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Version history for TLS/SSL support in web browsers tracks the implementation of Transport Layer Security protocol versions in major web browsers. TLS/SSL support history of web browsers Browser
Internet Explorer 11 added support for SPDY version 3, [49] [50] but not for the Windows 7 version. [51] A problem experienced by some users of Windows 8.1 and Internet Explorer 11 is that on initial loading, Google says "Page not found" but on reloading, it is fine. One fix for this is to disable SPDY/3 in Internet Options > Advanced. [52]
Transport Layer Security (TLS) is a cryptographic protocol designed to provide communications security over a computer network, such as the Internet.The protocol is widely used in applications such as email, instant messaging, and voice over IP, but its use in securing HTTPS remains the most publicly visible.
HTTP/2 allows the server to "push" content, that is, to respond with data for more queries than the client requested. This allows the server to supply data it knows a web browser will need to render a web page, without waiting for the browser to examine the first response, and without the overhead of an additional request cycle. [14]
A solution called Server Name Indication (SNI) exists, which sends the hostname to the server before encrypting the connection, although older browsers do not support this extension. Support for SNI is available since Firefox 2, Opera 8, Apple Safari 2.1, Google Chrome 6, and Internet Explorer 7 on Windows Vista. [41] [42] [43]
• Restore your browser's default settings in Chrome. While Internet Explorer may still work with some AOL products, it's no longer supported by Microsoft and can't be updated. Because of this, we recommend you download a supported browser for a more reliable and secure experience.
Moreover, if the client fails to connect to the CA for an OCSP response, then it is forced to decide between: (a) continuing the connection anyway; defeating the purpose of OCSP or (b) terminating the connection based on the assumption that there is an attack; but which could result in excessive false warnings and blocks.
The publishing of TLS 1.3 and DTLS 1.3 obsoleted TLS 1.2 and DTLS 1.2. Note that there are known vulnerabilities in SSL 2.0 and SSL 3.0. In 2021, IETF published RFC 8996 also forbidding negotiation of TLS 1.0, TLS 1.1, and DTLS 1.0 due to known vulnerabilities. NIST SP 800-52 requires support of TLS 1.3 by January 2024.