Skip to main content

SSL Certificate Renewal Related Issues

This section explains in detail the process issues related to SSL certificate renewal, covering the renewal time window, rules for adding multiple domains, and validity period connection differences among different brands (such as DigiCert, Sectigo, Globalsign, etc.), to avoid business interruption risks.

📄️ Whether adding new domains extends the validity period when renewing multi-domain certificates

This article analyzes the impact of adding new domains on the validity period during multi-domain SSL certificate renewal, compares the rule differences among GeoTrust/DigiCert (carrying over remaining validity), Sectigo (uniform 1-month extension), Globalsign (fixed 13-month validity), and CFCA (requiring a new order), and explains how to choose the optimal renewal strategy through scenario examples.