In my last post “Deploying TLS the hard way” I explained how TLS and its extensions (as well as a few HTTP extensions) work and what to watch out for when enabling TLS for your server. One of the HTTP extensions mentioned is HTTP Public-Key-Pinning (HPKP). As a short reminder, the header looks like this
more here........https://timtaubert.de/blog/2014/10/http-public-key-pinning-explained/
more here........https://timtaubert.de/blog/2014/10/http-public-key-pinning-explained/