.duo

Is .duo a real TLD? Who’s applying to run it?

Nobody has applied for .duo in its own right, as of 7 October 2026. ShortDot named .duo as the backup string of its .uni application.

Category: Brand
on the record since Sep 8, 2026 · updated Oct 7, 2026
◈AI score
31/ 100
Usable but limited

A niche TLD for two-person teams, co-founder pairs, musical and creative duos, couples, and product lines or apps built around a "pair" concept who want a short, pronounceable suffix that says "two".

assessed by claude-fable-5-1 · Sep 8, 2026
AI score 31 of 100. .com scores 96, .ai scores 84.
who it’s for

two-person teams, co-founder pairs, musical and creative duos, couples, and product lines or apps built around a "pair" concept who want a short, pronounceable suffix that says "two"

BrandCultureCommercetech
applicants
0 applications · 1 backup

Nobody has applied for .duo in its own right.

backups
ShortDotReplacement

shortdot.bond ↗

One of the 80 strings ShortDot published for the ICANN 2026 round. ShortDot states it has submitted 40 applications, but publishes the 80 strings without revealing which 40 are applications and which 40 are designated replacements. The submission claim is therefore applicant-level, not string-level: nothing in the source says ShortDot applied for THIS string. Catalogued, not announced.

listed in a catalog Sep 8, 2026 · announced Sep 9, 2026 · named as replacement for .uni Oct 7, 2026

Replacement for .uniGenericICANN NA2626T-T16549ShortDot (Ireland) Limited ↗
closest 2012 bets
3 of 1,408

The 2012 applications making the most similar bet. Chosen by AI from every string in that round, without being told what happened to any of them.

.onestrong parallel
delegated 2015 · live268,792 domains · May 2026

Same bet: a tiny, universally understood number-word with no industry attached, sold on evocative brandability and right-of-dot phrasing rather than on any category of registrant who must have it.

2 applicants contested it · scored 55* in 2012 · run by One.com A/S

See .one in Stats
.teammoderate
delegated 2015 · live65,616 domains · May 2026

Same bet in a different group size — an unowned collective-identity noun sold to the small unit it names (a pair instead of a squad), where success depends on people wanting the group itself, not a business category, as their address.

4 applicants contested it · scored 40* in 2012 · run by Atomic Lake, LLC

See .team in Stats
.zeromoderate
delegated 2015 · live2 domains · May 2026

Also a short numeric-abstract lexical string whose value is brand flavor and suffix mechanics, with the same open question of whether anyone anchors a primary identity on a quantity word.

uncontested · scored 25* in 2012 · run by Amazon EU S.à r.l.

See .zero in Stats

* A separate 2012-only read, time-locked to what was public that year. Different scale from this page’s score, so the two are not comparable.

What a .duo domain is

.duo is not a TLD yet. It is a string on our record of the ICANN 2026 new gTLD round, in our Brand category. Nobody has applied for .duo in its own right. It is named on ICANN’s list as part of an application for another string.

Is the .duo domain extension real yet?

.duo is not yet a domain extension you can register: nothing resolves under it, and no registrar sells names in it. Nobody has applied for it on the public record; the ICANN 2026 new gTLD round is the process that would decide whether it becomes one.

When can you buy a .duo domain?

You can’t yet. A .duo name can only be registered once the string is delegated (added to the DNS root) and its registry opens. Last round's closest parallel to .duo was .one, delegated on 22 January 2015.

Is .duo a real TLD?

Not yet. .duo is not in the DNS root, so nothing resolves under it. It’s here because ICANN’s list names .duo as part of an application for another string. Every entry on this page links to its source.

history
  1. ShortDot · now replacementOct 7, 2026

    Named on the ICANN Reveal Day list, 7 October 2026 as the replacement string of the applicant's .uni application

    ICANN
  2. ShortDot · now announcedSep 9, 2026

    Founder ruling 2026-09-09: an applicant-level submission claim plus a published string list is an announcement for every listed string, whether primary or designated replacement (LFG, Journey to the West and Aruba filed the same way). ShortDot (Ireland) Limited stated it submitted 40 applications and published the 80 strings on shortdot.bond/80 on 2026-09-08.

  3. ShortDot · first recordedSep 8, 2026
    ShortDot (Ireland) Limited
news & sources
ICANNICANN Reveal Day list, 7 October 2026
Oct 7, 2026
“NA2626T-T16549 · ShortDot (Ireland) Limited · replacement string of .uni”
ICANN
CatalogShortDot's 80 strings for the ICANN 2026 round
Sep 8, 2026
“ShortDot (Ireland) Limited has submitted 40 applications to ICANN's 2026 New gTLD Program. The 80 strings shown include applied-for and designated replacement strings across ShortDot's 40 ICANN applications, presented without revealing their status or pairing.”
ShortDot (Ireland) Limited
Considering a name on .duo?Appraise a name on this TLD →

This record is corrected in the open. See the changelog and methodology.