T-online.ch underwent 1 functioning checks over the 1 186 day period starting August 30, 2021, according to the records. The operability of t-online.ch was confirmed 1 times through all checks, as proven by the 200 status on August 30, 2021. There were no offline periods for t-online.ch as of November 28, 2024, according to all inspection results. Based on the received replies, it has been confirmed that there were no error responses as of November 28, 2024. T-online.ch's 0.278 seconds average response time differed from its 0.278 seconds reply on August 30, 2021.