# Multi-Year Certificate FAQs

## 1. Why is the certificate validity only one year for the purchased multi-year certificate?

   Due to the Apple browser's requirements for certificates, the SSL certificate validity does not exceed 398 days (13 months). A multi-year certificate issues a valid certificate for one year at a time. After each year's verification is completed, the certificate is automatically issued. Customers need to re-download and deploy the certificate.

    Verification process:
    First year: Business identity verification + domain name verification
    Second year: Domain name verification (the validity of corporate identity is 398 days, and only the domain name ownership needs to be verified in the second year)
    Third year: Business identity verification + domain name verification
   
 ## 2. Will there be a second charge for subsequent verification of multi-year certificates?
     
     Multi-year certificates are charged only once, and there will be no second charge later
     
## 3. Explanation of Apple browser's security requirements for SSL certificates

For more details, please visit: https://docs.ucloud.cn/ussl/faq/Safari