HTTP/1.1 200 OK <?xml version="1.0" encoding="UTF-8"?> <GetHealthCheckResponse xmlns="https://route53.amazonaws.com/doc/2012-12-12/">    <HealthCheck>       <Id>abcdef11-2222-3333-4444-555555fedcba</Id>       <CallerReference>example.com 192.0.2.17</CallerReference>       <HealthCheckConfig>          <IPAddress>192.0.2.17</IPAddress>          <Port>80</Port>          <Type>HTTP</Type>          <ResourcePath>/docs/route-53-health-check.html</ResourcePath>          <FullyQualifiedDomainName>example.com</FullyQualifiedDomainName>       </HealthCheckConfig>    </HealthCheck> </GetHealthCheckResponse>