It's used in country-code domain extensions. More than 20 countries use . CO to mean company and/or commercial content in their websites (e.g. . ... CO means Colombia and it also means the State of Colorado in the USA.
Is .com or .co better?
While it's possible to rank well for a . co address with good search engine optimization (SEO), you'll never outrank the same domain name at a .com address. That . ... This legacy .com domain name extension is better overall for business and marketing purposes because it's just more familiar.
What does the .co domain mean?
co is a top-level domain extension and it's the acronym for company or corporation. . co domain names are easy to recognize, simple to remember and flexible to use. They offer international recognition in a landscape where it's essential to register a domain name with care — not just settle for what's available.