In the timespan of 1 260 days starting June 19, 2021, ders.org was inspected for operability 11 times. Ders.org was found to be active in 2 instances out of all the checks conducted, the latest assessment on July 4, 2021, showed a 200 status. As of November 30, 2024, evaluations revealed ders.org encountered no events of unavailability. On September 19, 2022, code 401 was recorded as the most recent error in 9 responses with errors. Data indicates 0.094 seconds response time for ders.org on September 19, 2022, against 0.185 seconds average.