The records show jump4.cz was tested for operability 4 times over the 542 day duration beginning May 29, 2023. Jump4.cz consistently has shown functionality 4 times, with the latest recorded uptime on September 3, 2024, resulting in a code 200. No instances of non-functionality were found for jump4.cz across all tests conducted as of November 21, 2024. Based on all responses received as of November 21, 2024, there haven't been any responses that contain an error. A response time of 1.216 seconds was recorded for jump4.cz on September 3, 2024, in contrast to the 0.823 seconds average response time.