Siera.cz's availability has been checked 4 times over the past 1 164 days, starting from September 17, 2022. During the entire set of tests, siera.cz was accessible 4 times, most recently on October 26, 2025, responding with a 200 status code. No downtime incidents were reported for siera.cz during inspections conducted as of November 25, 2025. As of November 25, 2025, no recorded response had an error status out of all the replies that were received. Records indicate 0.360 seconds as the October 26, 2025, siera.cz response against the 0.815 seconds average.