All Systems Operational

Uptime over the past 90 days. View historical uptime.
Kattis Education Operational
90 days ago
99.99 % uptime
Today
Web ? Operational
90 days ago
99.99 % uptime
Today
Kattis Recruiting Operational
90 days ago
99.99 % uptime
Today
Web ? Operational
90 days ago
99.99 % uptime
Today
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

No incidents or maintenance related to this downtime.

System Metrics Month Week Day
Judge queue ?
Fetching
IMC Queue
Fetching
Nov 4, 2025

No incidents reported today.

Nov 3, 2025

No incidents reported.

Nov 2, 2025

No incidents reported.

Nov 1, 2025

No incidents reported.

Oct 31, 2025

No incidents reported.

Oct 30, 2025

No incidents reported.

Oct 29, 2025

No incidents reported.

Oct 28, 2025
Backend stalled
Resolved - An out of disk situation caused our backend to stall.
Oct 28, 10:05 CET
Update - We are continuing to monitor for any further issues.
Oct 28, 09:29 CET
Monitoring - A fix has been implemented and we are monitoring the results.
Oct 28, 09:29 CET
Investigating - Something is stalling our backend. We are currently investigating this.
Oct 28, 09:27 CET
Oct 27, 2025

No incidents reported.

Oct 26, 2025

No incidents reported.

Oct 25, 2025

No incidents reported.

Oct 24, 2025

No incidents reported.

Oct 23, 2025

No incidents reported.

Oct 22, 2025

No incidents reported.

Oct 21, 2025

No incidents reported.

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