How a fraud score works
A website, payment processor or bot detection system combines several signals into a number or risk category. It then compares the result with its own thresholds. A low-risk request may continue, while a higher-risk one may trigger review, a CAPTCHA or a block.
There is no universal scale. Many services use 0–100, often with higher numbers meaning greater risk, but the direction and thresholds vary. A score is an estimate, not proof that a visitor committed fraud.
Signals behind the score
A scoring system may consider:
- Network identity: the IP’s ASN, connection type, location, proxy or VPN indicators and history of abuse.
- Request behavior: rapid requests, repeated failures or activity that exceeds normal rate limits.
- Client consistency: mismatches between the user agent, device data, cookies and browser fingerprint.
- Account context: account age, sign-in history, transaction patterns and changes in location or device.
Each service uses its own data and weighting. The same visitor can receive different scores from different providers.
Fraud score vs IP reputation
| Fraud score | IP reputation | |
|---|---|---|
| Scope | IP, device, behavior, account or transaction | Mainly the history of an IP address |
| Result | Combined risk estimate | Classification or risk for one IP |
| Changes with | Current context and activity | New abuse reports and database updates |
IP reputation is often one input to a fraud score. A clean IP can still be part of a high-risk request if other signals conflict.
What proxy users should do
A proxy changes the source IP a website sees. It doesn’t change cookies, account history, request patterns or browser fingerprints, so switching proxies alone won’t resolve every high score.
For authorized testing or data collection, keep request rates within the site’s limits and use a stable session for related steps. Keep language, time zone and other client settings consistent with the intended test. If a site challenges or blocks traffic, slow down, inspect the response and follow its terms and robots.txt rules rather than repeatedly rotating addresses.
FAQ
What is a good fraud score?
It depends on the scoring provider. Check its scale and risk bands because a score of 20 may mean low risk in one system but something different in another.
Does using a proxy increase a fraud score?
It can, but not automatically. The result depends on the IP’s history and network type as well as your browser, account and request behavior.
Can I lower an IP fraud score?
You usually can’t edit a third-party score directly. Stop abusive traffic, secure any compromised systems and contact the scoring service or website if its data is wrong; database updates may take time.