In the time frame of 2 135 days since January 28, 2019, the report shows cls.at passed 4 availability checks. Cls.at was accessible 4 times from the total tests conducted, and the most recent uptime on September 19, 2021, returned a code 200. Based on tests, there have been no reports of cls.at becoming inoperable as of December 2, 2024. As of December 2, 2024, it was noted that every response that was received was error-free. Recorded on September 19, 2021, was cls.at's response time of 0.306 seconds, against an average of 0.412 seconds.