They often sell your browsing data to third parties to cover their costs.
Modern web filters use machine learning algorithms to scan new domains in real-time. If a new proxy site springs up, an AI filter can analyze its layout and metadata, categorizing and blocking it within minutes of its creation. Implications for Digital Privacy and Security
A Virtual Private Network (VPN) is the gold standard for bypassing blocks. Unlike a web proxy, which only works inside one browser tab, a VPN encrypts your entire device's internet connection.