Critical incident

DigiCert: Issue connecting to ocsp.digicert.cn

Affected: Certificate Revocation List (CRL), ocsp.digicert.cn

Current status of DigiCert: Operational — live DigiCert status

Timeline

1. Apr 23, 2026, 08:14 UTC
   investigating
   We are currently having a connectivity issue with one of our OCSP service - ocsp.digicert.cn . We are working with the relevant teams to identify and fix the issue.
2. Apr 23, 2026, 09:01 UTC
   identified
   We have identified that the connectivity issue with the ocsp.digicert.cn and crl.digicert.cn is due to an issue at one of our 3rd Party CDN provider. We are currently working with the CDN provider's support team to resolve the issue.
3. Apr 23, 2026, 11:37 UTC
   monitoring
   The issue has been fixed by the 3rd Party CDN provider. The connectivity to ocsp.digicert.cn and crl.digicert.cn are successful.
4. Apr 23, 2026, 14:26 UTC
   resolved
   This incident has been resolved.

Updates as published by DigiCert (original).