1und1.de was checked for availability 3 times during a 1 431 day period beginning on December 19, 2020. With the most recent 200 status code response on June 17, 2022, tests show 1und1.de was online 3 times out of all the checks that were done. No instances of unavailability for 1und1.de were detected during inspections conducted as of November 19, 2024. The results of the replies received as of November 19, 2024, confirmed that no responses had an error status. The response time noted for 1und1.de was 0.232 seconds on June 17, 2022, against a 0.186 seconds average.