Shortened link
The link you followed has been shortened with is.gd. Shortened links can go anywhere on the Internet so you shouldn't continue if you got the link from a suspicious source e.g. junk email.
The full original link is shown below. Click the link if you'd like to proceed to the destination shown: -
https://www.taskcards.de/#/board/ed2c72c5-92dc-4216-b6bc-da3ec6d9d4d3?token=fc6a90ba-3ede-49af-ba81-a3a81154dde9
Tip: some QR readers fail to read mixed case URLs properly. We recommend using the lower case option or a lower case custom URL with QR codes.