However, the Internet is full of bad actors, and distinguishing legitimate traffic from malicious traffic, which is one of Cloudflare’s core features, becomes much more difficult when the traffic is anonymous. Fortunately, the Tor Project addresses this extensive adversary model in Tor Browser.
Indeed, back in the old days some websites only used HTTP - weird, right? “Opportunistic” here meant that the server advertised support for HTTP/2 via an HTTP Alternative Service header in the hopes that any browser that recognized the protocol could take advantage of those benefits in subsequent requests to that domain.Īround the same time, CEO Matthew Prince wrote about the importance and challenges of privacy on the Internet and tasked us to find a solution that provides convenience, security, and anonymity.įrom neutralizing fingerprinting vectors and everyday browser trackers that Privacy Badger feeds on, all the way to mitigating correlation attacks that only big actors are capable of, guaranteeing privacy is a complicated challenge. Two years ago this week Cloudflare introduced Opportunistic Encryption, a feature that provided additional security and performance benefits to websites that had not yet moved to HTTPS.
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