Generate SSL CSR

Create a new Certificate Signing Request and private key for your SSL certificate.

Save your private key in a safe place. It cannot be recovered after leaving this page.
Common Name (CN) Primary domain for this certificate (example.com or *.example.com).
Alternative Names (SAN) Additional domains covered by the certificate. One per line or comma-separated.
Country (C) 2-letter ISO 3166 country code (example: IR, US).
State (ST) State or province name.
Locality (L) City name.
Organization (O) Legal organization or company name.
Organizational Unit (OU) Department or unit name (example: IT Department).
Private Key Size 2048-bit is faster and usually enough. 4096-bit is stronger but slower.

Paste your current CSR to prefill the form. A new CSR and new key will be generated.

Guide
Send your CSR file to your CA provider to issue SSL certificate.
Keep the private key on your server. Never send it to CA.
For wildcard SSL use *.example.com as Common Name.
All processing is local on server and nothing is sent to external services.