Checks of istem.eu's availability have been completed 4 times since June 18, 2021, a span of 1 254 days. The tests carried out revealed 4 instances of istem.eu uptime, including a 200 status code result on September 19, 2022. Istem.eu was found to have no offline times during the inspections conducted as of November 24, 2024. No error statuses were reported in any responses received as of November 24, 2024, according to all replies. A 0.997 seconds response from istem.eu was recorded on September 19, 2022, compared to its 1.199 seconds average.