# Support for HPKP - HTTP Public Key Pinning?

**URL:** <https://community.letsencrypt.org/t/support-for-hpkp-http-public-key-pinning/504>\
**Category:** Issuance Tech\
**Created:** [August 26, 2015, 2:19am UTC](https://community.letsencrypt.org/t/support-for-hpkp-http-public-key-pinning/504 "2015-08-26T02:19:00Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![rugk](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/rugk/32/19612_2.png) [@rugk](https://community.letsencrypt.org/u/rugk)\
**Post date:** [February 7, 2016, 9:27pm UTC](https://community.letsencrypt.org/t/support-for-hpkp-http-public-key-pinning/504/10 "2016-02-07T21:27:20Z")

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It is not that easy, e.g. because LE also has a backup root CA.  
If you want to have a robust (failsafe) HPKP header I'd recommend you this official "Best practises":

> [@HPKP best practices if you choose to implement](https://community.letsencrypt.org/t/hpkp-best-practices-if-you-choose-to-implement/4625):
>
> H…

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