In the time frame of 1 191 days beginning August 30, 2022, instu.ru's availability was checked 20 times. 16 times instu.ru was available out of the total checks performed, with the most recent uptime on December 3, 2025, returning a code 200. During 1 times out of the tests, or 5.00% of the total, instu.ru was unavailable, the most recent downtime occurred on December 30, 2022. The last reported error, code 444, occurred on March 13, 2025, as part of the total 3 responses with errors. On December 3, 2025, for instu.ru recorded a response time of 0.158 seconds, with an average of 0.453 seconds.