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Certificate FAQ
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Access New Sectigo Public Certificate Chain
Updated on October 20, 2025
68 people found this helpful
Access New Sectigo Public Certificate Chain
Sectigo Root Certificates
Updated on April 17, 2025
816 people found this helpful
This article provides helpful information concerning Sectigo's 4 modern root certificates
Sectigo Intermediate Certificates - RSA
Updated on February 16, 2025
519367 people found this helpful
This article provides details about Intermediate Certificates, such as; who issues them, who sends them, how to install, and links to download them.
WHOIS Email DCV Deprecation
Updated on January 9, 2025
99 people found this helpful
WHOIS Email DCV Deprecation
Troubleshooting Certificate Installation Error - Invalid Public Key Security Object File
Updated on September 30, 2024
44 people found this helpful
Troubleshooting Certificate Installation Error - Invalid Public Key Security Object File
64-Character Limitation on Common Name (CN) Field in X.509 Certificates
Updated on September 30, 2024
81 people found this helpful
64-Character Limitation on Common Name (CN) Field in X.509 Certificates
Understanding Certificate Transparency (CT) Logs and Precertificates
Updated on September 18, 2024
38 people found this helpful
Understanding Certificate Transparency (CT) Logs and Precertificates
Enterprise Public Key Infrastructure (E-PKI) Manager User guide
Updated on April 1, 2024
66 people found this helpful
Enterprise Public Key Infrastructure (E-PKI) Manager User guide
Apple changes S/MIME maximum validity lifecycle to 1185 days (3 years)
Updated on March 30, 2022
60 people found this helpful
This article references key information from Apple’s Policy Requirements page
OCSP and CRL access information
Updated on November 10, 2021
105 people found this helpful
CRLs and OCSP use HTTP to retrieve information from the following servers.
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