2 uptime checks were conducted for mark4os.com within the 1 473 day period beginning November 16, 2020. Availability tests determined mark4os.com was functional 2 times, the last check on September 30, 2021, resulted in a 200 status code. No downtimes were noted for mark4os.com in any inspections performed as of November 29, 2024. The error statuses in the received responses have not been reported as of November 29, 2024. On September 30, 2021, mark4os.com's response time was recorded as 0.470 seconds, with an average of 0.349 seconds.