pagespeed.gs.js

function pageSpeed(url) {
  
  url = url || 'http://ctrlq.org/';
  
  var APIkey   = 'XYZ';     // Get the API key from Google Dev Console
  var strategy = 'desktop'; // 'desktop' or 'mobile'
  
  var api = 'https://www.googleapis.com/pagespeedonline/v1/runPagespeed?url=' 
                + url + '&key=' + APIkey +  '&strategy=' + strategy;
  
  var response = UrlFetchApp.fetch(api, {muteHttpExceptions: true });
  
  var parsedResult = JSON.parse(response.getContentText());
  var pageSpeedResults = {};
  
  pageSpeedResults['score'] = parsedResult.score;
  
  var pageStats = ['numberResources', 'numberHosts', 'totalRequestBytes', 
                   'numberStaticResources', 'htmlResponseBytes', 'cssResponseBytes', 
                   'imageResponseBytes', 'javascriptResponseBytes', 
                   'otherResponseBytes', 'flashResponseBytes','textResponseBytes', 
                   'numberJsResources', 'numberCssResources'];
  
  for (var i=0; i < pageStats.length; i++) {
    pageSpeedResults[pageStats[i]] = parsedResult.pageStats[pageStats[i]];
  }
  
  return(pageSpeedResults);
 
}