Tailscale experienced a minor incident on August 3, 2026 affecting Certificates and Funnel, lasting —. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Aug 03, 2026, 08:39 AM UTC
Status: 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 and Funnel. Existing certificates and services currently exposed by Serve and Funnel will remain unaffected as long as the current certificates stay valid. Affected components Funnel (Degraded performance)
- investigating Aug 03, 2026, 09:41 AM UTC
Status: Investigating Our engineers have identified that this incident also affects creation of new Funnel and Serve domains. Existing Funnel and Serve domains remain unaffected. Affected components Certificates (Degraded performance) Funnel (Degraded performance)
- monitoring Aug 03, 2026, 10:47 AM UTC
Status: Monitoring A fix has been deployed and we are monitoring for any further problems. Affected components Certificates (Degraded performance) Funnel (Degraded performance)
- investigating Aug 03, 2026, 11:12 AM UTC
Status: Investigating During our monitoring of this fix, we have noticed an increase in the error rate, which our engineers are investigating further. Affected components Funnel (Degraded performance) Certificates (Degraded performance)
- monitoring Aug 03, 2026, 02:41 PM UTC
Status: Monitoring A fix has been deployed and we are monitoring for any further problems. Affected components Certificates (Degraded performance) Funnel (Degraded performance)
- resolved Aug 03, 2026, 04:24 PM UTC
Status: Resolved This incident has been resolved. Affected components Certificates (Operational) Funnel (Operational)