Expect-CT Extension for HTTP
RFC 9163

Received changes through RFC Editor sync (created alias RFC 9163, changed abstract to 'This document defines a new HTTP header field named "Expect-CT", which allows web host operators to instruct user agents (UAs) to expect valid Signed Certificate Timestamps (SCTs) to be served on connections to these hosts.  Expect-CT allows web host operators to discover misconfigurations in their Certificate Transparency (CT) deployments.  Further, web host operators can use Expect-CT to ensure that if a UA that supports Expect-CT accepts a misissued certificate, that certificate will be discoverable in Certificate Transparency logs.', changed pages to 18, changed standardization level to Experimental, changed state to RFC, added RFC published event at 2022-06-07, changed IESG state to RFC Published)