Is .co a good domain extension? Identity Digital reports[1] that .co has surpassed 3.3 million registrations worldwide. It's a legitimate .com alternative used by Twitter (t.co), Google (g.co), and Amazon (a.co). The main risk: users may accidentally type .com. Consider buying both versions.
.co Domain Guide
The short, professional alternative to .com
What is .co?
.co is Colombia's country code top-level domain. Unlike most country codes, Colombia opened .co to global registration in 2010 and marketed it as shorthand for "company" or "corporation." According to the .CO Internet registry (now part of Identity Digital), .co has surpassed 3.3 million registrations worldwide[1]. This repositioning made .co a popular .com alternative.
The appeal is simplicity. .co is just two characters - the shortest TLD behind single-letter options. It looks clean on business cards, fits well in URLs, and suggests business use without spelling it out.
Major companies validated .co by adopting it for link shorteners: Twitter uses t.co, Google uses g.co, Amazon uses a.co. This visibility helped establish .co as legitimate despite being relatively new to global registration (2010). The extension is especially popular with e-commerce businesses that want short, clean URLs for packaging and social media.
Who Should Use .co?
Startups seeking short names: When your preferred .com is taken, .co often offers the same name at standard prices. The short length works well for brands. For a full breakdown of the tradeoffs, our .com vs .co comparison covers trust, pricing, and the typo problem.
Companies needing link shorteners: The two-character TLD makes URLs compact for social media, SMS, and marketing where character count matters.
Global businesses: Despite being Colombia's code, Google treats .co as a generic TLD. You can target any country without geographic SEO limitations.
Who should avoid .co: If the .com version of your name is actively used by someone else, typo traffic will flow to them. Test whether your desired .com is parked or active before committing to .co.
The Typo Problem
.co's similarity to .com is both its strength and weakness. The association makes .co feel familiar, but it also means some visitors will accidentally type .com.
If your .com is available, buy it too. Research from Growth Badger shows users are 3.8x more likely to type .com by default when they forget an extension[2]. Owning YourBrand.co and YourBrand.com costs $35-50/year total and eliminates the typo problem. Redirect one to the other.
If your .com is taken by an active competitor, consider a different name entirely. Sending accidental traffic to a competitor undermines your marketing.
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How .co Compares
| TLD | Best For | Price Range | Typo Risk |
|---|---|---|---|
| .co | Startups, short URLs | $25-35/year | High (.com) |
| .com | Everything | $10-15/year | None |
| .io | Tech startups | $30-60/year | Low |
| .ai | AI companies | $50-100/year | Low |
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Try DecideDomain FreeCommon Questions
What does .co stand for?
.co is Colombia's country code, but it's marketed globally as shorthand for "company" or "corporation." Most registrants use it as a .com alternative rather than for Colombian businesses.
Will people accidentally type .com instead of .co?
Yes, some will. The typo risk is real. If the .com of your name exists and is actively used, you'll lose traffic to it. Major .co users like Twitter (t.co) and Google (g.co) own both versions. Consider buying both if budget allows.
Is .co good for SEO?
Google treats .co as a generic TLD with no geographic restrictions. SEO performance depends on content, not TLD. A .co site can rank just as well as .com globally.
Why do big companies use .co?
Companies like Twitter (t.co), Google (g.co), and Amazon (a.co) use .co for short, memorable URLs in link shorteners and marketing. The two-character length is the appeal. These companies also own the .com versions.
Sources
- Identity Digital (.CO Internet): .co domain registration statistics and registry data (2025)
- Growth Badger TLD Perception Study: User trust, recall, and default TLD assumptions (2024)