitive. Learn About The Trustico® Price Promise 🔗
Your SSL Certificate License
Your purchase is an SSL Certificate license for the term you choose, such as one or two years. A multiple year license fixes the current pricing for the whole term.
Because an individual SSL Certificate has a maximum validity set by industry rules, currently 200 days and subject to change, a longer license is kept current by reissuing the SSL Certificate during the term rather than by a single SSL Certificate covering the full period.
Reissues are free and unlimited across the license, and each gives the largest validity left on the term, so a reissue late in the license runs only to its end. The secured names carry across each reissue. Manage your reissues in the Trustico® Tracking System 🔗
A reissue is not the same as buying a new license. A reissue replaces the SSL Certificate within the license you hold, while a new license is a separate paid order, best placed about two weeks before the term ends to allow time to validate and install.
A notice is sent before the license period ends, though tracking the SSL Certificates installed on your own servers stays with you. You can read expiry dates from the server, use a monitoring service, or download calendar files for the license and SSL Certificate dates from the tracking system.
Suitable Uses
The Trustico® DV + Multi Domain SSL Certificate suits a business that runs several separate websites, a set of regional or brand domains, or a mix of public sites and internal names, all secured on one SSL Certificate. It also fits development and staging names kept alongside production.
Agencies and resellers that secure many client domains often use one multi-domain SSL Certificate to keep management and billing simple. Learn About the Partner Service 🔗
Other Options
Where you need to secure only one name, the single site version covers a single domain with the same Domain Validation. Compare DV Single Site 🔗
The same multi-domain SSL Certificate is available under the Sectigo® brand at the same validation level. Compare Sectigo® DV Multi Domain 🔗
For a multi-domain SSL Certificate that also carries a verified organization identity, an Organization Validation option is offered under the Sectigo® brand. Compare OV Multi Domain 🔗
