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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ head:
content: Issue certificates
---

import { Render } from "~/components";
import { Render, GlossaryTooltip } from "~/components";

Cloudflare automatically issues certificates when you [create a custom hostname](/cloudflare-for-platforms/cloudflare-for-saas/domain-support/create-custom-hostnames/).

Expand All @@ -20,9 +20,9 @@ There are several required steps before a custom hostname and its certificate ca

## Certificate authorities

If you create the custom hostname via API, you can leave the `certificate_authority` parameter empty to set it to “default CA”. With this option, Cloudflare checks the CAA records before requesting the certificates, which helps ensure the certificates can be issued from the CA.
If you create the custom hostname via API, you can leave the `certificate_authority` parameter empty to set it to “default CA”. With this option, Cloudflare checks the <GlossaryTooltip term="Certification Authority Authorization (CAA) record">CAA records</ GlossaryTooltip> before requesting the certificates, which helps ensure the certificates can be issued from the CA.

Refer to [this certificate authorities reference page](/ssl/reference/certificate-authorities/) to learn more about the CAs that Cloudflare uses to issue SSL/TLS certificates.
Refer to [this certificate authorities reference page](/ssl/reference/certificate-authorities/) to learn more about the CAs that Cloudflare uses, or to [Troubleshooting](/cloudflare-for-platforms/cloudflare-for-saas/security/certificate-management/issue-and-validate/validate-certificates/troubleshooting/#certificate-authority-authorization-caa-records) for specific guidance.

## Certificate details and compatibility

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