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Incident detail

Certificate creation issues

Certificate creation issues

Resolved incidentMajor0 affected services

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  1. Investigating

    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. Error rates are noted to have been higher since 2026-05-31 19:16 UTC Existing certificates and services currently exposed by Serve or Funnel will remain unaffected as long as the current certificates stay valid.

  2. Identified

    We have identified the problem and are rolling out a fix

  3. Monitoring

    A mitigation was deployed shortly after 1pm UTC for the issue impacting certificate creation. We have seen no recurrences in the last hour and we are now monitoring the situation.

  4. Resolved

    This incident has been resolved.