When does the validity period of an SSL certificate start?

The validity period of an SSL certificate strictly follows the standard, and it starts counting from the moment the certificate is successfully issued.

Tip

1. To view the validity period of a purchased certificate, please log in to your Racent account -> SSL Certificates -> select the order to view details.
2. You can double-click the downloaded certificate file. Certificate files usually end with .crt, and the certificate validity period will be displayed on it.

Detailed explanation of effective rules

1. Effective-upon-issuance principle

   • It is not affected by the purchase time or installation time.
   • Example: Certificate validity period: 12/05/2025-10/05/2026

2. Validity period calculation standard

   • The validity period calculation varies by brand. Please refer to:

     Certificate Brand	sslTrus	Sectigo	Digicert	Globalsign	CFCA	Certum
     Available order period	1-5 years	1-5 years	1-3 years	1 year	1 year	1 year
     Default validity period	1 year	1 year	1 year	13 months	1 year	1 year
     Renewal rule	Connection period	Connection period	Connection period	13 months	1 year	1 year