.co domain availability checker
Type a name to see whether its .co is registered, asked live of the .co registry. If it is taken, the same name is checked in 17 other extensions below it, .com first. A free .co costs from $15.50 the first year and renews at $31.20; just over half the .co names people checked here (54%) were already registered.
Free, no sign-in. Free names show the price and a Register button; checkout confirms the name with the registrar again before you pay. Every extension at once: domain availability checker; mixed extensions in one list: bulk domain checker.
Six .co checks, 4 November 2026
Three names we know are registered and three random strings, sent through this checker on the live site. 3 of 3 known names answered taken and 3 of 3 random strings free.
| Domain | What it is | Answer | Time |
|---|---|---|---|
| t.co | Known site | taken | 81 ms |
| angel.co | Known site | taken | 1,012 ms |
| google.co | Known site | taken | 532 ms |
| a0pradcbbq9.co | Random string | free | 431 ms |
| omqurtrz0sb.co | Random string | free | 448 ms |
| wfcqjxja4a9.co | Random string | free | 455 ms |
Time is from sending the check to the answer arriving, all six in one run. A taken answer can come from our record of names found registered in the past 7 days, which is why some known names answer fastest; a free answer is always asked of the registry.
.co at a glance
- Registry
- Ministry of Information and Communications Technologies (MinTIC); technical operator CentralNic
- This checker asks
- The .co registry's WHOIS server (whois.registry.co), because .co has no RDAP server in IANA's list; if WHOIS does not answer, the DNS
- DNSSEC
- Signed
- First year
- $15.50 at Dynadot, $15.76 at Porkbun
- Renews at
- $31.20 at Dynadot, $31.20 at Porkbun
- Five years
- $140.30 at Dynadot
- Taken on domhaul
- 54% of 202 names checked since 4 August 2026
- Who can register
- Anyone; no Colombian presence needed
- Name length
- 1 to 63 characters (the registry's rule); names of 1 to 3 characters are premium priced.
- Minimum term
- 1 year minimum
Registry: IANA root zone database. Prices: the lowest standard (non-premium) quote, USD, as of 24 October 2026. Taken: the share of distinct names people checked on domhaul that were already registered. Transfer prices and every registrar quote are on the .co price page.
.co availability questions
Will people type .com instead of my .co?
Some will. .co is one letter short of .com, so visitors and email sometimes end up at the .com. If you build on a .co, check the .com row under the .co answer: free, register it too and point it at the .co; taken, look up its owner with the WHOIS lookup so you know where stray mail goes.
Is .co only for Colombian businesses?
No. It is Colombia's country code, run for the ICT ministry (MinTIC), but anyone anywhere can register one with no local presence, and the registry markets it as short for company. Most .co names are used by businesses outside Colombia.
Why does a .co renew at double the first-year price?
The first year is discounted; the renewal is the real yearly price. On 24 October 2026 a .co cost $15.50 at Dynadot and $15.76 at Porkbun to register, and $31.20 at both to renew, so five years come to $140.30. Budget for $31.20 a year, not $15.50.
Can I get a one-letter .co?
.co allows names from 1 to 63 characters, and t.co (the link shortener of X, formerly Twitter) shows it can be done, but the registry treats names of 1 to 3 characters as premium and prices them one by one. A short .co that shows free here can cost far more than the standard price at checkout.
Check another extension
.com .ai .io .app .dev .net .org .xyz .gg. Taken everywhere? The AI domain name generator suggests names and checks each one live. Look up a taken name's registrar with the WHOIS lookup, when it runs out with the domain expiration checker, or what it is worth in the domain value calculator.