Is Slack Down?

No — Slack is up

Reachable from all 17 checked regions

Average response time: 518ms

Last checked 28 minutes ago · checks run every 30 minutes

Official status page: https://slack-status.com

Slack uptime

100%

Last 7 days

100%

Last 30 days

100%

Last 90 days

547ms

Avg response, 30 days

Measured from multiple regions every 30 minutes. Percentages count only checks that returned an availability answer — 80 days measured so far. A dash means that window does not yet hold enough measured days to publish a figure.

30-day history

80-day clean streak

Sep 14 Today

No downtime Partial Downtime Not measurable No data

Reachability by region

Each region runs its own request from a different part of the world. A service can be up for one continent and down for another, which is usually the first sign of a routing or CDN problem.

ams

586ms

DNS 12ms TCP 9ms TLS 11ms TTFB 307ms

arn

828ms

DNS 28ms TCP 24ms TLS 26ms TTFB 374ms

cdg

600ms

DNS 29ms TCP 10ms TLS 13ms TTFB 321ms

dfw

317ms

DNS 48ms TCP 27ms TLS 30ms TTFB 233ms

ewr

183ms

DNS 67ms TCP 7ms TLS 10ms TTFB 161ms

fra

745ms

DNS 21ms TCP 3ms TLS 5ms TTFB 282ms

gru

215ms

DNS 14ms TCP 4ms TLS 8ms TTFB 202ms

iad

91ms

DNS 5ms TCP 3ms TLS 5ms TTFB 82ms

jnb

1368ms

DNS 72ms TCP 22ms TLS 25ms TTFB 667ms

lax

359ms

DNS 18ms TCP 31ms TLS 34ms TTFB 267ms

lhr

648ms

DNS 0ms TCP 2ms TLS 5ms TTFB 413ms

nrt

872ms

DNS 35ms TCP 3ms TLS 5ms TTFB 268ms

ord

141ms

DNS 9ms TCP 9ms TLS 12ms TTFB 113ms

sin

721ms

DNS 0ms TCP 1ms TLS 5ms TTFB 715ms

sjc

321ms

DNS 43ms TCP 22ms TLS 24ms TTFB 255ms

syd

623ms

DNS 0ms TCP 1ms TLS 5ms TTFB 617ms

yyz

197ms

DNS 6ms TCP 16ms TLS 19ms TTFB 147ms

What Slack does

Slack is a business communication platform used by millions of teams for messaging, file sharing, and collaboration. It organizes conversations into channels and supports direct messages, voice calls, and integrations with thousands of third-party tools. Slack is owned by Salesforce and is a core productivity tool for remote and hybrid teams.

What an outage looks like

During a Slack outage, messages may fail to send or appear delayed by minutes or hours. The desktop and mobile apps may show connection errors or a perpetual loading screen. File uploads stall, notifications stop arriving, and integrations with tools like Jira, GitHub, and PagerDuty stop delivering alerts.

What to do about it

Check status.slack.com for official incident reports. While Slack is down, fall back to email or an alternative communication tool for urgent matters. Slack messages sent during outages are typically delivered once service is restored, so your messages should not be permanently lost.

Is it down for everyone, or just you?

If this page says Slack is up but it is not loading for you, the problem is between you and them. Run a check against any URL from up to 17 cities across three regions to find out where it breaks.

Test it yourself

Related services

Slack outage FAQ

Will my messages be lost if Slack goes down while I'm typing?

Messages that you've already sent but haven't been delivered will be queued and delivered once Slack recovers. However, if you're mid-typing and the app crashes, the unsent message in the compose box may be lost. Slack's draft feature preserves most unsent messages, but it's not guaranteed during outages.

How do I know if Slack is down or it's just my connection?

First, check your internet connection by loading another website. Then visit status.slack.com from your browser. If you can reach other sites but not Slack, and the status page confirms an incident, Slack is down. The Slack app will also display a yellow or red connection banner at the top of the window.

Do Slack integrations work during an outage?

No, integrations that rely on Slack's API will fail during an outage. This includes bot messages, webhook deliveries, and notifications from tools like GitHub, PagerDuty, and Jira. Most integration platforms queue failed deliveries and retry them after Slack recovers.

What should my team use when Slack is down?

Have a backup communication plan before outages happen. Email is the most reliable fallback. Some teams keep a secondary tool like Microsoft Teams or Discord available. For incident response, phone calls or SMS via tools like PagerDuty ensure critical alerts are never missed.

Does Slack have an uptime SLA?

Slack offers a 99.99% uptime SLA for Enterprise Grid customers, with service credits if that threshold isn't met. Business+ and Pro plans do not have a formal SLA. Slack's historical uptime is generally very high, with most incidents being brief and partial.

How we measure this

We request Slack's public endpoint every 30 minutes from Fly.io regions across six continents — the most recent check ran from 17 of them.
A region counts as down only when it gets no usable HTTP response. A 403 or 429 means the origin answered and refused us, which we report as blocked, never as an outage.
A single failing region is treated as probe noise. We only change the verdict when two consecutive cycles agree.
Response times average only the regions that actually served the page, so a timeout never inflates the number.
Where Slack publishes an official status feed we read it too. An all-clear from the vendor can soften an unconfirmed degradation; a vendor-declared outage only worsens our verdict when our own checks corroborate it.

Get alerted when Slack goes down

This page refreshes every 30 minutes. Your own monitors run as often as every 30 seconds, from up to 17 cities across three regions, and tell you the moment something breaks.

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