From March 31, 2024, through the next 234 days, 2 availability tests were completed for stheart.com. Throughout the assessments, stheart.com was accessible 2 times, most recently on March 31, 2024, responding with a 200 status code. Evaluations as of November 20, 2024, confirmed that stheart.com had no periods of inactivity. Based on all the replies, as of November 20, 2024, no error status code has been returned. Stheart.com averaged a response time of 0.151 seconds, while on March 31, 2024, it replied in 0.141 seconds.