Public Trust & Certificates

How long are TLS/SSL certificate validity
periods?

How long are TLS/SSL certificate validity periods?

TLS/SSL certificate validity periods are currently 398 days, or about 13 months. They were recently reduced by the CA/B Forum starting Sept. 1, 2020 in response to Apple’s announcement stating they would not accept certificates for two-year validity periods. DigiCert has instituted a 397-day validity period in order to account for time zone differences.

As a response to shortened validity periods, DigiCert has introduced TLS/SSL certificate Multi-year Plans that allow for up to six years of TLS/SSL certificate coverage provided that the certificate is revalidated and reissued every year.

Related articles:

https://www.digicert.com/blog/1-year-public-trust-ssl-certificates 

https://docs.digicert.com/manage-certificates/end-2-year-public-ssl-certificates/ 

https://knowledge.digicert.com/generalinformation/2-year_Certificate_Availability.html