What is .open?
Brand TLDs operate under Specification 13 of ICANN's registry agreement. It lets a trademark owner keep every second-level name for itself, so you won't find .open names for sale at any registrar.
ICANN's records put the delegation of .open on August 8, 2016. Like most of the newer endings, it was applied for in the 2012 New gTLD Program round and its registry agreement was signed on July 31, 2015.
American Express Travel Related Services Company, Inc. also runs 2 other TLDs, including .americanexpress and .amex.
Under the hood, the root zone points to 6 name servers for .open, every one of them reachable over IPv6. The delegation is DNSSEC-signed, so resolvers can verify that answers for .open haven't been tampered with on the way. Registration data is published over RDAP and WHOIS (the WHOIS server is whois.nic.open).
Same registry, other endings
2 other TLDs share this operator.
.open FAQ
What country is .open?
None. .open is a generic top-level domain, so it isn't tied to any country.
Who owns the .open domain extension?
American Express Travel Related Services Company, Inc. operates .open as its registry, under a registry agreement with ICANN.
When was .open created?
.open was delegated to the DNS root zone on August 8, 2016.
Is .open a valid domain?
Yes. .open is an active top-level domain in the DNS root zone, delegated in 2016, so .open addresses work in every browser.
Can I buy a .open domain?
No. .open is a brand TLD under ICANN Specification 13, so names are reserved for American Express Travel Related Services Company, Inc.
Is .open DNSSEC-signed?
Yes, the root zone holds a DS record for .open.
Sources
Data from IANA root zone version 2026102000. Last changed May 11, 2024. Spotted something wrong? Tell us.
