ITHCWY: Robert Ellison's Blog

Get an email if your site stops being mobile friendly

Get an email if your site stops being mobile friendly

Google just released an API for the mobile friendly test and so I've whipped up a script to send an alert if a web page violates their guidelines. This will run the test as often as you like and send you an email if it detects a problem. Alternatively if you're not mobile friendly it will keep emailing you until you fix any problems which might be a good motivational tool.

First start a new apps script project in drive and paste in the code below:

var urlToMonitor = '';
var alertEmail = '';
var runTestKey = '';

var runTestUrl = '';

function mobileFriendlyMonitor() {
  try {
    var postBody = {
      'url' : urlToMonitor
    var options = {
      'method' : 'post',
      'contentType': 'application/json',
      'payload' : JSON.stringify(postBody)
    var response = UrlFetchApp.fetch(runTestUrl + runTestKey, options);
    var json = response.getContentText();
    var mobileFriendlyResult = JSON.parse(json);
    if (mobileFriendlyResult.mobileFriendliness != 'MOBILE_FRIENDLY') {
      sendEmail('Mobile friendly test failed for ' + urlToMonitor + ', check for details');
  } catch (e) {
    sendEmail('mobileFriendlyMonitor failed for: ' + urlToMonitor + ' with error: ' + e.message);

function sendEmail(msg) {
  MailApp.sendEmail(alertEmail, 'Mobile Friendly Monitor Alert on ' + Utilities.formatDate(new Date(), "GMT""yyyy-MM-dd'T'HH:mm:ss'Z'"), msg);

There are three variables you need to set, urlToMonitor is the full URL of the page to test, alertEmail is your email address (or whoever needs to be pestered) and runTestKey is the API key for the service. To get this go to the Google API Console, click Enable API, search for 'Google Search Console URL Testing Tools API' and click enable. Then click the Credentials option and generate a browser key.

Once you've configured the script choose 'Current project's triggers' from the Resources menu in apps script and set up a schedule for the mobileFriendlyMonitor() function.

Automate Google PageSpeed Insights with Apps Script


Here's a quick script to automatically monitor your Google PageSpeed Insights desktop and mobile scores for a web page:

var pageSpeedApiKey = '...';
var pageSpeedMonitorUrl = '...';

function monitor() {
  var desktop = callPageSpeed('desktop');
  var mobile = callPageSpeed('mobile');
  var spreadsheet = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = spreadsheet.getSheetByName('results');
                   Utilities.formatDate(new Date(), 'GMT', 'yyyy-MM-dd'),
    // more available, i.e. desktop.pageStats.numberResources

function callPageSpeed(strategy) {
  var pageSpeedUrl = '' + pageSpeedMonitorUrl + '&key=' + pageSpeedApiKey + '&strategy=' + strategy;
  var response = UrlFetchApp.fetch(pageSpeedUrl);
  var json = response.getContentText();
  return JSON.parse(json);

You need a spreadsheet with a tab called results and an API key for PageSpeed Insights (activate the API in the console and create an API key for it, the browser based / JavaScript option). Paste the code above into the script editor for the spreadsheet and add your API key and URL to monitor. Then just choose triggers from the Resources menu and schedule the monitor function to run once per day.

Note that this currently just logs the overall score. There are a bunch of other values returned (like number and types of resources on the page) that you could choose to monitor as well. It would also be easy to extend this to monitor more URLs, or to send you an email if the score drops below a threshold.