Seems to be online, but honestly duckdns isn't exceptionally reliable...
Check out hurricane electric. You can activate any A record as a DDNS record: http://i.xno.dev/u/fpaXcG.png
Once the A record is activated, they'll give you a key that you can simply update with curl or something similar. I created a function for my shell and just run it via crontab;
fn ddns { xhs -4 "https://dyn.dns.he.net/nic/update?hostname=domain.com&password=password&myip="(xhs -4 -b https://myip.addr.tools/plain) }
and then just execute:
❯ ddns
HTTP/1.1 200 OK
Cache-Control: no-cache, must-revalidate
Content-Length: 18
Content-Type: text/html
Date: Sun, 02 Mar 2025 09:35:31 GMT
Email: DNS Administrator <[email protected]>
Expires: Mon, 02 Mar 2026 09:35:31 GMT
Server: dns.he.net v0.0.1
nochg {ip}
No dependencies, no software, and he.net is an ISP/Transit/COLO so they're highly available (https://he.net/Hurricane_Electric_Geographic_Network_Map.jpg). I've been using their service for 5-6 years and never been down.
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