2 tests of derive.at's functioning were conducted during the 1 252 day period starting on June 15, 2021. Out of all tests, derive.at was operable 2 times, the last recorded uptime on September 18, 2021, returned a http status code 200. As of November 19, 2024, all evaluations indicated that derive.at had no periods of inoperability. As of November 19, 2024, the error statuses in the received responses have not been reported. Derive.at averaged a response time of 0.162 seconds, while on September 18, 2021, it replied in 0.159 seconds.