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DigiCert Utility

https://www.digicert.com/util/utility-check-ssl-certificate-chain.htm

Description
The free DigiCert Certificate Utility for Windows is an indispensable tool for administrators and a must-have for anyone that uses SSL Certificates for Websites and servers or Code Signing Certificates for trusted software with features like automatic CSR creation and SSL Certificate installation, easy code signing, and certificate troubleshooting and management.