.co is the country-code TLD for Colombia. In practice, the rest of the world reads it as an abbreviation for company, commerce, or community. That ambiguity is the strength of .co: it does not lock you into a vertical, it just reads short and serious.

What makes .co useful

Two-letter TLDs are inherently memorable, and .co is the closest thing to .com that is still broadly available. Where a one-word .com is parked or aftermarket, the same name at .co is often still reachable at retail pricing. That is the main reason founders keep using it.

Pricing and registration

Registration is roughly $20–$35 per year, depending on the registrar.
Anyone can register; no local presence is required.
WHOIS privacy is available at no extra cost through most registrars.
Two-letter and three-letter names are scarce; expect aftermarket pricing.

SEO implications

Google treats .co as a generic TLD, not as a Colombia-specific one. That means it ranks internationally without any geographic bias. You do not need to set a country targeting in Search Console to avoid being filtered to Colombia. This is a critical detail that is still misunderstood by some developers coming from .com.

Who should use .co

Startups that could not get the .com of their preferred name.
Companies whose name ends in "co" (e.g. a brand called "Maple" reading maple.co).
SaaS products aimed at a general business audience, not specifically engineers.
Side projects and portfolios where brevity matters.

When to pick .io or .dev instead

If your product is developer-facing, .dev or .io communicate a clearer story to that audience. .co is more neutral and works better for consumer or business audiences where the engineer signal is not the headline. The TLD guide walks through the comparison in more detail.

Availability checks for .co

namebox.dev verifies .co names against the registry in real time through RDAP (RFC 7483). Each result shown as available reflects the current registration status at the moment of your search, not a stale DNS lookup. Run a search to see live .co candidates for your project.