sslTrus Multi-Domain SSL Certificates
A multi-domain SSL certificate (SAN/UCC) protects multiple domains, saving costs compared to individual certificates. It simplifies verification, management, and renewal, and is recommended for Exchange Servers.
sslTrus Multi-Domain SSL Certificates
DV Multi-Domain Certificates
One certificate to protect multiple domains (including subdomains), requiring only domain validation for quick issuance.
From $32.40/year
- Protects Multiple Domains (and Subdomains), Starting from 3
- Within 5 Minutes
- $500,000 Certificate Warranty
- RSA 2048/3072/4096 & ECC
- 7*24 Expert Support
- 30-Day Refund Policy
OV Multi-Domain Certificates
One certificate protects multiple domain names, requiring both domain validation and organization validation.
From $148.50/year
- Protects Multiple Domains (and Subdomains), Starting from 3
- 1-3 business days
- $1.000,000 Certificate Warranty
- RSA 2048/3072/4096 & ECC
- 7*24 Expert Support
- 30-Day Refund Policy
EV Multi-Domain Certificates
One certificate protects multiple domain names, requiring organizational validation.
From $193.50/year
- Protects Multiple Domains (and Subdomains), Starting from 3
- 1-3 business days
- $1.750,000 Certificate Warranty
- RSA 2048/3072/4096 & ECC
- 7*24 Expert Support
- 30-Day Refund Policy
How Does an SSL Certificate Work?
It establishes an encrypted connection by ensuring data security and integrity through authentication, key exchange, and encrypted communication. This process is invisible and instant.
Authentication
When a client (such as a browser) attempts to establish a secure connection with a server, it first sends a connection request to the server.
Upon receiving the client’s request, the server sends its SSL certificate to the client. This certificate contains the server’s public key, information about the Certificate Authority (CA), the certificate’s validity period, and other critical information.
After receiving the server’s certificate, the client performs a series of verification operations to ensure the authenticity and validity of the certificate. These verification operations include checking whether the certificate is issued by a trusted CA, whether the certificate has expired, and whether the domain name on the certificate matches the domain name being accessed.
Encryption
After successfully verifying the server’s certificate, the client generates a random session key (also known as a symmetric key).
The client uses the public key in the server’s certificate to encrypt the session key.
The encrypted session key is then sent by the client to the server.
Decryption
Upon receiving the encrypted session key from the client, the server uses its private key to decrypt it, thereby obtaining the original session key.
With the session key in hand, both the client and the server can use this key for symmetric encrypted communication. This means that all data transmitted between the client and the server will be encrypted, and only the parties possessing the same session key can decrypt this data.
Advantages of sslTrus Multi-Domain Certificates
- Low-cost & scalable
- Easy subdomain management
- Robust security
- Preferred email service
- Ensure website compliance
- Multi-platform compatibility
Enhance the security of the enterprise website
- Robust data encryption
- Boost website trustworthiness
- Optimize SEO rankings
- Eliminate browser warnings
- Protect user privacy
- Display a secure lock icon
A maintenance platform with clear visibility
CLM support full-link automated management of the SSL certificate lifecycle, enhancing management efficiency, reducing security risks, and fulfilling all enterprise needs for SSL certificates in various scenarios.
Related Products
EV SSL Certificate
Wildcard SSL Certificate
