The availability of ca.us has been tested 19 times between February 6, 2019, and the present, a span of 2 226 days. Based on the tests conducted as of March 13, 2025, ca.us was either down or experiencing difficulties. With December 11, 2024, being the most recent occurrence, ca.us experienced 19 downtimes out of all checks, or 100.00% of the total. The responses that had been received as of March 13, 2025, showed that no response had an error status. Against an average of 0.001 seconds, — seconds was ca.us's response time on December 11, 2024.