This topic describes how to manage individual test certificates (free) after they expire.
In most cases, Alibaba Cloud CDN automatically renews individual test certificates (free) four days before they expire. However, individual test certificates (free) used by Alibaba Cloud CDN are issued by certificate authorities (CAs) and renewal applications may fail. We recommend that you purchase individual test certificates (pro) or official certificates from SSL Certificates Service. Paid certificates provide better technical support. For more information, see Purchase SSL certificates.