Starting on March 19, 2021, the operability of blockbuilder.org has been tested 4 times over the last 1 356 days. According to the tests performed, blockbuilder.org was accessible a total of 4 times, with the most recent uptime on September 8, 2022, returning a code 200. As of December 5, 2024, blockbuilder.org had no reported downtime incidents in tests conducted. Based on the replies received as of December 5, 2024, it has been confirmed that there are no responses with error status. Blockbuilder.org's September 8, 2022, response time of 0.165 seconds differed from its 0.559 seconds average response time.