# TlsSubscriptionDataAttributes
## Properties
**certificate_authority** | Option<**String**> | The entity that issues and certifies the TLS certificates for your subscription, either `certainly`, `lets-encrypt`, or `globalsign`. To migrate the subscription from one certificate authority to another, such as to migrate from 'lets-encrypt' to 'certainly', pass `certificate_authority` to the PATCH endpoint. To migrate from 'globalsign' to 'certainly', contact Fastly Support. |
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