6onlinebooks.library.upenn.edu's availability checks had carried out over the past 368 days, starting on December 20, 2023. After conducting all tests, onlinebooks.library.upenn.edu was online 6 times, with the most recent 200 status code occurring on July 29, 2024. As of December 23, 2024, no downtimes were recorded for onlinebooks.library.upenn.edu across all inspections conducted. Among the replies received as of December 23, 2024, there were no responses with error status. Records indicate a 0.182 seconds onlinebooks.library.upenn.edu response time on July 29, 2024, compared to 0.264 seconds on average.