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The "Lighthouse Exercise" Lesson is part of the full, Web Performance Fundamentals course featured in this preview video. Here's what you'd learn in this lesson:

Students are instructed to generate a Lighthouse report for each website in the Performance Comparison worksheet and record the FCP, LCP and CLS values.

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Transcript from the "Lighthouse Exercise" Lesson

>> We're gonna take a look at putting some objective measurements on these same websites. So what I want you to do is go to the Exercise 2 tab on that same google sheet that I gave you before. And we are going to run chrome lighthouse on each of these four sites.

[00:00:22] And what I want you to do is I want you to record the first contentful paint, largest contentful paint and cumulative layout shift that score that you see for each of the four websites. Remember, opened them up in an incognito window so it doesn't know who you are.

[00:00:39] Run the site run the lighthouse report. They'll take 30 seconds or so per site and record your scores. And then we're going to come back and we're going to talk about how these related.