Data shows dsp-book.narod.ru was tested for operability 6 times within the 809 day time frame starting September 9, 2022. 6 times dsp-book.narod.ru was proven operational from checks performed, the latest instance being November 12, 2024, when a 200 status code was received. No instances of non-functionality were found for dsp-book.narod.ru across all tests conducted as of November 26, 2024. As of November 26, 2024, it is confirmed that none of the received responses contain error statuses. For dsp-book.narod.ru, the November 12, 2024, response time was 0.306 seconds, contrasted by a 0.293 seconds average.