2 tests were conducted on the operability of isis.de over the 636 days starting on February 28, 2023. Operational in 2 instances throughout checks, isis.de's last uptime on March 1, 2024, responded with a code 200. No occurrences of isis.de being down were detected during the inspections conducted as of November 25, 2024. As of November 25, 2024, based on the replies received, no errors had been reported in any of the responses. Contrasting with the average response time of 0.298 seconds, isis.de's response on March 1, 2024, was 0.043 seconds.