15 tests of alef.nl's functioning were conducted during the 1 967 day period starting on July 15, 2019. Throughout the range of checks conducted, alef.nl was reachable 15 times, with the most recent one receiving a 200 code on November 19, 2023. There were no offline periods for alef.nl as of December 2, 2024, according to all inspection results. Based on the received replies, it has been confirmed that there were no error responses as of December 2, 2024. Alef.nl replied in 3.632 seconds on November 19, 2023, against its average response time of 1.948 seconds.