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Lighthouse https://developers.google.com/web/tools/lighthouse/

and

Puppeteer https://github.com/GoogleChrome/puppeteer

Lighthouse results seem random, got three widely different results for the same website. I would expect the results to vary slightly (taking into account the time it takes to receive the requests, server load, congestion and whatnot), but I also has a feeling that the time to first paint and time to load are impacted by current load on the machine running the Chrome running the Lighthouse tests or something.

Am I alone in observing this?

I'd love to investigate what's going on with your results. Could you save the results from a few runs and share them in a github issue?

> I also has a feeling that the time to first paint and time to load are impacted by current load on the machine

This is certainly true of any performance test. But it shouldn't be a significant problem unless you're multitasking during recording.

I'll see what I can do about reproducing the issue.

Is that puppeteer is similar to Selenium framework that is used for automation? Am I missing something here?

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