Alibaba Cloud Certificate Management Service allows you to renew a certificate before it expires. The remaining validity period of the original certificate is added to the validity period of the renewed certificate. This prevents the website that is protected by the certificate from being identified as insecure if the certificate is not updated in time. You can log on to the Certificate Management Service console to renew a certificate that is about to expire.
A purchased certificate is a certificate that you purchase on the Certificate Management Service buy page.
A renewed certificate differs from a purchased certificate in the following aspects:
- The remaining validity period of the original certificate is added to the validity period of the renewed certificate. Note If your existing certificate is due to expire and you purchase a new certificate instead of renewing the existing certificate, the remaining validity period of the existing certificate cannot be added to the new certificate. For example, a certificate expires on August 1, 2022. If the certificate is renewed and the renewed certificate is issued on July 20, 2022, the validity period of the renewed certificate starts from July 20, 2022 and ends on July 20, 2023.
- A renewed certificate is issued faster than a purchased certificate.
- When you apply for a purchased certificate, you must enter application information. You do not need to enter application information for a renewed certificate. Note Alibaba Cloud Certificate Management Service stores the information about your certificate application. When you apply for a certificate after it is renewed, the system automatically specifies the historical information that you entered when you previously applied for the certificate.