A multi-domain certificate - also called a SAN certificate (Subject Alternative Name) - secures several different domains on a single certificate. It's the efficient way to cover a set of distinct sites without buying one certificate each.
How a SAN certificate works
The certificate has one primary domain (the Common Name) plus a list of additional SAN domains. For example a single certificate can secure yourbrand.in, yourbrand.com and shop.yourbrand.in together. You manage and renew one certificate instead of several.
How pricing works
The base price covers the primary domain plus a number of included domains that varies by product. Every domain beyond that is charged a clear per-additional-domain price per year. Each product also has a maximum number of domains it can carry. On the product page, a domain selector updates the price live as you add domains, so there are no surprises.
SAN vs wildcard vs single
- Single-domain - one site. Simplest and cheapest for one name.
- Wildcard - one domain and all its first-level subdomains.
- Multi-domain (SAN) - several different domains on one certificate. You can even combine wildcards as SAN entries on some products.
Buying and setting up
Pick a multi-domain product, choose how many domains you need (the buy box prices it instantly), then enter each domain at setup. Each domain completes its own domain validation.