What is a CSR?

CSR generation instructions

• cPanel
• Apache OpenSSL/ModSSL/Nginx/Heroku
• WHM
• Tomcat (using keytool)
• Plesk 12
• Plesk Onyx
• IIS 7
• IIS 8&10
• DirectAdmin
• Exchange 2007 (PowerShell)
• AWS
• Synology NAS
• Vesta CP
• Mac OS X Server/Yosemite/El Capitan
• Mac OS via Keychain
• Sun Java System Web Server 7.x
• Webmin
• Node.js
• Exchange 2013 (EAC)
• Exchange 2013 (Shell)
• Exchange 2010
• Glassfish
• Zimbra
• Google Cloud Service
• using MMC/Certreq/Powershell on a Windows-based server
• SonicWall
• Citrix NetScaler VPX
• CWP 7
• Certreq
• Namecheap EasyWP App
• Unifi
  
• ISPConfig
  
• Windows with OpenSSL
  

Note: CSR codes should have no less than 2048-bit key size.

CSR Generation Notes

Alternatively, the following online tool can be used to generate CSR: https://decoder.link/csr_generator. Please make sure to save both CSR and the Private Key codes, as the latter one will be required for the certificate installation process on the server.

If you are activating a Multi-Domain certificate, and your server does not allow you to generate a CSR for multiple common names, activate your certificate using just one common name. You will be able to add all required Subject Alternative Names (SANs) through your Namecheap account during the activation process.

If you're using hosting services from Namecheap, click here for instructions.

Please note: Normally, a dedicated IP address is required for SSL installation. However, you may install your SSL certificate on a shared IP address using the Server Name Indication (SNI) protocol extension available in your cPanel. You can learn more about the differences between a dedicated IP and SNI technology in the SNI Technology guide. When contacting our support team regarding this issue, please specify whether you wish to order a dedicated IP address or have your SSL installed on a server's shared IP.