Health check in route53 by port

Hi, Good question

You could probably use the following

Health checks that monitor an endpoint

You can configure a health check that monitors an endpoint that you specify either by IP address or by domain name. At regular intervals that you specify, Route 53 submits automated requests over the internet to your application, server, or other resource to verify that it's reachable, available, and functional. Optionally, you can configure the health check to make requests similar to those that your users make, such as requesting a web page from a specific URL

More info at https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/health-checks-types.html