certificateTransparencyLoggingPreference - You can opt out of certificate transparency logging by specifying the disabled option.
Opt in by specifying enabled . For more information, see Certificate Transparency Logging in the AWS Certificate Manager User Guide .
validationTokenHost - Specify how the HTTP validation token will be served when requesting the CloudFront managed ACM certificate.
For cloudfront , CloudFront will automatically serve the validation token. Choose this mode if you can point the domain's DNS to CloudFront immediately.
For self-hosted , you serve the validation token from your existing infrastructure. Choose this mode when you need to maintain current traffic flow while your certificate is being issued. You can place the validation token at the well-known path on your existing web server, wait for ACM to validate and issue the certificate, and then update your DNS to point to CloudFront.