IP for domain is assigned as 165.227.81.80

Created hello.js file as follows:

var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(8080, 'localhost');
console.log('Server running at http://localhost:8080/');

and started with command "node hello.js"

server starts at 8080

Entering URL: http://165.227.81.80:8000 gets error:

Site cannot be reached
165.227.81.80 refused to connect.

How should I fix this? Help please!