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Last Update Updated 1 month
Domain Auth.0/100
Est. Value$4,400
Est. ROI +25,782%
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Domain Highlights

App Name
3 chars .ai Numeric 99 backlinks

421.ai offers a clean, three-digit numeric structure within the high-demand artificial intelligence extension. Short numeric domains in this TLD often appeal to tech startups, data analytics firms, or developers seeking a concise, memorable brand for an API or specialized algorithm. The presence of nearly 100 backlinks and a Trust Flow of 21 suggests a level of historical activity that distinguishes it from fresh registrations. While the current auction activity remains light, the significant spread between the appraisal and early interest makes this a notable candidate for investors focusing on liquid, short-form liquid assets.

Source Namecheap
Last Known Bid $17.00
Auction Type Expired Domain
Number of Bids 3
End Date Jul 20, 2026
Time Remaining 0h 0m
Status Ended
Auction Link View Listing
TLD .ai
SLD 421
Length 3 characters
Word Count 1
Registration Date N/A
Expiry Date N/A
Domain Age N/A
Appraisal Value $4,400
Numeric Yes
Hyphenated No
Backlinks 99
Referring Domains 0
Domain Authority (DA) 0/100
Page Authority (PA) 0/100
Trust Flow (TF) 21
Citation Flow (CF) 8
Est. Monthly Traffic 0

How each scoring factor contributed to the overall rating of 75/100.

TLD Quality
10.0/10.0
Domain Length
10.0/10.0
Brandability
1.0/10.0
Domain Age
2.4/4.0
Number of Bids
7.5/22.5
Current Bid Value
2.4/12.0
Backlinks / Authority
2.5/5.0
Appraisal Value
16.8/21.0
No Hyphens
4.0/4.0
No Numbers
4.0/4.0
Keywords
0.0/5.0

Special Bonuses
Numeric Short Domain +10

Purely numeric 3-digit domain (+10)


Final Rating 75/100
Est. $4,400 — 258.8× current bid
Last Known Bid
$17.00
Auction Ended
Source Namecheap
Bids 3