666.co
AI-powered valuation based on 34 public domain sales.
Low
$8,000
Mid
$15,000
High
$35,000
Ultra-short numeric .co with strong comps like r4.co ($12K) and gro.co ($10K), but lacks .com premium and has limited end-user appeal.
ultra-short .coall-numericmemorable
Crowstash valuation for 666.co. Estimates are advisory and based on public sales only.
Signals
Length: 3 (ultra-short)TLD: .coAll-numeric
Comparable sales (public record)
| Domain | Sold | Venue | Date |
|---|---|---|---|
| site.co | $5,000 | Sedo | 2020-06-03 |
| r4.co | $12,000 | Sedo | 2016-03-23 |
| hw.co | $8,000 | Sedo | 2025-03-19 |
| gls.co | $9,759 | Sedo | 2019-08-14 |
| sites.co | $15,500 | .CO Landrush Auctions | 2010-10-06 |
| pax.co | $35,000 | — | 2026-05-06 |
| emma.co | $14,750 | Sedo | 2026-03-04 |
| being.co | $19,000 | Pvt Sale/NamePros Lander | 2026-01-21 |
| soft.co | $10,027 | Dynadot | 2025-12-25 |
| gro.co | $10,000 | Dynadot | 2025-12-25 |
| nova.co | $160,000 | NamePros Lander/Grit Brokerage | 2025-11-26 |
| wand.co | $50,000 | Rename.co/NamePros Lander | 2025-11-26 |