DuckDNS

Duck DNS is a free dynamic DNS service. Using this service you can have a custom domainname under duckdns.org point at your home computer.

{
  "token": "sdfj-2131023-dslfjsd-12321",
  "domains": ["my-first-account.duckdns.org", "my-second-account.duckdns.org"]
}

Configuration variables:

• token (Required): Your Duck DNS API key.
• domains (Required): A list of domains to update DNS.
• seconds (Optional): Seconds between updates to Duck DNS.