Glossary of PKI Terms

Affiliate: A corporation, partnership, joint venture or other entity controlling, controlled by, or under common control with another entity, or an agency, department, political subdivision, or any entity operating under the direct control of a Government Entity. American Institute of Certified Public Accountants (AICPA): AICPA » Continue Reading.

FAQ: 27-Month SSL Certificate Lifetime Limit

Since March 1, 2018, the maximum duration of publicly-trusted SSL/TLS certificates issued by all Certificate Authorities, including, has been set to 825 days (about 27 months). However, continues to offer our customers certificate bundles with up to five years of coverage. For orders exceeding 27 months, » Continue Reading.

FAQ: How Do I Install a Certificate?

This page includes lists of all how-to articles covering certificate installation on various platforms.  If you have any questions or need additional information about generating your CSR, please contact us at, call 1-877-SSL-SECURE, or just click the chat link at the bottom right of this page. SSL/TLS » Continue Reading.

Questions about Certificate Transparency

What is Certificate Transparency? Certificate Transparency (CT) is a project started by Google, aiming to eliminate various structural flaws in the SSL certificate system. CT allows anyone to detect SSL certificates that have been mistakenly issued by a Certificate Authority (CA), or maliciously acquired from » Continue Reading.

Does the Basic SSL Certificate work with subdomains?

Yes,’s Basic SSL certificate does work with subdomains.  You may select one Fully Qualified Domain Name (FQDN) to protect with your Basic SSL certificate.  This FQDN may be either a root domain (for example, or a subdomain (i.e., Whichever you choose, we’ll » Continue Reading.