Starting on May 20, 2021, there have been 3 checks of open-books.org's accessibility in the last 1 302 days. Out of all tests attempted, open-books.org was working 3 times, with the last instance on December 31, 2021, replying with a 200 status code. Inspections carried out as of December 12, 2024, revealed no incidents of inaccessibility for open-books.org. As of December 12, 2024, there have been no error status codes reported, according to all the responses received. Noted on December 31, 2021, was open-books.org's 0.912 seconds response time, against a 1.136 seconds average.