Knowledge Base

Learn how to generate a Certificate Signing Request (CSR) on macOS, complete email verification, and export your SSL/TLS certificate in PKCS12 format using OpenSSL and the Sectigo portal.

Learn how to achieve DMARC compliance for Verified Mark Certificates (VMC). This guide explains DMARC, its importance for email security, and step-by-step instructions for configuring SPF, DKIM, and DMARC records.

Access New Sectigo Public Certificate Chain

Microsoft IIS and other Windows-based TLS servers will provide a certificate chain

How to install the SSL Certificate into a Palo Alto Firewall

WHOIS Email DCV Deprecation

This article explains the steps involved in exporting a PFX (Personal Information Exchange) file format with 3DES (Triple Data Encryption Standard) encryption.

This article explains the steps involved in exporting a PFX (Personal Information Exchange) file format with AES (Advanced Encryption Standard) encryption.

Understanding Certificate Transparency (CT) Logs and Precertificates

Enterprise Public Key Infrastructure (E-PKI) Manager User guide