In the time frame of 2 293 days since August 16, 2019, the report shows open.kattis.com passed 2 availability checks. Out of all tests conducted, open.kattis.com was up 2 times, the last time on August 16, 2019, when a code 200 has been returned. As of November 26, 2025, evaluations revealed no instances of open.kattis.com's inoperability. As of November 26, 2025, all received replies confirm that there have been no responses with an error status. Open.kattis.com's August 16, 2019, 0.301 seconds response contrasted the 0.300 seconds average response time.