Is Slack down?
Slack is operating normally as of 22:39 UTC on July 29, 2026. 503Radar detected no elevated outage signals across 6 monitored service families. Last confirmed Slack outage: July 28, 2026 (16h 25m).
Slack is a platform & SaaS service on the 503Radar board. We watch Messaging, Calls / Huddles, Files, Notifications, Login / Connections and Apps / Integrations for outage signals — public crowd chatter, first-party visitor reports and Slack's official status feed, fused into one honest verdict that often surfaces ahead of the official record. How detection works →
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honest answersIs Slack down right now?
503Radar publishes a live Slack verdict at the top of this page, stamped in UTC and rewritten by the detection pipeline whenever the signals change — not a cached daily snapshot. We fuse crowd reports from public platforms with Slack's official status feed; when independent sources spike together we raise a signal, often before the official status page updates. A quiet radar means we have no evidence of a Slack outage — not a verified all-green.
How does 503Radar detect Slack outages?
We monitor public outage chatter across forums, social platforms and developer communities, first-party "seeing this too" reports from visitors, and the official Slack status page (slack-status.com). A statistical anomaly across two or more independent evidence classes becomes a Signal; an official acknowledgement upgrades it to Confirmed. The full pipeline is documented on our methodology page — no black boxes.
Why is Slack not working for me?
If 503Radar shows no elevated signals, the problem may be on your side: connectivity, DNS, a VPN or browser extension, or an account-specific issue. Try another network or device and check slack-status.com for maintenance notices. You can also file a report here — enough independent reports from different countries open a community watch on the board.
What Slack services does 503Radar track?
For Slack we watch outage signals across Messaging, Calls / Huddles, Files, Notifications, Login / Connections and Apps / Integrations. Coverage is signal-driven: we track what people actually report, plus everything Slack publishes on its official status feed.