1 uptime tests for hmhintervention.com were performed during the 1 416 day period starting on January 12, 2021, according to records. Throughout the whole testing period, hmhintervention.com was up 1 times, the most recent uptime was on January 12, 2021, when a code 200 was returned. During hmhintervention.com checks as of November 28, 2024, no downtime occurrences were reported. As of November 28, 2024, no reply had an error status out of all the replies that were received. Hmhintervention.com responded on January 12, 2021, in 1.355 seconds, compared to the average response time of 1.355 seconds.