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Vendor reliability

Vendor record

Slack

Vendor reports Operational

Checked

Independent checks and the vendor’s incident history. Use them to investigate a dependency; neither confirms what happened in your app.

Independent checks

Measured availability · 180 days

100.000%

4,887 of 4,887 conclusive checks returned the expected response. This tests the sampled endpoints, not every vendor product or your app.

How we measure availability
Check results
4,887 passed · 0 failed18 inconclusive, excluded
Sampled scope
apiNo region-specific labels
Earliest sample in this window
Response time · p95
427 msAt least 95% of successful checks took this long or less. Last 30 days.

Incident history

Reported by Slack. A record may close when a post disappears or our tracking period expires; this does not confirm vendor or application recovery.

33

incidents posted in 180 days

Median recorded duration: 2h 3m. From 33 incidents with vendor-supplied starts and recorded closure times.

All vendors’ incidents

Most recent records · all dates

  • Some customers experiencing blurry image previews and download issues

    Major

    Started

    Closed in record(8h 56m)

    Vendor incident record
  • Incident: Some customers experiencing blurry image previews and download issues

    Major

    Started

    Closed in record(15m)

  • Trouble loading Workspace-level Apps & Workflows settings page is returning blank pages

    Major

    Started

    Closed in record(2h 45m)

    Vendor incident record
  • Incident: Trouble loading Workspace-level Apps & Workflows settings page is returning blank pages

    Major

    Started

    Closed in record(15m)

  • Trouble Accessing Historical Messages With Custom Data Retention Policies Enabled

    Major

    Started

    Closed in record(30d)

    Vendor incident record
15 older records
  • Incident: Trouble Accessing Historical Messages With Custom Data Retention Policies Enabled

    Major

    Started

    Closed in record(8m)

  • Trouble Using Search Bar For Some Admins

    Major

    Started

    Closed in record(2h 17m)

    Vendor incident record
  • Incident: Trouble Using Search Bar For Some Admins

    Minor

    Started

    Closed in record(22m)

  • Feature Degradation Affecting the Receipt of Emails in Slack

    Major

    Started

    Closed in record(20h 57m)

    Vendor incident record
  • Issue sending messages to channels via certain workflows

    Major

    Started

    Closed in record(2h 27m)

    Vendor incident record
  • Receiving reminders in Slack issue

    Major

    Started

    Closed in record(1h 11m)

    Vendor incident record
  • Chat functionality unavailable on Slack Help page

    Major

    Started

    Closed in record(58m)

    Vendor incident record
  • Trouble loading SSO configuration settings for some workspace admins

    Major

    Started

    Closed in record(5h 42m)

    Vendor incident record
  • Trouble loading Slack and performing actions

    Major

    Started

    Closed in record(31m)

    Vendor incident record
  • Trouble submitting workflow forms with file attachments on Android.

    Major

    Started

    Closed in record(5d 1h)

    Vendor incident record
  • Child windows displaying content at half height

    Major

    Started

    Closed in record(1h 7m)

    Vendor incident record
  • Trouble with Gmail add-on Integration

    Major

    Started

    Closed in record(10h 3m)

    Vendor incident record
  • Trouble adding multiple users to channels

    Major

    Started

    Closed in record(5h)

    Vendor incident record
  • Some users unable to sign in

    Major

    Started

    Closed in record(40m)

    Vendor incident record
  • Administrators may experience errors in member management.

    Major

    Started

    Closed in record(1h 7m)

    Vendor incident record
More about the disclosure record

Share of each window with no impact declared by Slack. These incident-derived figures do not measure availability and do not establish SLA eligibility.

7d
100.000%
30d
50.701%
90d
76.582%
180d
88.104%
1y
94.133%

Fewer incidents in the last 30 days than 24% of 232 tracked services.

Your code, your dependencies

Put this vendor in context.

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Add Slack status to your page.

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Detail
Preview · SlackStatus only

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Iframe snippet
<iframe src="https://checkupstream.com/embed/slack?layout=card" style="border:0;width:320px;max-width:100%;height:96px" loading="lazy" title="Slack status badge"></iframe>

Frequently Asked Questions

Is Slack currently down?

Slack's latest recorded status is Operational. Check the timestamp and linked source at the top of this page. A vendor status report does not establish whether your application was affected.

When did Slack last have an outage?

The most recent closed incident record began 38 days ago and spans 30 days. The vendor reported a partial outage. Closure may reflect a disappeared post or an expired tracking period; it does not confirm vendor or application recovery. Check the dated history and source links.

What's Slack's 30-day uptime?

Slack's 30-day measured availability is 100.000%. This is the share of conclusive independent checks that returned the expected response. It covers the sampled endpoints and regions, not every vendor product or your application.

How do I monitor Slack in production?

Create your account, connect GitHub or GitLab and choose a public or private repository. Review the vendor matches and your alert settings. Available notification channels and history depend on your plan.

How does CheckUpstream track Slack?

This record separates vendor-reported incidents from independent checks. Sources and coverage vary by vendor: review the linked source, check time and measurement scope. Neither kind of evidence establishes SLA credit eligibility.