[kristofferR]

The cool thing about tweak.tk is that it's operated by the .tk-registry and you're getting a free generated .tk domain instead of just a page on the domain of the shortening service. Jdyk56.tk instead of bitly.com/jdyk56

[ultrasaurus]

Wow, that's simultaneously cool and means I'm not going to use it. http://ddpor.tk looks too much like a link to a scam site.