Within the past 1 199 day period starting August 10, 2021, the operability of nullrefer.ir was checked 4 times. 4 instances of nullrefer.ir uptime, including the code 200 result on November 20, 2024, were noted from the tests conducted. During the checks conducted, there were no instances of nullrefer.ir being unavailable as of November 21, 2024. No reports of error statuses in the responses received have been made as of November 21, 2024. Nullrefer.ir's November 20, 2024, response time was 0.222 seconds, with an average response time of 0.894 seconds.