The IESG has received a request from the Hypertext Transfer Protocol WG (httpbis) to consider the following document: - 'Expect-CT Extension for HTTP' <draft-ietf-httpbis-expect-ct-07.txt> as Experimental RFC The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2018-08-14. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract This document defines a new HTTP header field, named Expect-CT, that allows web host operators to instruct user agents 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 deployments and ensure that misissued certificates accepted by UAs are discoverable in Certificate Transparency logs. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-httpbis-expect-ct/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-httpbis-expect-ct/ballot/ No IPR declarations have been submitted directly on this I-D.