Availability checks of challengeair.org done over the past 2 114 days from February 16, 2019, reached 3. On January 23, 2021, challengeair.org was confirmed up for the 2 time from all assessments conducted, by a 200 status code. Tests carried out on challengeair.org showed that there were no instances of inactivity as of November 30, 2024. January 23, 2021, marked the latest occurrence, coded 403, out of the 1 error replies that included errors. On January 23, 2021, challengeair.org replied in 0.412 seconds and had an average response time of 0.889 seconds.