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Browser Fingerprinting

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I've just been pointed at the Panopticlick by the Electronic Frontier Foundation. The site is attempting to build a fingerprint on your browser over publicly available informations. Some are derived from the transmitted HTTP headers (such as User-Agent and Accept,) others are collected via JavaScript (like screen resolution, plugin collection and installed fonts.) It's quite interesting: …

HTTP Output Compression at Application Level

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HTTP has got a nice yet hardly known feature: Content can be compressed just before being sent to the client. This is quite interesting as HTML can be compressed quite well since it is mostly text, so one can expect savings by 60 - 70% on average.