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Outage tracker

Buildkite: the full evidence record

The last 24 hours in detail, 15 days of measured availability, a 12-month summary, our own incident log, Buildkite's declared record, and how the two compare.

← Back to Buildkite's live status

We started measuring Buildkite on August 22, 2026, which is 15 days ago. Everything below covers that period, not the full 90 days a longer-tracked service would show.

The last 24 hours

What happened most recently, on one time axis: our own probe readings by surface, how many people reported a problem, and what Buildkite's own status page declared. Below it, any public chatter we saw about Buildkite and the extra probe it triggered.

The last 24 hours on one axis: what our probes read for each surface we check, how many people reported a problem, and what Buildkite's own status page declared. Three records side by side; none of them changes another.

Our probes, web
Our probes, api (primary)
Unverified user reportsNo reports about Buildkite in the last 24 hours, which is not evidence that nothing is wrong.
Buildkite's status page
  1. Hosted Agents - Increased latency and error rates: minor incident, from before this window to 02:45 UTC.

Each probe cell is the worst reading across every region in that quarter hour: one region that did not answer colours the cell, never an average. An amber cell is a reading that answered, but at three times or more its 7-day median for three checks running: slow is not down, and we say which. A filtered reading stays neutral, because a refused probe is not an outage. Report bars count unverified reports, not people we verified; they never change our reading. The status-page lane is Buildkite's own declaration, shown as they made it.

Third-party chatter, labeled

Public posts from the last hour that mention Buildkite next to an outage word (“down”, “outage”, “not working”). This is what other people said in public, collected by keyword: not something we measured, and not the user reports above. It never affects the verdict.

No matching public posts in the last hour from the sources we watch.

Availability by region

Availability is measured probes that succeeded, divided by every probe we attempted, per region. Not interpolated, not smoothed, and never computed for a region with zero recorded samples.

RegionAvailabilityProbes recorded
US-East100.00%1848
US-West100.00%1836
Europe100.00%1766
Asia-Pacific100.00%1563
US-Central100.00%176
Canada100.00%176
UK100.00%175
Southeast Asia100.00%145
Australia100.00%143
South America100.00%167

Monthly summary

Tracking Buildkite since Aug 22, 2026. In that time our probes detected no outage. Months before that date are not tracked and carry no figure.

MonthUptimeOutagesDowntime
Oct 2025not tracked
Nov 2025not tracked
Dec 2025not tracked
Jan 2026not tracked
Feb 2026not tracked
Mar 2026not tracked
Apr 2026not tracked
May 2026not tracked
Jun 2026not tracked
Jul 2026not tracked
Aug 2026 from Aug 22, 2026100%00 min
Sep 2026100%00 min

Uptime here is the share of each month in which our probes had no outage open for Buildkite: two consecutive failed readings from a region opens one, the first clean reading closes it. Any detected outage counts, including one seen from a single region, and an outage that crosses midnight on the first of a month is counted in both months with its minutes split. User reports, public posts and Buildkite's own status page contribute nothing to these figures.

Our incident log

Every outage our own probes detected for Buildkite in the last 90 days, or since we started measuring it if that is more recent. This list is probe-only: Buildkite's own declared incidents appear further down this page in their own attributed section, never merged with what we measured here. User reports live on the live page, in their own labeled block.

No outages detected for Buildkite since we started measuring it on August 22, 2026. We show nothing from before that date.

Their declared record

Buildkite's own incident history, taken from their public status feed. This is their account of what happened, not our measurement, and it never changes the incident log above or the other way around.

Hosted Agents - Increased latency and error ratesMinor incident
Sep 4, 2026, 1:42 AM UTC to Sep 4, 2026, 2:39 AM UTC (57 min)resolved
their latest update (Sep 4, 2026, 2:39 AM UTC): Jobs running on Hosted Agents are now being dispatched promptly.
Increased latency and error ratesOngoing, all systems operational
Sep 4, 2026, 1:40 AM UTC, open for 1d 0h so farinvestigating
their latest update (Sep 4, 2026, 1:40 AM UTC): We're seeing increased latency and error rates for a subset of our customers. We're currently investigating and will provide status updates as they become available.
Scheduling delay for hosted agentsMinor incident
Sep 3, 2026, 6:00 AM UTC to Sep 3, 2026, 7:06 AM UTC (1h 6m)resolved
their latest update (Sep 3, 2026, 7:06 AM UTC): Jobs running on Hosted Agents are now being dispatched promptly.
Delays in Hosted Agents job dispatchPartial outage
Sep 2, 2026, 2:45 PM UTC to Sep 2, 2026, 3:51 PM UTC (1h 5m)resolved
their latest update (Sep 2, 2026, 3:51 PM UTC): Job dispatch for Hosted Agents is no longer experiencing delays.
Delivery issues with email notificationsMinor incident
Sep 1, 2026, 3:32 PM UTC to Sep 1, 2026, 4:52 PM UTC (1h 20m)resolved
their latest update (Sep 1, 2026, 4:52 PM UTC): Our outbound email queue has finished processing all previously failed deliveries. Email notifications are processing successfully.
Test Engine ingestion delayed, catching upMinor incident
Aug 27, 2026, 10:56 AM UTC to Aug 27, 2026, 11:47 AM UTC (51 min)resolved
their latest update (Aug 27, 2026, 11:47 AM UTC): Processing of uploaded test execution data has caught up and is back to normal.
Issues identified with buildkite-agent registrationMinor incident
Aug 26, 2026, 1:42 AM UTC to Aug 26, 2026, 3:13 AM UTC (1h 31m)resolved
their latest update (Aug 26, 2026, 3:13 AM UTC): Mitigation strategies worked as expected and now agent registration is back to normal. All systems are stable now.
Buildkite service disruptionPartial outage
Aug 25, 2026, 10:55 PM UTC to Aug 26, 2026, 12:18 AM UTC (1h 23m)postmortem published
their latest update (Aug 27, 2026, 11:53 PM UTC): ## Service Impact Customers experienced a site-wide disruption affecting the Buildkite web interface, REST API, Agent API, job queue, and notifications. The disruption began at 22:47 UTC and continued until 23:16 UTC. During this period, all customers were unable to create new …
Unexpected agent disconnection for some customersMinor incident
Aug 25, 2026, 6:41 AM UTC to Aug 25, 2026, 8:16 AM UTC (1h 35m)resolved
their latest update (Aug 25, 2026, 8:16 AM UTC): This incident has been resolved.
Buildkite service disruptionMinor incident
Aug 17, 2026, 12:46 AM UTC to Aug 17, 2026, 2:43 AM UTC (1h 57m)resolved
their latest update (Aug 17, 2026, 2:43 AM UTC): This incident has been resolved.

Showing the 10 most recent of 59 incidents Buildkite has declared in the history we hold.

These entries are Buildkite's own declarations, taken from their public status feed, shown separately from the outages we detected ourselves. Their page publishes what they choose to publish: an incident missing here means they did not declare one, not that nothing happened, and an incident here is their account, not our measurement. Neither record ever changes the other.

The scorecard

How Buildkite's status page compared with what we measured, for every outage above that falls inside the window we have been capturing their claims.

We started recording Buildkite's own status page on August 22, 2026, 13 days ago. This comparison covers that period only, we do not reconstruct what they said before it, and we compare only inside outages we measured ourselves.

We have not measured an outage for Buildkite since we started recording their status page, so there is nothing to compare. That is a short measurement window, not a track record.

Buildkite decides what their status page covers, and it may report per component while our check reaches one surface from ten regions. We state what each side measured and leave the conclusion to you. If Buildkite believes a figure here is wrong, we publish corrections as prominently as the original.

Full detail on what a probe does and does not prove is in the methodology page.