Check if sitelinks are broken : Adwords account level script

Sitelinks Check ( Account Level)

// Title : SiteLink 404 Checker Account Level for Mcc level : https://goo.gl/P0SKk3
// Author : Vincent Hsu @suisseo
// Website : http://www.suisseo.ch/en
// Checks sitelinks in campaigns and adgroups with at least 1 impression during the last 30 days
// Broken links are simply logged in the adwords console. An e-mail is sent to you when the script is executed.

//You should add your e-mail here.
var emailAlert= "youremail@yourdomain.com";

function main() {
    checkSiteLinks();
    sendSimpleTextEmail();
}

function checkSiteLinks() {
    var urlArray = new Array();
    var badUrlArray = new Array();
    var account = AdWordsApp.currentAccount();
    var sitelinkSelector = AdWordsApp.extensions().sitelinks();
    var sitelinkIterator = sitelinkSelector.get();
    while (sitelinkIterator.hasNext()) {
      var sitelink = sitelinkIterator.next();
      checkAndAdd(sitelink.urls().getFinalUrl(), urlArray);
      checkAndAdd(sitelink.urls().getMobileFinalUrl(), urlArray);
    }
    checkUrlArray(urlArray, badUrlArray)
    printArr(badUrlArray, account.getName());
}

// check if url is already in the array and add it if not
function checkAndAdd(url, arr) {
    if (url !== null) {
        var found = arr.some(function(el) {
            return el === url;
        });
        if (!found) {
            arr.push(url);
        }
    }
}

// Log a 1 dimensional array
function printArr(arr, accountName) {
    Logger.log(accountName + ' : Checking SiteLinks...');
    for (i = 0; i < arr.length; i++) {
        Logger.log(arr[i]);
    }
    if (arr.length == 0) {

        Logger.log('Everything seems ok for this Account');
    }
}

// Check if url is valid 
//(if you think 301 and 302 should be reported just change the condition)
//arr is the array to test , badarr is the array used to store invalid urls
function checkUrlArray(arr, badarr) {
    for (i = 0; i < arr.length; i++) {
        var response = UrlFetchApp.fetch(arr[i], {
            muteHttpExceptions: true
        });
        if (response.getResponseCode() == 302 || response.getResponseCode() == 301 || response.getResponseCode() == 200) {
            //ok so do nothing
        } else {
            checkAndAdd(arr[i], badarr)
        }
    }
}

//send e-mail
function sendSimpleTextEmail() {
    MailApp.sendEmail(emailAlert,
        'Site links were checked',
        'Please log in adwords to check any broken urls found');
}