Is this a valid method to detect Proxies?

Posted on November 26, 2021 in Security • Tagged with proxy, proxy-detection, bot-detection, proxy-provider, anti-scraping • 8 min read

I (maybe) found another method to detect browsers that route their traffic through SOCKS/HTTP proxies. What do you think? Is this a valid method to detect Proxies? I need your help!


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7 different ways to detect Proxies

Posted on October 16, 2021 in Security • Tagged with proxy, proxy-detection, bot-detection, proxy-provider, anti-scraping • 14 min read

In this blog post, I demonstrate 7 different efficient ways how to detect a proxy server when the client is visiting a web server with a browser that has a proxy / VPN configured.


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Detecting Proxies and VPN's with Latency Measurements

Posted on June 07, 2021 in Security • Tagged with proxy-detection, anti-scraping • 10 min read

VPN's and Proxy Servers can be detected by comparing latencies measured with JavaScript in the browser with the corresponding latency of the TCP/IP handshake on the server.


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Detecting Datacenter and Residential Proxies

Posted on April 24, 2021 in Security • Tagged with Proxy Detection • 7 min read

Detecting proxys can't be that hard? Can it?


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