Premium domain for sale
21c.xyz
A unique and memorable name ready for business.
Perfect for business ideas like a mobile app brand, a booking or scheduling tool, a membership site and more.
Sale ends today — price reverts to $9,999 at midnight
Buy 21c.xyz
$9,999 $1,000
What's included
- ✓ Premium domain name
- ✓ 100% secure transfer
- ✓ Buyer protection on every marketplace
21c.xyz benefits
Premium domain name
With millions of businesses competing for attention, a premium name helps you stand out from the crowd.
Transparent price
A fixed sale price of $1,000 — buy instantly without negotiating with the seller.
100% secure transfer
An established marketplace holds your payment and only releases it once 21c.xyz is confirmed in your account.
Why this name works
Just 3 characters before .xyz — it fits a logo, an app icon and a business card without shrinking the type.
21c facts
Name length — Excellent
21c is 3 letters long. At 3 letters it sits in the same ultra-short tier as some of the world's most valuable brand names.
Domain extension — Good
.xyz is a descriptive extension that reinforces what the name is about.
Related keywords
Who this name is best for
- Bootstrappers who would rather own a memorable brand than rent traffic to a long, hyphenated URL.
- Builders in the short, brandable tier who want a domain that feels native to their industry rather than borrowed from another one.
- Early-stage teams happy to use .xyz — a modern extension that gives the name instant category context and leaves the best .com alternatives taken.
See 21c in action
A great name works everywhere. Here's how 21c.xyz could look on your app and business cards from day one.
21c.xyz
hello@21c.xyz
www.21c.xyz
The .xyz extension and a 3-letter name keep every touchpoint short, clear and easy to remember — on screens, in print and in conversation.