2 tests were conducted on the operability of open.cz over the 1 238 days starting on September 17, 2021. In 2 instances of operability across all conducted checks, open.cz's most recent uptime on September 17, 2021, returned a code 200. Checks that were done as of February 7, 2025, show that open.cz was never unavailable. It has been noted that as of February 7, 2025, there were no error responses based on the responses that were received. Open.cz has an average response time of 2.765 seconds, and on September 17, 2021, it was 3.245 seconds.