January 15, 2021, started the 1 407 day period in which isubookstore.com had 4 availability tests performed. Of every analysis performed, isubookstore.com was functional 4 times, latest on September 30, 2022, returning a 200 status code. As of November 23, 2024, assessments carried out on isubookstore.com indicated that there were no instances of inactivity. No error status codes were returned in any of the obtained responses as of November 23, 2024. The data from September 30, 2022, reveals that isubookstore.com responded in 1.658 seconds, in contrast to the 3.072 seconds average response time.