All Systems Operational

Uptime over the past 90 days. View historical uptime.
Kattis Services Operational
90 days ago
100.0 % uptime
Today
Web Operational
90 days ago
100.0 % uptime
Today
Backend Operational
90 days ago
100.0 % 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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Jul 10, 2026
Database maintenance
Completed - The scheduled maintenance has been completed.
Jul 10, 11:31 CEST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 10, 11:00 CEST
Update - We will be undergoing scheduled maintenance during this time.
Jul 10, 11:00 CEST
Scheduled - Kattis will perform database maintenance. There may be delays in judging and service interruptions during this time.
Jul 10, 10:46 CEST
Jul 9, 2026

No incidents reported.

Jul 8, 2026

No incidents reported.

Jul 7, 2026

No incidents reported.

Jul 6, 2026

No incidents reported.

Jul 5, 2026

No incidents reported.

Jul 4, 2026

No incidents reported.

Jul 3, 2026

No incidents reported.

Jul 2, 2026

No incidents reported.

Jul 1, 2026

No incidents reported.

Jun 30, 2026

No incidents reported.

Jun 29, 2026

No incidents reported.

Jun 28, 2026

No incidents reported.

Jun 27, 2026

No incidents reported.

Jun 26, 2026

No incidents reported.

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