find google ads with phantomjs

gistfile1.js

var page = require('webpage').create();
page.settings.loadImages = false;
page.onConsoleMessage = function(msg) { console.log(msg); };

page.onLoadFinished = function() {
    page.evaluate(function() {
        var getFrames = function(doc) {
            var frames = doc.querySelectorAll('iframe');
            for (var i = frames.length - 1; i >= 0; i--) {
                var fdoc = frames[i].contentWindow.document;

                if (!fdoc) {
                    console.log('please add "--web-security=no" to phantomjs(1.5.0 and above) command-line and try again\n');
                    return;
                }

                if (/googleads/.test(frames[i].src)) {
                    console.log('found google ads: \n' + (fdoc.body.innerText || fdoc.querySelector('img').src + '\n'));
                } else {
                    getFrames(fdoc);
                }
            }
        };
        getFrames(document);
    });
    phantom.exit();
};

page.open(phantom.args[0]);