301 from update.dedyn.io?

Hi zanderz,

Thanks for your message, and welcome to deSEC! :slight_smile:

What you are observing is that our server redirects all http:// requests to https://. To avoid this (and to benefit from HTTPS security), you should be making update requests directly via HTTPS.

This can be achieved by adding ssl=yes to the configuration (see Configuring your dynDNS Client — deSEC DNS API documentation).

Stay secure,
Peter

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