HTTP Public Key Pinning (HPKP) allows websites to send an HTTP header that pins one or more of the public keys present in the site’s certificate chain. This feature tracks the implementation of HPKP reporting, which allows website owners to receive reports when the browser detects HPKP violations.



Specification link

Final published standard: Recommendation, Living Standard, Candidate Recommendation, or similar final form

Status in Chromium


Enabled by default (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • No signal
  • No signal
  • No signals


Search tags

HPKP, Public Key Pinning,

Last updated on 2020-11-09