Opt-union.ru's functioning was analyzed 2 times within the 1 341 day time frame beginning March 18, 2021, as per records. The uptime history of opt-union.ru includes 2 successful instances, the latest being on March 18, 2021, returning a code 200. According to the assessments conducted as of November 18, 2024, opt-union.ru did not experience any downtime. As of November 18, 2024, every response that was received has been reported to be error-free. The response time of 0.699 seconds for opt-union.ru on March 18, 2021, differed from its 0.806 seconds average.