How to profile Javascript now that JSPerf is down? [closed]

function test1() {

}

function test2() {

}

var cycleResults = document.getElementById('cycleResults');
var result = document.getElementById('result');
var btn = document.getElementById('btn');

// BENCHMARK ====================
btn.onclick = function runTests() {

  btn.setAttribute('disable', true);
  cycleResults.innerHTML = '';
  result.textContent = 'Tests running...';

  var suite = new Benchmark.Suite;

  // add tests
  suite
    .add('test1', test1)
    .add('test2', test2)
    // add listeners
    .on('cycle', function(event) {
      var result = document.createElement('li');
      result.textContent = String(event.target);

      document.getElementById('cycleResults')
        .appendChild(result);
    })
    .on('complete', function() {
      result.textContent = 'Fastest is ' + this.filter('fastest').pluck('name');
      btn.setAttribute('disable', false);
    })
    // run async
    .run({
      'async': true
    });
};

<script src="https://cdnjs.cloudflare.com/ajax/libs/benchmark/1.0.0/benchmark.min.js"></script>
<ul id='cycleResults'>

</ul>
<div id="result">

</div>
<br>
<button id="btn">
Run Tests
</button>