Smooth sailing!

Nothing to report here. Slack is up and running normally.

Current Status by Service

No Issues

Maintenance

Incident

Notice

Outage

Login/SSO

No issues

Connections

No issues

Messaging

No issues

Link Previews

No issues

Posts/Files

No issues

Notifications

No issues

Calls

No issues

Search

No issues

Apps/Integrations

No issues

Workspace/Org Administration

No issues

Recent Incidents

Uptime in the past 30 days:

99.75%

How is uptime calculated?

Slack is a distributed platform and during any given incident it is rare for all Slack teams to be affected. For this reason, we report our uptime as an average derived from the number of affected users.

SEE HISTORY

November 16, 2017

Trouble connecting from South America

Things should be better now. Sorry for the blip, South America. If you see any further problems, please do get in touch.

November 16, 2017

Investigating connectivity issues

And with that we think we're in the clear. Please try to refresh Slack if you haven't reconnected already, and please do let us know if you see any further problems.

Thank you for sticking with us. At the risk of boring you to tears, please accept our sincere apologies once more.

November 15, 2017

ISP-specific connectivity troubles (Europe)

We're no longer hearing new reports of this issue so we're closing this out. If you're still seeing issues connecting to Slack, please get in touch. Thanks, everybody.

November 14, 2017

Difficulty connecting affecting some users

We've released a fix for the issue that caused the connection trouble. We'll look into the problem to ensure we won't run into it again. Thanks for your kind patience during the blip.

November 6, 2017

Connection issues for some workspaces

Everything should be back to normal for all workspaces once again. Please let us know if you see any further trouble. We are very sorry for the disconnection time. We greatly appreciate your patience while we worked to see this through.

November 6, 2017

Connectivity issues for some workspaces

We're hearing reports that suggest the ISP issues are resolved. Thanks for your patience while we checked it out.

October 31, 2017

Connectivity Issues

Thank you for your patience. Everything is back up and running and we wanted to give you a summary of what happened.

On October 31, 2017 (yesterday) at 3:50pm PST, Slack went down for all users. This was the result of a routine internal deployment of software to our servers which unfortunately caused all of our customers to become disconnected, and left them unable to reconnect.

Once we identified the problem, we worked to scale up new hardware to process the bulk of the requests. To avoid further overloading the system when folks came back online, we used standard rate limits to allow for gradual reconnection. By 6:00pm PST, all customers had reconnected to Slack once again.

We understand that people depend on Slack to get their jobs done, and we are deeply sorry for the disruption this caused. Thank you again for your patience.

October 24, 2017

Connectivity issues for users on older browser versions of Safari

We believe we've found the culprit and made the necessary tweaks. All users on older Safari browser versions should be able to connect to Slack once more. We apologize for any disruption to your day.

October 24, 2017

Connectivity for some Organizations

All clear. The affected Enterprise Organisations should now be able to connect, but if not, please do let us know. Again, we're terribly sorry for the troubles this caused.

October 23 - October 24, 2017

Connectivity trouble affecting some workspaces

We believe that users should be able to connect to Slack once more, but do let us know if not. Your patience with us does not go unnoticed. Thank you.

October 23, 2017

Problems with SMS 2FA login

Things are looking better on this end and you should be able to log in successfully now. Thank you kindly for hanging tight.

October 20, 2017

Events API Delays

The delays with the Events API should now be fully resolved. Integrations and apps should all be back to normal! We're really sorry for the interruption to your work day. Thanks again for sticking with us!