What Are The Requirements for SSL.com SSL/TLS Certificate Domain Validation?
Domain Validation methods and options for all SSL/TLS certificates.
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Category: SSL/TLS
Removal of the Client Authentication EKU from TLS Server Certificates – What You Need to Know
Overview Beginning September 15, 2025, SSL.com’s TLS server certificates will be issued without including the Client Authentication extended key usage (EKU) extension. This change is
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Install SSL Certificates on Zeus Webserver
This article will provide detailed instructions on installing certificates on the Zeus Webserver. Upon receiving your certificates, you will have three files. Begin by opening
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An Introduction to Certification Authority Authorization (CAA)
SSL.com’s in-depth look at Certification Authority Authorization (CAA) and how it can help protect your website, your business – and your online reputation.
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Created by the Internet Engineering Task Force (IETF) and described in RFC 6844, CAA lets the owner of a domain name authorize designated and specific Certification Authorities (CAs) to issue SSL certificates for their domain name.
Understanding CAA Check Failures and How to Resolve Them
Learn how to fix CAA check failures and secure your domain. This guide covers common issues, DNSSEC errors, and actionable solutions for TLS certificates.
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Why Law Firms Should Invest More in Cybersecurity
Explore why law firms must prioritize cybersecurity investments today. Learn about unique vulnerabilities, rising cyber threats, essential security measures, and the business case for protecting sensitive legal data.
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What is an SSL/TLS Certificate?
Learn about SSL certificates: what they are, how they work, and why they’re crucial for website security. Explore types, benefits, and implementation.
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What is HTTP Strict Transport Security (HSTS)?
Learn about HTTP Strict Transport Security (HSTS), a crucial web security mechanism that enforces HTTPS connections. Discover its benefits, implementation steps, and best practices for protecting your website against common attacks.
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Unified Communications Certificate (UCC): A Comprehensive Guide
Learn about Unified Communications Certificates (UCCs), how they secure multiple domains, their benefits, and best practices for implementation and management.
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What is a Root Store?
Root stores: Key components of internet security. Learn about these trusted certificate collections and their role in cybersecurity.
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What is a Wildcard SSL Certificate?
Wildcard SSL Certificates secure multiple subdomains under one domain. This article explains their function and best uses.
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What is the “Unique Value” Used in Domain Validation (DV)?
Domain Validation (DV) is a crucial step in obtaining an SSL/TLS certificate for your website. A key component of this process is the “unique value” used to verify domain ownership.
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SSL Certificate Expiration Guide
Why do SSL Certificates Expire? Think of an SSL certificate as a passport for your website, verifying its identity and ensuring secure connections. Just as
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Automatically Generate Unique IoT Device Certificates Using Prevalidated Domains
Introduction: SSL.com provides a domain prevalidation capability that speeds up the process to issue certificates. The process is extended to all subdomains to the left
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What is a Certificate Authority (CA)?
Certificate authorities (CAs) are critical in securing online communications and identities. But what exactly does a CA do? And how do they establish trust online?
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What Is Certificate Pinning?
What is Certificate Pinning? Certificate pinning is a security mechanism used in the context of authenticating client-server connections, particularly in the context of secure communication
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SSL/TLS Handshake: Ensuring Secure Online Interactions
Whenever we visit a website, make an online purchase, or check our email, data is transmitted back and forth between our devices and remote servers.
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The Essential Guide to SAN Certificates
SSL/TLS certificates securely enable HTTPS and other encrypted connections for websites and services. Typically, you need a separate certificate for each hostname or domain you
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Preparing Your Organization for the Quantum Revolution: A Guide to Implementing Post-Quantum Cryptography
Quantum computers will be potent and pose a massive threat to encrypting data as we know it. Here at SSL.com, we are on top of
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SSL/TLS Best Practices for 2023
An overview of current best practices to keep in mind when setting up SSL/TLS for your website, focusing on both security and performance.
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A Guide to PKI Protection Using Hardware Security Modules (HSM)
PKI (Public Key Infrastructure) relies on public and private keys to encrypt data. Hardware Security Modules (HSMs) safeguard these keys in tamper-proof boxes. HSMs store
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SSL.com Legacy Cross-Signed Root Certificate Expiring on September 11, 2023
What is a cross-signed root certificate? A cross-signed root certificate is a digital certificate issued by one Certificate Authority (CA) that is used to establish
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Install SSL.com CA Root Certificates
CA Root Certificates, CA-bundle, Intermediate Files
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SSL/TLS Health Check Monitoring (HCM) Guide and Pricing
The SSL.com SSL/TLS Health Check Monitoring (HCM) service provides a real-time snapshot of your website’s SSL/TLS certificate installation health. It performs a deep scan of
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