Every username you check on UsernameCheck.site gets a strength score from 1 to 100. But what exactly is that score measuring? And how can you use it to improve your username choice? This article breaks down the algorithm completely, with real examples.
Our algorithm evaluates 7 independent factors, each contributing a fixed number of points. The maximum score is 100.
Ideal range for memorability. Shorter gets +10 pts instead, too long also +10.
Numbers hurt memorability and look like placeholder names. Max points if zero digits.
Usernames starting with letters are cleaner and easier to mention with u/ prefix.
Underscores interrupt reading flow. One is acceptable in practice, but zero scores best.
Consistent casing looks professional in comment threads and mention contexts.
Unique characters > 60% of total = more distinctive and harder to confuse with other names.
Avoids generic reserved words that Reddit blocks or that look like placeholder accounts.
A perfect score means all 7 factors pass. Common in short, clean compound names.
Heavy number use, too short/long, or starts with special char. Hard to remember.
Passes most checks. Maybe one underscore or a trailing number. Acceptable.
Excellent across all metrics. Memorable, clean, brandable. The target zone.
The strength score is completely independent from availability. A username can score 95/100 but still be taken by another Redditor. The score only measures the intrinsic quality of the name itself — not whether it's registered. Always check availability separately (which our tool does automatically).
🎯 Our recommendation: Target a strength score of 70+ before committing to a username. If you're scoring below that, use our suggestion engine to generate 10 alternatives — most will score higher than your original.
Yes — here are the fastest improvements:
Enter any username and see your strength score instantly — free.
Check My Username →