The records show zero-day.cz was tested for operability 29 times over the 1 467 day duration beginning November 28, 2020. The website zero-day.cz returned a 200 ok response in 29 out of all tests conducted, proving operational on the last check on March 21, 2023. During inspections, as of December 5, 2024, no instances of zero-day.cz being unavailable were found. As of December 5, 2024, it's confirmed that none of the received responses contain error statuses. On March 21, 2023, a 0.415 seconds response time contrasted zero-day.cz's 0.512 seconds average.