DDNS and let's encrypt


I am using DDNS with NO-IP.com. I have a free domain name there. But is it also possible to have a certificate on this domain name? When it is not possible which DDNS provider work together with Let’s encrypt?

Kind Regards,


Hi Rob

That is what the HTTP and TLS-SNI challenges are for


Hi @rwalle,

no-ip.com added the domains they are using to provide DDNS some time ago to Public Suffix List so if the domain that you are using appears in this list you should have no problems to issue a certificate for your DDNS domain (with no issues I mean that you won’t/shouldn’t have problems hitting the Let’s Encrypt rate limits).


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Thanks my domain is on the mentioned list.

Kind regards,


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