At4.net's availability has been checked 3 times over the past 1 314 days, starting from July 3, 2021. In response, on December 3, 2021, at4.net, which has been operational for 3 times during all conducted checks, returned a code 200. At4.net experienced zero downtime as of February 6, 2025, according to the checks. No errors in any responses were reported as of February 6, 2025, based on the received replies. Recorded on December 3, 2021, was a 0.340 seconds response time for at4.net, averaging 0.368 seconds.