Great! HPKP header was found
in the HTTP response headers as highlight below.
Couldn’t find the HPKP header
in the response headers.
About HTTP Public Key Pinning Header
HPKP is a security header which aims to reduce the MITM (man-in-the-middle) attack by pinning the certificates.
You may refer this Mozilla guide to know about the implementation procedure. Once done with the configuration, use HPKP header tool to verify.
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