Tailscale Outage History

An issue affected Tailscale's homepage and documentation site, causing errors when accessing the tailscale.com/kb pages. The outage began at 2:42 PM UTC and was resolved by 3:07 PM UTC, lasting about 25 minutes. The Documentation component (tailscale.com) was the primary affected area, with users seeing page errors while the rest of the service remained operational. The Tailscale status page posted three updates during the incident, moving from down to warn and then back to up as services recovered.

An authentication issue briefly disrupted sign-in for Tailscale users. The problem affected the Coordination server and the Admin console (login.tailscale.com), causing internal server errors during the login process. The outage began at 1:48 PM UTC and lasted about 54 minutes, resolving by 2:42 PM UTC.

Status updates showed engineers were investigating authentication errors and working to restore normal access. The issue was resolved and services returned to normal by 2:42 PM UTC, with two official updates published during the incident.

Tailscale reported a brief issue affecting Mullvad exit nodes that blocked new Mullvad registrations. Existing Mullvad-registered devices remained functional, and there was no indication of broader service problems. The Mullvad registration flow was impaired, with the status page noting Mullvad registration failures and that engineers were investigating whether the issue related to Mullvad's DAITA servers. The incident began at 12:02 PM UTC and was resolved by 12:17 PM UTC. The provider issued two status updates during the incident.

Users attempting to access tailscale.com/kb pages encountered errors during the incident, affecting the Homepage and Documentation on tailscale.com. The issue began at Sep 23, 2025 8:12 PM UTC and caused doc page load failures until Sep 23, 2025 9:42 PM UTC. The incident lasted about 1 hour and 30 minutes. Tailscale rolled back the deployment that caused the problem while investigating, and the docs pages were restored after the rollback. The incident prompted two official status updates from Tailscale during the disruption.

The response centered on a rollback of the problematic deployment and ongoing investigation, with access to the documentation pages returning to normal by the end of the incident.

StatusGator detected an issue at Sep 16, 2025 3:23 AM UTC, 14 minutes before the provider's official acknowledgment. The outage involved Tailscale's coordination server and blocked starting new connections for some users, while existing connections remained active. The early warning signal ran from 3:23 AM UTC to 3:54 AM UTC. The provider acknowledged the problem at 3:37 AM UTC with an update noting coordination server issues and that investigations were underway.

Tailscale faced authentication errors that prevented sign-ins for some users, with an 'unable to resolve tailnet' error. The issue affected two components: Coordination server and the Admin console (login.tailscale.com). The incident began at Sep 4, 2025 12:57 PM UTC and was resolved by Sep 4, 2025 1:27 PM UTC, lasting about 30 minutes.

An incident affected Tailscale's package server, pkgs.tailscale.com, causing some users to receive invalid or corrupt package downloads. The issue began at Sep 2, 2025 12:12 PM UTC and was resolved by Sep 2, 2025 4:22 PM UTC, during which the package server was listed as degraded. The provider issued two status updates describing the degraded download service and the subsequent restoration to normal operation, with downloads resuming after the second update. The disruption was limited to the package distribution path and did not reflect a broader outage of other Tailscale services.

Tailscale experienced control server problems that affected the admin console and overall control plane. Users reported login difficulties to login.tailscale.com and issues reaching tailnet components, with exit nodes sometimes not connecting.

Tailscale's Serve and Funnel TLS certificate provisioning failed due to an upstream CA outage, preventing issuance of new certificates. Existing certificates remained valid until expiry. The issue was isolated to the Certificates component and did not represent a full platform outage.

The outage began at Jul 21, 2025 11:57 PM UTC and was resolved by Jul 22, 2025 3:48 AM UTC, lasting about 3 hours and 51 minutes. The provider issued two official status updates during the incident describing the CA outage and the restoration of certificate provisioning.

DNS resolution issues on login.tailscale.com, controlplane.tailscale.com, and api.tailscale.com caused problems with admin panel access, device login prompts, coordination server connectivity, and API access. The incident began at 1:37 PM UTC and was resolved by 2:13 PM UTC, lasting about 36 minutes and affecting 3 components: Admin console (login.tailscale.com), Coordination server (controlplane.tailscale.com), and API (api.tailscale.com). The provider issued 2 status updates during the incident, describing the issue and later confirming resolution.