Taiwan Information Security Association

Certificate revocationFri, 23 Oct 2026

GoDaddy SSL certificate revocation: deploy replacements and verify live services

GoDaddy revoked a batch of affected SSL certificates on October 21, 2026 after a CP/CPS certificate profile issue led to incorrect issuance. Services still presenting a revoked certificate may show warnings or fail to connect, affecting transactions, sign-ins and API integrations.

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Article

GoDaddy revoked a batch of affected SSL certificates on October 21, 2026 after a CP/CPS certificate profile issue led to incorrect issuance. Services still presenting a revoked certificate may show warnings or fail to connect, affecting transactions, sign-ins and API integrations.

Attack flowHow disruption occurs
  1. 01

    Incorrectly issued certificate is revoked

  2. 02

    A TLS endpoint still serves the old certificate

  3. 03

    Clients may warn or reject the connection

  • Inventory GoDaddy-managed certificates across CDNs, load balancers, reverse proxies, standby nodes and managed hosting. Follow the notification for each certificate.
  • “Install your new certificate” means reissuance is complete and the site still serves the old certificate. “We couldn’t check your website” leaves verification outstanding. Follow the per-certificate instructions for “No action needed.”
  • Ask providers for the installed serial number, installation time and verification result for each endpoint. Test HTTPS, SNI, the complete chain, failover, TLS pinning and older clients. Keep TLS certificate validation enabled.
Response flowResponse steps
  1. 01

    Confirm the notification

    Use the established GoDaddy sign-in page and review the notification for each certificate.

  2. 02

    Obtain replacement certificates

    Download the reissued certificate or follow the replacement procedure for the product.

    See what to doResources: 1

    TWISA member solutions

    Obtain replacement certificates

    Download the reissued certificate or follow the replacement procedure for the product.

  3. 03

    Deploy to all TLS endpoints

    Install the replacement and full chain at every TLS termination point and reload the service as required.

    See what to doResources: 1

    TWISA member solutions

    Deploy to all TLS endpoints

    Install the replacement and full chain at every TLS termination point and reload the service as required.

  4. 04

    Verify and monitor

    Verify the serial number, expiry and chain. Test login, payment, APIs and failover.

    See what to doResources: 2

    TWISA member solutions

    Verify and monitor

    Verify the serial number, expiry and chain. Test login, payment, APIs and failover.

Defense architectureLayered defenses

Allow authorized traffic and apply controls at each layer.

  1. 01

    Confirm the notification

    Use the established GoDaddy sign-in page and review the notification for each certificate.

  2. 02

    Obtain replacement certificates

    Download the reissued certificate or follow the replacement procedure for the product.

  3. 03

    Deploy to all TLS endpoints

    Install the replacement and full chain at every TLS termination point and reload the service as required.

Feed logs and traffic data from each layer into monitoring and response.

  1. Verify and monitorVerify the serial number, expiry and chain. Test login, payment, APIs and failover.

TWISA member solutions

Sources and further reading

Alert updated: 2026/10/25. Check vendor guidance for the latest support and patch status.