rmr-lib

A well-tested & well-documented library of code for working with internet metadata:

const
  RMR = require('rmr-lib'),
  mime = RMR.mime.fromPath('script.js')), // 'text/javascript'
  ext = RMR.mime.extensionFor('application/json'), // 'json'
  isURL = RMR.url.isA('https://google.com'), // true 
  RMR.meta.retrieve('http://readmeansrun.com').then(function(data) {
    /*{
      "bytes" : 294,
      "url" : "https://readmeansrun.com",
      "mime" : "text/html",
      "title": "READMEANSRUN",
      "keywords": "rmr",
      "description": "READMEANSRUN makes websites and takes pictures",
      "apple-touch-icon": {
        "mime": "image/png",
        "url": "https://readmeansrun.com/apple-touch-icon.png"
      },
      "og" : {
        "title": "READMEANSRUN",
        "email": "davidfmiller@me.com",
        "description": "READMEANSRUN makes websites and takes pictures",
        "image": {
          "mime": "image/png",
          "url": "https://readmeansrun.com/assets/img/og-image.png"
        }
      },
      "favicon": {
        "mime": "image/x-icon",
        "url": "https://readmeansrun.com/favicon.ico"
      }
    }*/
  }).catch(function(err)) {
    console.log('🚫', err);
  };

View the inline documentation for more info.