Scamalytics

Scamalytics is an IP-based fraud detection service that assigns a fraud score to every IP address on the internet, representing the likelihood that traffic from that IP is fraudulent, abusive, or high-risk. Rather than functioning as a privacy tool for users, Scamalytics serves fraud prevention teams, risk departments, and financial services who need to evaluate whether an incoming connection is likely to be legitimate or fraudulent. For proxy users, Scamalytics is important because if your proxy IP has a high fraud score in their database, services using Scamalytics will block or flag your traffic, treating it as suspicious even if you are conducting legitimate business.

The core service is the IP fraud score, a numeric rating that Scamalytics assigns based on the IP's historical behavior. The score ranges from zero to one hundred, with higher scores indicating greater fraud risk. The scoring is derived from multiple factors including whether the IP appears in known proxy or datacenter ranges, whether it routes through Tor exit nodes, whether it has been used for credential stuffing or brute-force attacks, and whether the IP's historical traffic patterns match those associated with fraud. Scamalytics does not publish the exact weighting of these factors, which is typical for fraud detection services that need to prevent gaming of their system.

What makes Scamalytics distinct from simpler proxy detection tools is its focus on fraud risk rather than just proxy or VPN status. Many IP lookup services classify an IP as either legitimate, residential, or proxy, forcing users into categories that do not reflect fraud risk accurately. Scamalytics instead provides a continuous score that acknowledges that some IPs are higher risk than others even within the same category. A residential ISP IP might have a low fraud score because it is legitimately assigned to household users, while a proxy IP might have a moderate score if it is a reputable proxy service with low abuse history, or a very high score if it belongs to a proxy provider with a history of abuse.

Scamalytics assigns additional data beyond the fraud score, including whether the IP is classified as a proxy, whether it is a known Tor exit node, the true country of the IP (useful because some proxies misrepresent their location), the ISP or network operator, and the Autonomous System Number (ASN). The platform also provides fraud risk severity assessments that break down what type of fraud risk the IP represents. An IP might be flagged as high risk for credential fraud but lower risk for account takeover, allowing services to make contextual decisions about how to handle traffic from that IP.

The primary use case for proxy managers is pre-purchase verification and ongoing monitoring. If you are considering buying a batch of residential proxies from a provider, you can check Scamalytics scores for a sample of those IPs before committing to purchase. If the scores are consistently high, the proxy provider has likely sold those IPs to customers who have used them for fraud or spam, and those IPs will be blocked or flagged by many services. If the scores are low to moderate, the proxy provider's IPs are less likely to be flagged by fraud detection systems, though they may still be detected as proxies through other methods.

Scamalytics provides APIs for developers and risk teams who need to check fraud scores programmatically at scale. You can send IP addresses to Scamalytics and receive fraud scores, proxy status, Tor status, and other metadata in structured responses. This is valuable if you are building applications that need to evaluate incoming traffic or if you manage proxy infrastructure and want to monitor your IPs' fraud scores over time. The API integrates into risk management workflows where you can automatically flag, rate-limit, or block traffic from high-scoring IPs.

The platform also offers bulk lookup capabilities for teams that need to check hundreds or thousands of IPs. You can upload a list of IPs and receive fraud scores for all of them in a structured format, which is useful when you are onboarding a new proxy provider and want to evaluate the entire IP pool before using it. This batch processing approach is more efficient than checking individual IPs one at a time through the web interface.

Scamalytics maintains that its fraud scoring is based on observed abuse patterns and publicly available data about proxy IP ranges, Tor exit nodes, and known datacenter infrastructure. The platform does not publish the historical data behind its scoring, which is standard practice for fraud detection services that need to avoid being gamed. If you disagree with a score or believe an IP is being misclassified, Scamalytics provides a dispute process through its business team, though resolution can take time and is not guaranteed.

The limitations of Scamalytics are that high fraud scores do not always indicate an IP that is actually unsuitable for your use case. A datacenter proxy might have a high Scamalytics score simply because it is infrastructure hosting many proxy services, but if you are using it for legitimate purposes like web scraping or testing, a high score does not mean your traffic will actually be detected. Conversely, a residential proxy might have a low fraud score but still be detected and blocked through other methods like TLS fingerprinting or behavioral analysis. Scamalytics is one data point in understanding proxy quality, not the only arbiter of whether an IP will work for your purposes.

The scoring also depends on Scamalytics' data quality and update frequency. If an IP has recently been repurposed or reassigned to a different owner, Scamalytics' database might not reflect that change immediately, causing misclassification. The platform maintains its database through continuous monitoring and regular updates, but there are always delays between when an IP's ownership or use changes and when the database reflects that change.

Scamalytics is best suited for infrastructure teams and proxy buyers who need to evaluate proxy quality from a fraud detection perspective. If you are integrating fraud detection into your application and need to identify high-risk IPs, Scamalytics provides the tooling and data to do that. For proxy providers, Scamalytics offers a way to track and manage your IP reputation over time, and for proxy buyers, it provides early warning about whether the IPs you are purchasing are already damaged goods through past abuse. For individual users checking a single proxy, the quick web-based lookup provides instant fraud scoring without requiring setup or API keys, and the results help you decide whether that proxy is worth using before it has a chance to damage your own reputation.