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Alert ID : AL220622171639

Last Modified : 06/27/2022

New Dedicated IP Addresses

URGENT

Description

On October 10, 2022, at 08:00 MDT (14:00 UTC), DigiCert will assign new dedicated IP addresses to TLS Online Certificate Status Protocol (OCSP), TLS Certificate Revocation List (CRL), and a few other DigiCert services. Once DigiCert starts using the new IP addresses, the old IP addresses will no longer work.

What do I need to do?

Does your company use allowlists?

  • If not, no action is required. Your services will continue to work as before the change to the new IP addresses.
  • If yes, you need to update your allowlists to include the new IP addresses by October 10, 2022, to keep your DigiCert services running as before the change to the new IP addresses.

Affected services

  • TLS OCSP
  • TLS CRL
  • PKI Platform 8 CRLs
  • PKI Platform 8 Certificate Authority (CA) certificates
  • PKI client download

DigiCert services new dedicated IP addresses

Service URL New IP addresses
TLS OCSP ocsp.digicert.com
  • 192.229.211.108
  • 192.229.221.9
  • 152.195.38.76
  • 192.16.49.85
TLS CRL

crl3.digicert.com

crl4.digicert.com

PKI Platform 8 CRLs See the attached csv file.
PKI Platform 8 CA certificates See the attached csv file.
PKI client download

pkiclient-updater.digicert.com

pki-downloads.digicert.com