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: -
http://maps.google.de/maps?q=schweizer+str.+27,+bremen&hl=de&ie=UTF8&ll=53.073815,8.827879&spn=0.009501,0.012488&sll=53.073738,8.82288&sspn=0.009501,0.012488&vpsrc=0&hnear=Schweizer+Stra%C3%9Fe+27,+Bremen+28203+Bremen&t=m&z=16
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.