Key Pinning) Test

Check if your site is using HPKP header
to defend fraudulent certificate attack

Checking for the HPKP header...

Tested from     on  

Great! HPKP header was found
in the HTTP response headers as highlight below.

Couldn’t find the HPKP header
in the response headers.

Header Value



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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