1letnany.cz's availability checks had carried out over the past 1 154 days, starting on October 3, 2021. In 1 of the tests that were conducted, letnany.cz returned a code 200 in response, the most recent uptime occurring on October 3, 2021. All testing of letnany.cz as of December 1, 2024, found no instances of inoperability. It was confirmed that, as of December 1, 2024, none of the replies that were received contained any errors. The response time noted for letnany.cz was 0.375 seconds on October 3, 2021, against a 0.375 seconds average.