The data indicates viessmann.com underwent 2 checks of its accessibility during the 2 107 days after February 11, 2019. Last recorded on February 28, 2023, with a 200 status code, viessmann.com was available 2 times out of the total tests done. All inspection results as of November 19, 2024, showed that viessmann.com had never experienced an offline time. Based on the responses received, no error status code was returned as of November 19, 2024. Although viessmann.com responded in 0.065 seconds on February 28, 2023, records show that it took an average of 0.038 seconds to reply.