The Common Name (CN) is the most critical part of your CSR .
- Standard SSL: Enter the Fully Qualified Domain Name (FQDN), e.g.,
example.comorwww.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://orhttps://or any folder paths (likeexample.com/blog) in the Common Name field .