@misc{rfc9163, series = {Request for Comments}, number = 9163, howpublished = {RFC 9163}, publisher = {RFC Editor}, doi = {10.17487/RFC9163}, url = {https://www.rfc-editor.org/info/rfc9163}, author = {Emily Stark}, title = {{Expect-CT Extension for HTTP}}, pagetotal = 18, year = 2022, month = jun, abstract = {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.}, }