Tailscale incident: Certificate creation issues

1. resolvedAug 17, 2026, 13:00 UTC

   There have been no further problems, and the incident has been resolved.

2. monitoringAug 13, 2026, 17:18 UTC

   We have identified the problem, and a fix has been deployed. We are monitoring for any further problems.

3. investigatingAug 12, 2026, 13:25 UTC

   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.

4. monitoringAug 12, 2026, 09:30 UTC

   A fix has been deployed and we are monitoring for any further problems.

5. identifiedAug 11, 2026, 16:28 UTC

   We have identified the problem and are rolling out a fix.

6. investigatingAug 11, 2026, 12:30 UTC

   We are investigating 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.

7. resolvedAug 11, 2026, 00:42 UTC

   This incident has been resolved.

8. monitoringAug 10, 2026, 18:29 UTC

   A fix has been deployed and we are monitoring for any further problems.

9. identifiedAug 10, 2026, 17:19 UTC

   We have identified the problem and are rolling out a fix.

10. investigatingAug 10, 2026, 16:10 UTC

    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.

What APIStatus.watch saw

Our 5-minute checks didn't record a change in Tailscale's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

Other services with incidents at the same time

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• RevenueCat: Elevated error rates on RevenueCat APIsMajor · Aug 10, 2026, 18:37 UTC
• GitHub: Disruption with creation of fine grained personal access tokensMinor · Aug 10, 2026, 18:02 UTC
• GitHub: Disruption with Copilot for access to some modelsMinor · Aug 10, 2026, 20:27 UTC
• Inngest: Delayed function execution for 15 minutesMinor · Aug 10, 2026, 23:06 UTC
• dbt Cloud: Potential intermittent admin APIs requests failingMinor · Aug 10, 2026, 23:26 UTC

How often does Tailscale have incidents?

Tailscale reported 20 incidents in the last 90 days, 3 of them major or critical. A typical incident lasted 2h 46m. See Tailscale's uptime and incident history