Starting on August 28, 2021, and lasting for 1 190 days, 1 times, derner.adelphi.edu was inspected for availability. From whole tests made, derner.adelphi.edu was up 1 times, most recent uptime recorded August 28, 2021, replying with a code 200. No issues related to downtime were found throughout the assessments of derner.adelphi.edu as of November 30, 2024. Records indicate that as of November 30, 2024, no error status codes had been found in any of the received responses. According to records, on August 28, 2021, derner.adelphi.edu responded in 4.532 seconds, as opposed to an average of 4.532 seconds.