From June 12, 2021, through the following 1 256 days, 20 availability checks of substack.com were conducted. Operational 19 times during the total tests, substack.com's most recent uptime on September 3, 2024, returned a code 200. The tests carried out as of November 20, 2024, revealed no incidents of inoperability for substack.com. On March 15, 2024, an error response code of 502 was noted as the latest out of 1 responses with errors. Comparison data from September 3, 2024, indicates that substack.com responded in 0.392 seconds, contrasting the 0.743 seconds average.