Web proxy software forwards HTTP requests without modifying traffic in any way. They can be configured as a transparent proxy with no client-side configuration required. They can also be used as a reverse proxy front-end to websites; here the cache serves an unlimited number of clients for one or some web servers.
Web proxies are versatile tools. They have a wide variety of uses, from caching web, DNS and other lookups, to speeding up the delivery of a web server / reducing bandwidth consumption. Web proxy software can also harden security by filtering traffic and anonymizing connections, and offer media-range limitations. This software is used by high-profile, high-traffic websites such as The New York Times, The Guardian, and social media and content sites such as Twitter, Facebook, and Wikipedia.
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