Does .dns exist?
No. No — .dns is not a TLD. DNS is the system that resolves domains; it isn't a domain itself.
The full story
DNS (Domain Name System) is the phonebook that turns names into IP addresses, so '.dns' reads like a TLD to engineers — but no .dns has ever been delegated to the root zone, and ICANN has never received an application for it. Some internal networks abuse names like host.dns locally, which is exactly the kind of collision ICANN avoids delegating. For an infrastructure brand, the resolvable endings below are the real move.
What to use instead
.io — The default startup TLD of the 2010s.net — The eternal runner-up.dev — Best value in domains for anything developer-facing
Wondering about another extension? Every real TLD is in the directory.
This answer is generated from the live IANA root zone list, not from vibes. If the DNS changes, this page changes.