Free, short and memorable dynamic DNS addresses.
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With a zzzz.io subdomain, you have an easy-to-remember address which you can point to any computer online, without paying domain registration fees.
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Have a media server at home? Create a zzzz.io subdomain and point it to your home IP address and enjoy constant access to your data on the go. You can even host a website under the subdomain.
Some ISPs re-assign IP addresses upon each connection. With a zzzz.io subdomain, you can easily set up your modem or computer to update its associated IP upon each change.