Since September 26, 2022, the operability of zeller-lab.com has been checked 3 times over the past 791 days. From the entirety of checks conducted, zeller-lab.com was operable 3 times, with the most recent occurrence on November 20, 2024, resulting in a code 200 status. No downtime incidents were reported for zeller-lab.com during inspections conducted as of November 25, 2024. Based on all replies received as of November 25, 2024, there have been no errors found in any responses. With 1.649 seconds as the average, zeller-lab.com responded in 0.882 seconds on November 20, 2024.