From December 18, 2020, forward over the next 1 434 days, there were 2 checks done on certasenergy.co.uk's uptime. Certasenergy.co.uk was up a total of 2 times in the tests conducted, most recently returning status code 200 on January 6, 2022. As of November 22, 2024, certasenergy.co.uk showed no instances of downtime during all inspections conducted. As per the replies obtained as of November 22, 2024, no errors have been encountered in any of the responses. Certasenergy.co.uk's average response time of 1.038 seconds was different from its January 6, 2022, reply time of 1.383 seconds.