Outage in Tailscale
Certificate creation issues
Resolved Minor
March 18, 2026 - Started about 1 month ago
- Lasted about 3 hours
Incident Report
Summary AI Generated
Tailscale experienced a 3.5-hour certificate creation issue that prevented new certificate issuance for MagicDNS hostnames, affecting manual certificate requests and new deployments through Tailscale Serve or Funnel. Existing certificates and currently running services remained functional throughout the incident. The problem was identified and resolved with a deployed fix, followed by monitoring for 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
about 1 month ago - at 03/18/2026 01:54PM
A fix has been deployed and we are monitoring for any further problems.
IDENTIFIED
about 1 month ago - at 03/18/2026 12:22PM
We have identified the problem and are rolling out a fix.
INVESTIGATING
about 1 month ago - at 03/18/2026 10:43AM
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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