Knowledge Base
Sectigo Certification Authority
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Welcome to Your New Support Experience
Updated on September 3, 2025
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This document serves as the starting point for customers engaging with our support services. It outlines how to access help, what channels are available (email, chat, phone), and what to expect from our dedicated support team.
Understanding Certificate Transparency (CT) Logs and Precertificates
Updated on September 18, 2024
1763 people found this helpful
Understanding Certificate Transparency (CT) Logs and Precertificates
Banned Country List
Updated on August 21, 2024
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Currently, secure certificates of any type CANNOT be issued to individuals or business entities in the following countries, websites, or the following country-code-top-level domains (TLDs):
Reference Guide: DNSSEC and Certificate Issuance
Updated on October 13, 2026
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Explains how DNSSEC affects certificate issuance, including DCV and CAA validation. It covers common DNSSEC failures that can block issuance and provides best practices and diagnostic tools for maintaining reliable DNS configurations.
How to Set Up a Sectigo Site Seal
Updated on October 12, 2026
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Learn how to select, download, and add a Sectigo site seal to your website, including important information about static site seals and the dynamic TrustLogo option.
Sectigo Contact Information
Updated on October 12, 2026
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Ticket and phone contact options for Sectigo Sales, Support, and Validation teams.
Access New Sectigo Public Certificate Chain
Updated on October 21, 2026
3594 people found this helpful
Access New Sectigo Public Certificate Chain
How to Update SSL Certificate Profiles to a 199‑Day Validity Period in Sectigo Certificate Manager (SCM)?
Updated on March 17, 2026
372 people found this helpful
This guide provides step‑by‑step instructions for verifying and updating SSL certificate profile validity terms in Sectigo Certificate Manager (SCM) to ensure a maximum duration of 199 days, in alignment with current public SSL certificate lifetime requirements
Removal of street address and postal code fields from certificates
Updated on May 26, 2021
656 people found this helpful
Starting March 7, 2021 Sectigo will cease to include street address and postal code information in newly issued certificates on all its brands
TLS / SSL Certificate Lifespan History (2, 3, and 5-year validity)
Updated on March 5, 2021
1096 people found this helpful
Effective March 1, 2018 (and) in accordance with CA/Browser Forum Baseline Requirements: this article answers all your questions concerning legacy SSL Certificate Term Length
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