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Moving a domain here

Add the zone and copy in every record your domain uses today (website, email/MX, SPF and DKIM TXT records). Do this first so nothing breaks when you switch.
At your registrar, replace the nameservers with ns1.custdns.twisted360.net.
Watch the zone page. When delegation shows as working, the switch is done. It usually takes a few hours, sometimes up to 48.

Dynamic DNS

Add an A (IPv4) or AAAA (IPv6) record, then choose Enable DDNS next to it to get a key. Your device then calls:

https://freedns.twisted360.net/nic/update?hostname=home.example.com&password=YOUR_KEY

Add &myip=203.0.113.7 to set a specific address; without it we use the address the request comes from. The same key works with HTTP basic authentication (username = hostname, password = key), which is what most routers and ddclient send.

ddclient example:

protocol=dyndns2
use=web
server=freedns.twisted360.net
ssl=yes
login=home.example.com
password='YOUR_KEY'
home.example.com

Replies follow the dyndns2 convention:

good 203.0.113.7 Updated to that address.

nochg 203.0.113.7 Already set to that address. Nothing changed.

badauth Hostname or key is wrong, or DDNS is off for that name.

nohost DDNS is on for this name, but not for this address family (A vs AAAA).

abuse Updates are coming too fast (once every 30 seconds at most), or the account is disabled.

911 Something failed on our side. Try again in a few minutes.

Secondary zones

If you run your own primary nameserver, add the zone as a secondary and give us your primary’s IP address. On your primary:

allow zone transfers (AXFR) to 208.160.163.177
send NOTIFY to 208.160.163.179, so changes reach us within seconds instead of at the next refresh
list ns1.custdns.twisted360.net as NS records in your zone

DNSSEC

Turn it on from the zone page. We sign the zone with an ECDSA P-256 key (algorithm 13) and show the DS record. Give that DS record to your registrar to finish. To turn DNSSEC off, remove the DS record at the registrar first, wait a day, then turn it off here.

Limits and fair use

Each account can host 10 zones. Ask support@twisted360.net if you need more. Zones used for spam, phishing or malware are removed without notice.