Outage in Tailscale
Certificate creation issues
Resolved Major
June 12, 2026 - Started 7 days ago
- Lasted about 4 hours
Incident Report
Summary AI Generated
Tailscale experienced a major incident affecting certificate creation for MagicDNS hostnames, preventing manual certificate issuance and deployment of new services through Tailscale Serve or Funnel. Existing certificates and currently running services remained operational throughout the incident. The issue was identified and resolved with a deployed fix after 4.1 hours, with ongoing monitoring to ensure stability.
We are investigating a problem which is causing problems with issuing new certificates for MagicDNS hostnames. This problem affects manual certificate issuance and the deployment of new services through Tailscale Serve or Tailscale Funnel.
Existing certificates and services currently exposed by Serve or Funnel will remain unaffected as long as the current certificates stay valid.
Components affected
Tailscale CertificatesTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
MONITORING
6 days ago - at 06/12/2026 11:59PM
A fix has been deployed and we are monitoring for any further problems.
IDENTIFIED
7 days ago - at 06/12/2026 09:33PM
We have identified the problem that is causing problems with issuing new certificates for MagicDNS hostnames. We are working on a fix.
INVESTIGATING
7 days ago - at 06/12/2026 08:29PM
We are investigating a problem which is causing problems with issuing new certificates for MagicDNS hostnames. This problem affects manual certificate issuance and the deployment of new services through Tailscale Serve or Tailscale Funnel.
Existing certificates and services currently exposed by Serve or Funnel will remain unaffected as long as the current certificates stay valid.
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