4 tests were conducted on the operability of t-systems.de over the 1 167 days starting on October 31, 2021. Most recently on October 31, 2021, with a 200 status code, t-systems.de was accessible 1 times, out of every test performed. Tests carried out on t-systems.de showed that there were no instances of inactivity as of January 10, 2025. Out of 3 total responses with errors, the most current one was coded 403 on January 8, 2025. The data shows that on January 8, 2025, t-systems.de responded in 0.121 seconds, compared to the average of 0.131 seconds.