5 functioning checks were performed for grades.io during the 1 403 day time frame beginning March 9, 2021. In its most recent reported uptime on August 29, 2022, grades.io, which has been active 4 times out of all the checks, responded with a code 200. As of January 11, 2025, no instances of grades.io being down had occurred during the inspections that were conducted. Code 404 on August 23, 2021, was the most current error-containing response out of the 1 received. The latest data indicates that grades.io responded in 0.746 seconds on August 29, 2022, in contrast to the average of 0.447 seconds.