Uptime testing reached 3 checks over the 1 413 days from January 11, 2021, for webportal.cmsenergy.com as per the data. In 3 instances of operability from all checks conducted, webportal.cmsenergy.com's last recorded uptime on November 4, 2021, returned a code 200. Inspections made as of November 24, 2024, revealed no instances of inoperability on webportal.cmsenergy.com. According to received replies, as of November 24, 2024, all responses have been noted as error-free. In comparison with its average of 1.492 seconds, webportal.cmsenergy.com replied in 1.549 seconds on November 4, 2021.