Free hostnames are deleted after 30 days of inactivity. Inactivity is defined as when a host has not been updated or 'touched' from the web interface. No-IP Free hostnames must be updated once every 30 days. You can do this by logging into your No-IP account and click "Modify" next to your hostname then click "Update Hostname". You can also follow the link in the email we send out 23 days before the host expires and fill out the captcha.
When a host is deleted due to inactivity it's not immediately removed from our system. Recently deleted free hostnames are moved into a 30 day Redemption Period where they cannot be re-registered.
After 30 days have passed the host is available for anyone to register. You will need to login to your No-IP account, click the "Hosts/Redirects" tab and add the hostname again.
We suggest upgrading to the No-IP Enhanced service which will remove the limitations of the free service.
1. No more update requirement to keep the hosts active.
2. Access to the No-IP Phone support.
3. Ability to create 25 hosts.
4. More domains to choose from when creating a host.