The operability of cool.st has been tested 4 times over the course of the 1 352 days that followed March 16, 2021. The checks conducted revealed cool.st worked 4 times overall, as evidenced by the 200 status on June 22, 2021. As of November 27, 2024, all checks of cool.st confirmed that there were no instances of inaccessibility. As of November 27, 2024, each response received was confirmed to be free of error status codes. Against an average of 1.533 seconds, cool.st replied in 0.774 seconds on June 22, 2021.