Here is a Benchmark tool
https://vdom-benchmark.github.io/vdom-benchmark/
where you can input this "Custom URL": https://vdom-benchmark.github.io/vdom-benchmark-maquette/
then open the Dev Tools and Run.
But looks like it fails tests, add '&test' to the URL in the new window.
Source: https://twitter.com/andrestaltz/status/770307344513306624