To help you roll out a stricter form of SSL, Chrome 46 ships with a feature called HPKP reporting. HPKP reporting, shipping in Chrome 46, is a feature that you can use to detect misconfigurations as you're rolling out HPKP. An HPKP violation report is a JSON message sent in an HTTP POST request to your configured report-uri . One last "gotcha"If you're deploying HPKP reporting, remember that Chrome does pin validation for all requests—including report-sending requests. Otherwise, a pin violation on your site will trigger a report to the same domain, which will also fail pin violation, and thus you will not receive the report.