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phantomas

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Headless Chromium-based web performance metrics collector and monitoring tool

github.com/macbre/phantomas

macbre/phantomas

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/** * Analyzes DOM changes via MutationObserver API */ "use strict"; module.exports = (phantomas) => { // @see http://dev.opera.com/articles/mutation-observers-tutorial/ phantomas.setMetric("DOMmutationsInserts"); // @desc number of <body> node inserts @offenders phantomas.setMetric("DOMmutationsRemoves"); // @desc number of <body> node removes @offenders phantomas.setMetric("DOMmutationsAttributes"); // @desc number of DOM nodes attributes changes @offenders };