After 15 years, Dyn free is closing down
Dyn announced today that they are ending free hostname program on 7 May 2014. This means that you will no longer be able to use the free hostname service from Dyn. Any free accounts that have not upgraded to VIP will have their DynDns free services disabled by then.
Check out their FAQ page on Free User Discontinuation and their blog post for more information.
So what should you do?
Instead of signing up for the paid DynDns services, you can consider other free alternatives like:
These DynDns alternatives work just like Dyn. They are also supported in most router’s DDNS client.