1ciel.org's availability checks had carried out over the past 1 475 days, starting on September 1, 2021. Based on a 200 status response received on September 1, 2021, ciel.org was online 1 times out of total uptime checks. Based on inspections made as of September 16, 2025, there were no instances of inoperability on ciel.org. It is confirmed that, as of September 16, 2025, there were no error replies based on the replies that were received. Ciel.org's September 1, 2021, response of 3.801 seconds contrasted with its 3.801 seconds average response time.