Day 1: Birthday Week

Encrypted Server Name Indication (SNI)

How private is your browsing history? Learn how Cloudflare is fixing one of the core Internet bugs.

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Day 1: Birthday Week

How Encrypted SNI Works

Learn how encrypted SNI protects your privacy by preventing the hostnames of sites you visit from being tracked by anyone listening on the Internet.

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Day 1: Birthday Week

Browser Experience Security Checker

How secure and private is your browsing experience? This page automatically tests for four areas of security.

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