In the time period of 1 448 days starting December 9, 2020, substance.tv was checked for accessibility 7 times. Substance.tv consistently has shown functionality 4 times, with the latest recorded uptime on July 23, 2023, resulting in a code 200. All testing performed of substance.tv as of November 27, 2024, found zero instances of inoperability. Out of 3 error-containing responses, the one on June 28, 2024, carried the most recent error code, 403. On June 28, 2024, substance.tv's response time of 0.222 seconds differed from its average of 2.146 seconds.