Digicert SSL Certificates being deprecated by Cloudflare

Digicert SSL certificates are being deprecated by Cloudflare and therefore as of Oct 26, 2023 Digicert is not longer available for new SSL orders and renewals.

We currently have an Advanced SSL Certificate that uses Digicert as the certificate authority.

We need to migrate this certificate to use lets_encrypt as the certificate authority and create the required validation records as per https://developers.cloudflare.com/ssl/reference/migration-guides/digicert-update/advanced-certificates/

Update

When attempting to implement this we caused incident production#17265 (closed) therefore we switched to a Custom SSL certificate for the meantime. Before we attempt this again we need to give a heads up to customers with at least a couple of months in advance to ensure their systems are ready to support the Let's Encrypt CA Chain.