Slack.
Last Resolved Incident
Earlier today · lasted 3h 28m · Major
7d Uptime
95.182%
30d Uptime
98.876%
90d Uptime
99.625%
180d Uptime
99.813%
1y Uptime
99.908%
Daily Uptime · 1 year
361/365 clean days
Recent Incidents
3
Community Reports (7d)
0
Official status page: https://slack-status.com (opens in new tab)
Recent Incidents
Users May Not Receive Notifications on Slack Thread Replies
MajorSlack Threads Not Loading
MajorCustom status not expiring
MajorFrequently Asked Questions
Is Slack currently down?
Slack is currently Operational. CheckUpstream tracks Slack in real-time across the official status page, RSS / Atom feeds, and community telemetry — refresh this page for the latest reading.
When did Slack last have an outage?
Slack's last resolved incident started earlier today and lasted 3h 28m (a partial outage).
What's Slack's 30-day uptime?
Slack's 30-day customer-perceived uptime is 99.908%. The figure is weighted (full-outage = 1.0, degraded = 0.3) so component blips don't collapse the score the way a raw incident-count would.
How do I monitor Slack in production?
Sign up to CheckUpstream and add Slack to a watchlist. We send incident alerts via Slack, email, webhook, or PagerDuty within seconds of detection — covering both the official status page and community signals (HN, Reddit, Bluesky, Cloudflare Radar).
How does CheckUpstream track Slack?
We poll Slack's official status page on a 1-5 minute cadence, parse its RSS / Atom feed as a fallback, ingest community signals from social platforms, and aggregate per-org SDK telemetry. Multiple sources reduce false positives versus any single feed alone.
Looking for the live "is Slack down" view? Check the Slack Status page.