# Buildkite incident history - **Buildkite**: [Elevated API latency (single customer)](https://down.guide/buildkite/DWN-0649147087) (Partial outage; lasted 0m; started 2026-11-04 23:39 UTC) - **Buildkite**: [Increased error rates on Agent API](https://down.guide/buildkite/DWN-1666ac0fbe) (Degraded; lasted 3h 29m; started 2026-11-04 19:13 UTC; Agent API) - **Buildkite**: [Increased latency and error rates](https://down.guide/buildkite/DWN-702053823c) (Degraded; lasted 19m; started 2026-11-04 06:17 UTC) - **Buildkite**: [Increased latency and error rates](https://down.guide/buildkite/DWN-94fa5ac9a4) (Degraded; lasted 1h 30m; started 2026-11-03 22:38 UTC; Job Queue) - **Buildkite**: [Elevated API error rates](https://down.guide/buildkite/DWN-f1ffb26239) (Partial outage; lasted 31m; started 2026-11-03 19:42 UTC; REST API, Agent API) - **Buildkite**: [Increased latency and error rates](https://down.guide/buildkite/DWN-c043f21cee) (Degraded; lasted 2h 8m; started 2026-11-03 18:14 UTC; Job Queue) - **Buildkite**: [Elevated job dispatch times](https://down.guide/buildkite/DWN-43fb169e7a) (Degraded; lasted 2h 1m; started 2026-10-29 19:57 UTC; Job Queue) - **Buildkite**: [Increased latency and error rates](https://down.guide/buildkite/DWN-5023b6f030) (Degraded; lasted 32m; started 2026-10-28 23:17 UTC; REST API, Agent API) - **Buildkite**: [Elevated API latency and error rates](https://down.guide/buildkite/DWN-e876470e8c) (Degraded; lasted 0m; started 2026-10-26 18:31 UTC) - **Buildkite**: [Elevated error rates](https://down.guide/buildkite/DWN-61be78e79b) (Degraded; lasted 0m; started 2026-10-24 23:40 UTC; REST API, Web, Agent API +2) - **Buildkite**: [Delays with Hosted Agents jobs](https://down.guide/buildkite/DWN-d6882920d8) (Degraded; lasted 46m; started 2026-10-22 16:51 UTC; Hosted Agents) - **Buildkite**: [Buildkite response to the eMudhra certificate compromise](https://down.guide/buildkite/DWN-c8c3138b57) (Degraded; lasted 1d; started 2026-10-20 22:13 UTC) - **Buildkite**: [Delayed notifications](https://down.guide/buildkite/DWN-4426db8287) (Degraded; lasted 1h 8m; started 2026-10-20 19:57 UTC; GitHub Commit Status Notifications, Email Notifications, Slack Notifications +1) - **Buildkite**: [Delayed Hosted Agents instance creation](https://down.guide/buildkite/DWN-0bab220b77) (Degraded; lasted 0m; started 2026-10-19 15:45 UTC) - **Buildkite**: [Degraded checkout performance with Hosted Agents](https://down.guide/buildkite/DWN-1fd9cce4bc) (Degraded; lasted 5h 40m; started 2026-10-06 18:19 UTC; Hosted Agents) - **Buildkite**: [Small number of incoming GitHub Webhook failing](https://down.guide/buildkite/DWN-07c0dce01a) (Degraded; lasted 47m; started 2026-10-01 06:10 UTC; GitHub Webhooks) - **Buildkite**: [macOS hosted agent jobs not starting](https://down.guide/buildkite/DWN-9fd5ce0c8e) (Partial outage; lasted 0m; started 2026-09-30 06:30 UTC) - **Buildkite**: [Delayed notifications](https://down.guide/buildkite/DWN-5e5f718ef7) (Degraded; lasted 1h 29m; started 2026-09-30 01:03 UTC; GitHub Commit Status Notifications, Email Notifications, Slack Notifications +1) - **Buildkite**: [Issues with webhook ingestion, GraphQL queries](https://down.guide/buildkite/DWN-eb6ced612c) (Partial outage; lasted 42m; started 2026-09-22 20:07 UTC) - **Buildkite**: [AWS us-east-1 outage](https://down.guide/buildkite/DWN-e72f3e23b9) (Degraded; lasted 45m; started 2026-09-21 23:47 UTC; us, us-east-1) - **Buildkite**: [Increased latency and error rates](https://down.guide/buildkite/DWN-c3f55345b1) (Degraded; lasted 1h 10m; started 2026-09-21 22:35 UTC; Agent API) - **Buildkite**: [Buildkite service disruption](https://down.guide/buildkite/DWN-d9578758fc) (Partial outage; lasted 6h 47m; started 2026-09-09 19:07 UTC; REST API, Web, Agent API +1; us) - **Buildkite**: [Hosted Agents - Increased latency and error rates](https://down.guide/buildkite/DWN-e90089f44b) (Degraded; lasted 57m; started 2026-09-04 01:42 UTC; Hosted Agents, MacOS, Linux (ARM64) +1) - **Buildkite**: [Scheduling delay for hosted agents](https://down.guide/buildkite/DWN-b2f8ca4866) (Degraded; lasted 1h 6m; started 2026-09-03 06:00 UTC; Hosted Agents) - **Buildkite**: [Delays in Hosted Agents job dispatch](https://down.guide/buildkite/DWN-e240338db3) (Partial outage; lasted 1h 5m; started 2026-09-02 14:45 UTC; Hosted Agents, MacOS, Linux (ARM64) +1) - **Buildkite**: [Delivery issues with email notifications](https://down.guide/buildkite/DWN-4951a3b7e9) (Degraded; lasted 1h 20m; started 2026-09-01 15:32 UTC; Email Notifications) - **Buildkite**: [Test Engine ingestion delayed, catching up](https://down.guide/buildkite/DWN-76e9a67728) (Degraded; lasted 51m; started 2026-08-27 10:56 UTC; Ingestion) - **Buildkite**: [Issues identified with buildkite-agent registration](https://down.guide/buildkite/DWN-3495e10d3d) (Degraded; lasted 1h 31m; started 2026-08-26 01:42 UTC; Agent API) - **Buildkite**: [Buildkite service disruption](https://down.guide/buildkite/DWN-ec5ffe2730) (Partial outage; lasted 1h 23m; started 2026-08-25 22:55 UTC; REST API, Web, GitHub Commit Status Notifications +6) - **Buildkite**: [Unexpected agent disconnection for some customers](https://down.guide/buildkite/DWN-cb94ec8114) (Degraded; lasted 1h 35m; started 2026-08-25 06:41 UTC; Agent API) - **Buildkite**: [Buildkite service disruption](https://down.guide/buildkite/DWN-4de451e79e) (Degraded; lasted 1h 57m; started 2026-08-17 00:46 UTC; Hosted Agents) - **Buildkite**: [Slow web UI](https://down.guide/buildkite/DWN-53160ab6c2) (Degraded; lasted 59m; started 2026-08-13 15:41 UTC; Web, Web) - **Buildkite**: [Buildkite service disruption](https://down.guide/buildkite/DWN-316ee3e60b) (Degraded; lasted 1h 25m; started 2026-08-12 02:44 UTC; Agent API) - **Buildkite**: [Slow web UI](https://down.guide/buildkite/DWN-12a11fc997) (Degraded; lasted 3h 3m; started 2026-08-10 23:00 UTC; Web, Web) - **Buildkite**: [Pipelines latency and webhook errors](https://down.guide/buildkite/DWN-94a58a6bc8) (Degraded; lasted 0m; started 2026-08-05 23:13 UTC) - **Buildkite**: [Latency on Pipelines](https://down.guide/buildkite/DWN-ff27f09158) (Partial outage; lasted 26m; started 2026-08-03 05:11 UTC; Job Queue; us) - **Buildkite**: [Delayed notifications](https://down.guide/buildkite/DWN-8ef2d1394a) (Degraded; lasted 19m; started 2026-07-28 20:38 UTC; GitHub Commit Status Notifications, Email Notifications, Slack Notifications +1) - **Buildkite**: [Increased latency and error rates](https://down.guide/buildkite/DWN-31b21886cb) (Partial outage; lasted 1h 38m; started 2026-06-18 08:05 UTC; REST API) - **Buildkite**: [Increased latency on REST and GraphQL APIs](https://down.guide/buildkite/DWN-be895db373) (Partial outage; lasted 58m; started 2026-06-11 23:18 UTC; REST API, Remote MCP Server) - **Buildkite**: [Increased latency and error rates for Agent API](https://down.guide/buildkite/DWN-7dacd33e1b) (Degraded; lasted 19m; started 2026-06-11 00:32 UTC; Agent API) - **Buildkite**: [Email deliveries are delayed](https://down.guide/buildkite/DWN-5f7667670a) (Degraded; lasted 0m; started 2026-05-31 23:45 UTC) - **Buildkite**: [Delayed notifications](https://down.guide/buildkite/DWN-3872e9bd96) (Partial outage; lasted 58m; started 2026-05-28 20:20 UTC; GitHub Commit Status Notifications, Email Notifications, Slack Notifications +1) - **Buildkite**: [Increased latency and error rates](https://down.guide/buildkite/DWN-181159ce3a) (Degraded; lasted 41m; started 2026-05-26 09:56 UTC; GitHub Commit Status Notifications, Email Notifications, Slack Notifications +1; us) - **Buildkite**: [Delayed notifications](https://down.guide/buildkite/DWN-28a3f8f0fc) (Partial outage; lasted 59m; started 2026-05-20 16:40 UTC; GitHub Commit Status Notifications, Email Notifications, Slack Notifications +1; us) - **Buildkite**: [Delayed Test Engine ingestion processing](https://down.guide/buildkite/DWN-bf2bce0658) (Degraded; lasted 44m; started 2026-05-15 06:51 UTC; Ingestion) - **Buildkite**: [Error rates increasing](https://down.guide/buildkite/DWN-7b1796cf92) (Degraded; lasted 20m; started 2026-05-13 15:14 UTC; REST API, Web, Remote MCP Server) - **Buildkite**: [Delayed Test Engine ingestion processing](https://down.guide/buildkite/DWN-6cfb17ba46) (Degraded; lasted 3h 10m; started 2026-05-12 12:59 UTC; Ingestion) - **Buildkite**: [Delayed Test Engine ingestion processing](https://down.guide/buildkite/DWN-00aef5fb11) (Degraded; lasted 2h 32m; started 2026-05-08 21:10 UTC; Ingestion) - **Buildkite**: [Delayed Test Engine ingestion processing](https://down.guide/buildkite/DWN-6b8c9b6a2c) (Degraded; lasted 46m; started 2026-05-08 12:20 UTC; GitHub Commit Status Notifications, Email Notifications, Ingestion +2) - **Buildkite**: [AWS us-east-1 single availability zone outage](https://down.guide/buildkite/DWN-18c1ab1027) (Degraded; lasted 1d 3h; started 2026-05-08 01:12 UTC; us, us-east-1) - **Buildkite**: [Delays in job dispatch, webhook processing, and outbound webhooks](https://down.guide/buildkite/DWN-b324d09d96) (Partial outage; lasted 1h 28m; started 2026-05-07 22:45 UTC; Job Queue, Webhook Notifications) - **Buildkite**: [Jobs not starting on hosted agents and agent-stack-k8s](https://down.guide/buildkite/DWN-d1996baaa0) (Partial outage; lasted 50m; started 2026-05-07 08:48 UTC; Agent API) - **Buildkite**: [Test Engine: Delayed processing of test result ingestion](https://down.guide/buildkite/DWN-c6637b995c) (Degraded; lasted 1h 29m; started 2026-05-06 03:57 UTC; Ingestion) - **Buildkite**: [Delayed notifications](https://down.guide/buildkite/DWN-86d1ab2982) (Degraded; lasted 2h 34m; started 2026-05-04 17:02 UTC; GitHub Commit Status Notifications, Email Notifications, Slack Notifications +1) - **Buildkite**: [Increased latency and error rates](https://down.guide/buildkite/DWN-13b6b645f0) (Degraded; lasted 28m; started 2026-05-04 06:02 UTC; Agent API) - **Buildkite**: [Buildkite service disruption](https://down.guide/buildkite/DWN-ce705d75e0) (Partial outage; lasted 50m; started 2026-05-01 02:41 UTC) - **Buildkite**: [Increased latency and error rates](https://down.guide/buildkite/DWN-109deadf3e) (Degraded; lasted 1h 5m; started 2026-04-29 17:43 UTC; Agent API) - **Buildkite**: [Increased dispatch latency and error rates](https://down.guide/buildkite/DWN-33eed89efc) (Degraded; lasted 1h 16m; started 2026-04-28 18:00 UTC; Hosted Agents) - **Buildkite**: [Auth failures with remote MCP server](https://down.guide/buildkite/DWN-7aec4e3894) (Degraded; lasted 1h 40m; started 2026-04-22 21:19 UTC) - **Buildkite**: [Delayed processing of test execution](https://down.guide/buildkite/DWN-f625a39d2b) (Degraded; lasted 2h 36m; started 2026-04-22 02:32 UTC; Ingestion) - **Buildkite**: [Degraded performance and increased error rates](https://down.guide/buildkite/DWN-502db84138) (Partial outage; lasted 46m; started 2026-04-08 22:26 UTC; GitHub Commit Status Notifications, Email Notifications, Agent API +2) - **Buildkite**: [Hosted Agents jobs immediately cancelled](https://down.guide/buildkite/DWN-1e881a846e) (Degraded; lasted 43m; started 2026-03-31 07:51 UTC; Hosted Agents) - **Buildkite**: [504 errors viewing builds](https://down.guide/buildkite/DWN-ace4718394) (Degraded; lasted 1h 51m; started 2026-03-27 07:02 UTC; Web) - **Buildkite**: [Increased Delays with Hosted Agents](https://down.guide/buildkite/DWN-6204c77c24) (Degraded; lasted 1h 24m; started 2026-03-25 14:26 UTC; Hosted Agents, MacOS, Linux (ARM64) +1) - **Buildkite**: [Increased queue times on hosted agents](https://down.guide/buildkite/DWN-b01b7371ed) (Partial outage; lasted 1h 25m; started 2026-03-11 19:50 UTC; Hosted Agents) - **Buildkite**: [Increased error rates from Test Plan API](https://down.guide/buildkite/DWN-8efb8aa59c) (Partial outage; lasted 8h 13m; started 2026-03-10 01:21 UTC; REST API) - **Buildkite**: [Elevated ingestion latency for Test Engine](https://down.guide/buildkite/DWN-91046d07f2) (Degraded; lasted 44m; started 2026-03-07 00:21 UTC; Ingestion) - **Buildkite**: [Hosted Agents: Job start latency for a small subset of customers](https://down.guide/buildkite/DWN-a35ccfbd18) (Degraded; lasted 0m; started 2026-03-06 08:54 UTC) - **Buildkite**: [Slow artifact uploads](https://down.guide/buildkite/DWN-270a84264d) (Degraded; lasted 12h 9m; started 2026-03-05 22:14 UTC; Agent API) - **Buildkite**: [Elevated ingestion latency for Test Engine](https://down.guide/buildkite/DWN-e57dae2900) (Degraded; lasted 8h 36m; started 2026-03-04 03:59 UTC; Ingestion) - **Buildkite**: [Latency issues](https://down.guide/buildkite/DWN-7c5f05dcff) (Partial outage; lasted 7h 33m; started 2026-03-03 21:51 UTC; Agent API, Job Queue) [Back to Buildkite](https://down.guide/buildkite) --- down.guide reads providers' official status pages every minute and adds its own evidence, always labeled. 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