Resolved after 7 hours 44 minutes, affecting Certificates and Funnel, on August 3, 2026.
A fix has been deployed and we are monitoring for any further problems.
Affected components
Update timeline
- investigating Aug 03, 2026, 08:39 AM 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 and Funnel. Existing certificates and services currently exposed by Serve and Funnel will remain unaffected as long as the current certificates stay valid.
- investigating Aug 03, 2026, 09:41 AM UTC
Our engineers have identified that this incident also affects creation of new Funnel and Serve domains. Existing Funnel and Serve domains remain unaffected.
- monitoring Aug 03, 2026, 10:47 AM UTC
A fix has been deployed and we are monitoring for any further problems.
- investigating Aug 03, 2026, 11:12 AM UTC
During our monitoring of this fix, we have noticed an increase in the error rate, which our engineers are investigating further.
- monitoring Aug 03, 2026, 02:41 PM UTC
A fix has been deployed and we are monitoring for any further problems.
- resolved Aug 03, 2026, 04:24 PM UTC
This incident has been resolved.
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