What is .tci?
.tci is one of the older generic TLDs: ICANN records its delegation as December 5, 2015, long before the 2012 expansion.
Emergency Back-End Registry Operator Program - ICANN also runs 6 other TLDs, including .desi, .nowruz, .pars, .shia and .wed.
Under the hood, the root zone points to 8 name servers for .tci, every one of them reachable over IPv6. The delegation is DNSSEC-signed, so resolvers can verify that answers for .tci haven't been tampered with on the way. Registration data is published over RDAP.
Same registry, other endings
6 other TLDs share this operator.
.tci FAQ
What does .tci mean?
.tci is a generic top-level domain named for the word "tci". It doesn't belong to any country.
What country is .tci?
None. .tci is a generic top-level domain, so it isn't tied to any country.
Who owns the .tci domain extension?
Emergency Back-End Registry Operator Program - ICANN operates .tci as its registry, under a registry agreement with ICANN.
When was .tci created?
.tci was delegated to the DNS root zone on December 5, 2015.
Is .tci a valid domain?
Yes. .tci is an active top-level domain in the DNS root zone, delegated in 2015, so .tci addresses work in every browser.
Can I buy a .tci domain?
.tci names are sold through ICANN-accredited registrars. Some gTLDs restrict who can register, so read Emergency Back-End Registry Operator Program - ICANN's policy if you're unsure.
Is .tci DNSSEC-signed?
Yes, the root zone holds a DS record for .tci.
Sources
Data from IANA root zone version 2026102000. Last changed January 30, 2025. Spotted something wrong? Tell us.
