Does an SSL/TLS certificate have an unlimited validity period?

No, an SSL/TLS certificate does not have an unlimited validity period.

The CAB Forum (CA/Browser Forum) has decided that since the beginning of 2015 SSL/TLS certificates may only be issued with a maximum term of 3 years for domain and organization validated certificates and a maximum term of 2 years for extended validation certificates.

If you have any further questions, please contact our support team on +49 661 480 276 10.