The total availability checks of contra-costa.lib.ca.us performed over 854 days starting September 25, 2022, is 1. As of January 26, 2025, every availability test that was carried out indicated that contra-costa.lib.ca.us was either unavailable or having issues. For 1 evaluations out of the total, or 100.00%, contra-costa.lib.ca.us was unavailable, with September 25, 2022, being the most current instance. As of January 26, 2025, there have been no reports of error statuses in the responses that have been received. — seconds was contra-costa.lib.ca.us's recorded response time on September 25, 2022, contrasting the 0.001 seconds average.