From November 27, 2020, through the following 1 525 days, 1 availability checks of opera-erratica.org were conducted. Through 1 operational instances across all conducted checks, opera-erratica.org affirmed its latest uptime on November 27, 2020, by returning a code 200. Offline periods were not observed for opera-erratica.org based on all checks made as of January 31, 2025. Based on the replies received as of January 31, 2025, it has been confirmed that there are no responses with error status. Opera-erratica.org replied in 0.183 seconds on November 27, 2020, with an average response time of 0.183 seconds.