Over the 1 242 day period starting on June 25, 2021, the number of availability checks of openintro.org reached 3. Throughout all tests, openintro.org was reachable 3 times, on May 30, 2022, the most recent successful ping returned a code 200. As of November 18, 2024, no downtimes were recorded for openintro.org across all inspections conducted. All of the responses confirm that there have been no error statuses found as of November 18, 2024. The data shows that on May 30, 2022, openintro.org responded in 1.776 seconds, compared to the average of 1.683 seconds.