url-is-private 

> Check whether or not a url hostname refers to a private IP

Setup

``shell
npm install url-is-private
`

Usage

#### isPrivate(hostname: {String}, f: (err : {Error,Null}, isPrivate: {Boolean}))

`javascript
var isPrivate = require('url-is-private').isPrivate;

isPrivate('http://127.0.0.1.xip.io', function(err, isPrivate){
console.log(err === null, isPrivate == true);
});

isPrivate('myprotocol://auth@localhost', function(err, isPrivate){
console.log(err === null, isPrivate === true);
});

isPrivate('https://google.com', function(err, isPrivate){
console.log(err === null, isPrivate === false);
});
`

#### isPrivateIncludingPublicIp(hostname: {String}, f: (err : {Error,Null}, isPrivateIncludingPublicIp: {Boolean}))

`javascript
var isPrivateIncludingPublicIp = require('url-is-private').isPrivateIncludingPublicIp;

isPrivateIncludingPublicIp('YOUR-PUBLIC-IP.xip.io', function(err, isPrivate){
console.log(err === null, isPrivate == true);
});

isPrivate('http://ok:ok@localhost.xip.io:293/', function(err, isPrivate){
console.log(err === null, isPrivate === true);
});

isPrivate('http://google.com/', function(err, isPrivate){
console.log(err === null, isPrivate === false);
});
``

How it works

url-is-private uses hostname-is-private underneath.

Changelog