You can check a port like this, saves a few round trips on a good day.
$ dstp google.com --port 80 Ping: 27.44ms DNS: resolving 216.58.212.14 SystemDNS: resolving 2a00:1450:4017:804::200e, 142.250.187.174 TLS: certificate is valid for 64 more days HTTPS: got 200 OK
You can check a port like this, saves a few round trips on a good day.
[0]: https://github.com/ycd/dstp#motivation