Identify proxy and VPN usage with IP analysis
VPNs (Virtual Private Networks) and proxies (web proxy servers) are popular tools for users to protect their privacy, access restricted content or hide their online activities. However, they are also often used by fraudsters and cybercriminals to mask their identity and commit nefarious activities. For this reason, it is critical that websites detect the use of proxies and VPNs effectively to mitigate risks such as website attacks, hacking, data breaches and fraudulent transactions.
Identify proxy and VPN usage with IP analysis or proxy is possible by using various techniques that include analysing DNS requests, analysing protocol metadata and comparing timezone differences between the browser timezone settings reported by the user’s web browser with the IP address geolocation. These types of discrepancies are a strong indicator that the user is hiding their true location with a VPN or proxy service.
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Another technique involves comparing the IP address of the connecting device with known database lists of proxies and VPNs, as well as identifying IPs that are associated with data centres. Some services like ScreenlyyID enable businesses to cross-reference an IP address with databases of known VPN and proxy IP ranges to identify suspicious users. This type of identification can help businesses to reduce risk, improve compliance and enhance security and content filtering. This is also a crucial tool for ad tech companies to reduce click fraud and optimize ad delivery, while maintaining the integrity of user data.
