> For the complete documentation index, see [llms.txt](https://doc.peeringhub.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.peeringhub.io/guides/faq.md).

# FAQ

## Getting 405 Error with  <https://stica.peeringhub.io/acme/cert/8181995B4287422A83FF5D9C15D1A8A2>

This URL is returned in the create new order API of ACME server.  It is not a certificate URL on Peeringhub's CR ( Certificate Repository ).  This link can only be accessed via ACME protocol and only through the ACME client with their public key.  They cannot simply download it using unsigned GET request.  Your Stir/Shaken certificate must be hosted in a CR ( certificate repository )

ACME protocol doesn't support certificate hosting we also provide certificate repository free of charge to host your certificate.&#x20;