.co Domain Age Checker

co is Colombia's country-code TLD, but since 2010 it's been marketed worldwide as a short, memorable alternative to .com when the exact .com you want is already taken. Registry operations run through Identity Digital's infrastructure, and RDAP support is generally solid for .co lookups.

Because .co is frequently used as a fallback purchase — registered right after someone discovers their preferred .com is unavailable — it's common to see .co and .com versions of the same brand registered within days of each other. If you're auditing a .co domain, checking whether a matching .com exists and comparing creation dates can tell you which one came first and which is the "real" canonical domain for that brand.

co domains also see meaningful secondary-market activity, so an unusually short registration-to-expiry window or a recently changed registrar can be a sign the domain changed hands recently — worth checking against the Wayback Machine if the content doesn't match what you'd expect from its stated age.