NF

NumberFlag

spam defense network

Transparency

How scoring works

NumberFlag combines verified community reports with recent activity to produce a clear 0–100 risk score. Higher scores mean higher scam or spam likelihood.

What drives the score

Report volume

More recent reports increase risk, especially when they cluster in short time windows.

Report type

Scam and spam reports have stronger weight than safe confirmations.

Recency

Fresh reports matter more. Older activity decays over time.

Score bands

0–29

Low risk. Few reports or mostly safe confirmations.

30–69

Mixed signals. Use caution and read latest notes.

70–100

High risk. Multiple scam or spam reports in recent activity.

Reporting guidelines