There were 2 uptime checks conducted for who.in in the 1 992 days after June 5, 2019. Who.in responded with a code 200 on December 30, 2020, the latest of 2 times the site was operational based on total checks performed. According to tests, as of November 18, 2024, there were no incidents of inoperability for who.in. As of November 18, 2024, no error status code was noted in any of the responses that were received. Who.in showed a response time of 0.169 seconds on December 30, 2020, contrasting the average of 0.297 seconds.