Check if an IP is high risk helps prevent cybercriminal activity from impacting websites and services. This ensures better user experience, reduces server load and enhances website performance. It also helps protect against fraud and abuse, such as bot traffic, bonus abuse, multi-accounting and payment fraud. This is achieved through a combination of IP reputation services that look at the history, association and online behavior of an IP address. This information can then be used to identify potentially harmful users and prevent them from accessing your web servers, email systems or e-commerce sites.

How to Check If an IP Is High Risk Before Granting Access

An IP’s security risk is based on its online behavior, including whether it has been involved in spamming, phishing or other malicious activities. Other factors include its reputation score, whether it has a high-risk neighborhood (e.g., Tor network exit nodes, proxies or VPNs), and whether it is listed on real-time block lists.

The number and variety of devices associated with an IP is another important factor in assessing its security risk. For example, a device with an inordinate number of different associated identities can indicate that multiple devices are being used by the same person or group of people for fraudulent purposes.

In addition, an IP’s reputation can be impacted by whether it is credibly reported for fraud or suspicious activity and whether it is involved in large-scale Distributed Denial of Service attacks, malware distribution, or port scanning. The IP’s involvement in these types of activities can result in it being listed on real-time block lists, spam databases or being flagged for spam by email filters or a site owner’s security policy.