A total of 7 availability checks of challenge.bfi.org were performed during the 1 289 day period starting from July 17, 2021. Challenge.bfi.org, with 4 instances of operability out of all conducted checks, reported its last uptime on September 18, 2021, confirmed by a code 200 response. As of January 26, 2025, challenge.bfi.org revealed no offline periods throughout all inspections. The most recent from the 3 responses with errors was error code 404, observed on December 28, 2024. The response time for challenge.bfi.org on December 28, 2024, was recorded as 0.144 seconds compared to the average of 0.212 seconds.