Use CheckDomainTransferability with an AWS SDK or CLI

    /// <summary>
    /// Check the transferability of a domain name.
    /// </summary>
    /// <param name="domain">The domain to check for transferability.</param>
    /// <returns>A transferability result string.</returns>
    public async Task<string> CheckDomainTransferability(string domain)
    {
        var result = await _amazonRoute53Domains.CheckDomainTransferabilityAsync(
            new CheckDomainTransferabilityRequest
            {
                DomainName = domain
            }
        );
        return result.Transferability.Transferable.Value;
    }

To determine whether a domain can be transferred to Route 53

The following check-domain-transferability command returns information about whether you can transfer the domain name example.com to Route 53.

This command runs only in the us-east-1 Region. If your default region is set to us-east-1, you can omit the region parameter.

aws route53domains check-domain-transferability \
    --region us-east-1 \
    --domain-name example.com

Output:

{
    "Transferability": {
        "Transferable": "UNTRANSFERABLE"
    }
}

For more information, see Transferring Registration for a Domain to Amazon Route 53 in the Amazon Route 53 Developer Guide.

    public static void checkDomainTransferability(Route53DomainsClient route53DomainsClient, String domainSuggestion) {
        try {
            CheckDomainTransferabilityRequest transferabilityRequest = CheckDomainTransferabilityRequest.builder()
                    .domainName(domainSuggestion)
                    .build();

            CheckDomainTransferabilityResponse response = route53DomainsClient
                    .checkDomainTransferability(transferabilityRequest);
            System.out.println("Transferability: " + response.transferability().transferable().toString());

        } catch (Route53Exception e) {
            System.err.println(e.getMessage());
            System.exit(1);
        }
    }

suspend fun checkDomainTransferability(domainSuggestion: String?) {
    val transferabilityRequest =
        CheckDomainTransferabilityRequest {
            domainName = domainSuggestion
        }
    Route53DomainsClient { region = "us-east-1" }.use { route53DomainsClient ->
        val response = route53DomainsClient.checkDomainTransferability(transferabilityRequest)
        println("Transferability: ${response.transferability?.transferable}")
    }
}