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That one website that tests how fast a web page loads

Why it's the pick

Paste a URL and Google's PageSpeed Insights runs a Lighthouse test on simulated mobile and desktop. Where Chrome has enough data, it also shows real-visitor Core Web Vitals, and it lists specific fixes. Free, with no account.

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2 good alternatives

WebPageTest webpagetest.org Real-browser tests from many locations, with filmstrip Free tierSignup optional Link checked Oct 1 DebugBear Website Speed Test debugbear.com Free test that shows the page loading step by step Free tierSignup optional Link checked Oct 1

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