5 Stars4 Stars3 Stars2 Stars1 Star (13 votes, average: 4.92 out of 5) How to Create CSR for Wildcard SSL with OpenSSL Commands?Last Modified: August 11, 2026 Wildcard SSL certificates secure one domain but have the added benefit of securing unlimited sub-domains. To generate every type of SSL certificate, users must generate a Certificate Signing Request (CSR).…