Websites block IP addresses for one core reason: risk reduction. Blocking an IP is the fastest way to stop known abuse before it reaches your systems. The best programs go further by using reputation and context to reduce false positives and keep legitimate users flowing.

FraudGuard gives teams the intelligence and tooling to enforce IP policy with precision.

Common Reasons Websites Block IPs

  • Malicious activity: Malware distribution, phishing, or active exploitation.
  • Bot automation: Scraping, brute force attempts, or credential stuffing.
  • Fraud prevention: Stolen payment methods and account takeovers.
  • DDoS mitigation: Limiting noisy sources before they flood infrastructure.
  • Policy enforcement: Country restrictions, licensing rules, or compliance requirements.

The Problem With Blanket Blocking

Overblocking creates support tickets, lost conversions, and frustrated customers. The better approach is risk-based enforcement: block the worst, challenge the suspicious, and allow the rest.

A Risk-Based Blocking Strategy

  • Use IP reputation to score risk before you block.
  • Check attribution so you understand the network behind the traffic.
  • Scale with automation using APIs and bulk workflows.
  • Continuously update rules based on new threat signals.

How FraudGuard Helps

FraudGuard provides the intelligence and enforcement workflow teams need to block bad IPs while minimizing false positives:

Summary

Websites block IP addresses to reduce abuse, fraud, and operational risk. The most effective approach is not blanket bans but reputation-driven enforcement. FraudGuard helps you make those decisions quickly and consistently.

Explore the full IP Reputation & Abuse Guide for related topics.