Ask a Question

Advanced Search

Alert ID : AL080720143527

Last Modified : 12/20/2021

IP Address Changes



As part of our scheduled maintenance on September 13, 2020 between 1 am – 3 am MDT (07:00 - 09:00 UTC), DigiCert is assigning new dedicated IP addresses to our CertCentral mail server, some of our services, and APIs.


What do I need to do?

Update allowlists (lists for firewalls that only allow specified IP addresses to perform certain tasks or connect to your system) and email filters by September 13, 2020 to ensure you don’t miss important emails and your DigiCert services and API integrations continue to run. The new IP addresses are in the tables below.


DigiCert email IP address update



New IP address

CertCentral emails, such as:

  • Certificate issuance
  • Order approval
  • Domain validation
  • Organization validation
  • Expiring certificate

DigiCert services IP address updates


URL / IP Address

New IP address

Direct Cert Portal

Direct Cert Portal API

API access

Discovery sensor firewall settings

Discovery API


ACME agent automation


CertCentral Services API

Certificate Issuing Service (CIS)

Simple Certificate Enrollment Protocol (SCEP)

DigiCert website