We are investigating an issue with provisioning HTTPS certificates.

Jan 15, 18:11 PST
Resolved – This incident has been resolved.

Jan 15, 15:04 PST
Monitoring – A fix has been implemented and we are monitoring the results.

Jan 15, 14:55 PST
Identified – The issue has been identified and a fix is being implemented.

Jan 15, 14:37 PST
Investigating – A small number of sites have reported delays in HTTPS provisioning. We are actively investigating the issue.

Source: http://status.pantheon.io/history.rss