"The .tk domain (Tokelau’s country code) was known for letting people register at no cost under certain conditions, often for 1 year at a time. However, free .tk registrations ended after Meta sued Freenom in March 2023 over abuse and lookalike phishing-related activity."

I only remember .tk

And mandatory fuck meta

Different take but nip.io and sslip.io just let you use your IP as your domain. When you use the hex notation, it's shorter, more usable and subdomains can just be used at will. Depending your IP address you may even get lucky and get a vanity looking subdomain. Granted it'll be fixed as long as your IP is not changing. When it does, you gotta switch domains. I'm mentioning this because you said your IP is fixed and I have a similar use with these.

Afraid.org, used to use that

https://nic.ua/en/domains/prices

ukrainian registrar, gives pp.ua for free for one year, renewable. will ask for cc details. legit

http://pagekite.net/

Most of those free dns settups use subdomains already. Unless you cant, for a temporary domain name, I recommend just creating an account at a mainstream/reputable dns provider and buying whatever is on sale for a dollar or two per year. Dont plan on renewing because those ones shoot up.

Hopefully the .self tld becomes a thing because it is supposed to be free: https://hccf.onmy.cloud/2026/06/21/reclaiming-our-digital-selves-hccfs-vision-for-a-human-centered-top-level-domain/

Not sure the use-case but if its temporary: (Otherwise you have to respond monthly saying you are still using it)

Maybe someone can tell me why they are unethical or you shouldn't use them but I believe you can get a free domain usually from noip

Should be noip.com I believe

nobody said desec.io yet, it's a non profit from berlin and they give free subdomains under dedyn.io, with a proper API, so you can do the DNS challenge for let's encrypt (there's a caddy plugin for it too). I haven't run a domain there myself so can't say how it is long term, but for a "try some things" domain it looks like the least shady of the free ones I guess.

I use free.nf for free subdomains and free hosting.

Don’t know how ethical or not ethical they are.

Edit: infinityfree is actually the name, they offer different free subdomains on some set of names they own. free.nf is one of them.

If you don't mind using alternative DNS servers, meaning this won't be accessible to the average person, you could try OpenNIC.

You can try EU.org possibly.

What are you looking to do? If it's to do with a name server, you can delegate a subdomain and it's children to be managed by another server using a ns record. This is actually how DNS works in general.