The operability of qr.cz was checked 4 times during a period of 1 950 days, beginning on July 27, 2019. With the last time on July 27, 2019, when a code 200 was returned, qr.cz was up 4 times out of all the checks conducted. As of November 27, 2024, testing indicates that there had been no instances of inoperability for qr.cz. No error statuses were reported in any responses received as of November 27, 2024, according to all replies. Averaging 0.262 seconds in response time, qr.cz replied in 0.195 seconds on July 27, 2019.