It has been 1 388 days since June 13, 2021, and during that time, 3 checks was made for mastermindbooks.com's availability. The website mastermindbooks.com was confirmed functional 3 times from total checks performed, latest proven on June 21, 2021, by a 200 status response. Inspections carried out as of April 2, 2025, showed mastermindbooks.com faced no occurrences of inoperability. The confirmation that no responses have error statuses is provided by replies received as of April 2, 2025. Mastermindbooks.com's 2.133 seconds response time on June 21, 2021, contrasted its average of 2.033 seconds.