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
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Jan 5, 2026

No incidents reported today.

Jan 4, 2026

No incidents reported.

Jan 3, 2026
Database maintenance
Completed - The scheduled maintenance has been completed.
Jan 3, 22:00 CET
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jan 3, 19:00 CET
Scheduled - We will perform database maintenance. There will be one longer outage (perhaps 30 minutes) and several shorter ones.
Jan 3, 15:20 CET
Jan 2, 2026

No incidents reported.

Jan 1, 2026

No incidents reported.

Dec 31, 2025

No incidents reported.

Dec 30, 2025
Database maintenance
Completed - The scheduled maintenance has been completed.
Dec 30, 22:00 CET
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Dec 30, 19:00 CET
Scheduled - Scheduled database maintenance. We expect some short periods of service outage.
Dec 30, 18:56 CET
Dec 29, 2025

No incidents reported.

Dec 28, 2025

No incidents reported.

Dec 27, 2025
Database maintenance
Completed - The scheduled maintenance has been completed.
Dec 27, 23:00 CET
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Dec 27, 15:00 CET
Scheduled - Kattis will be performing scheduled database maintenance. During this maintenance there will be several periods of limited service, including a complete service outage for up to 60 minutes.
Dec 25, 23:02 CET
Dec 26, 2025

No incidents reported.

Dec 25, 2025

No incidents reported.

Dec 24, 2025

No incidents reported.

Dec 23, 2025

No incidents reported.

Dec 22, 2025

No incidents reported.

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