How to put the domain name correctly in a CSR?

The Common Name (CN) is the most critical part of your CSR .

  • Standard SSL: Enter the Fully Qualified Domain Name (FQDN), e.g., example.com or www.example.com.
  • Wildcard SSL: Use an asterisk before the domain, e.g., *.example.com. This will secure the main domain and all first-level subdomains.
  • Avoid: Do not include http:// or https:// or any folder paths (like example.com/blog) in the Common Name field .
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