Over the past 723 days starting December 2, 2022, 4book.info had 2 availability checks done. In 2 cases of operability throughout the tests, 4book.info's latest uptime on February 8, 2023, returned a 200 code. The checks carried out as of November 25, 2024, did not identify any downtime issues related to 4book.info. The responses received confirm that, as of November 25, 2024, no error status was detected. On February 8, 2023, 4book.info's response time differed from the average, being 0.284 seconds compared to 0.286 seconds.