Learn basic and advanced uses of WebPageTest, the performance measurement tool for optimizing websites, written by @rick_viscomi @andydavies and @marcelduran

Joined February 2015
Practical advice from @addyosmani to measure the impact of your JavaScript: run tests on real mobile devices on WebPageTest. Read more 👉 dev.to/addyosmani/the-state-…
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You can now see your @____lighthouse score directly on your WPT results page! 🎉 webpagetest.org/result/17032…
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iPhone6 test agent has a long backlog of tests. Try the 5c agent for faster results. Or better yet, try rolling your own mobile test agent!
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Replying to @kaihendry
there's a WPT agent physically located in India and 2G is a preconfigured connection profile. See screenshot for configuration.
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Replying to @tkadlec
@tkadlec oh hey look at those nice quotes on the back! cc @igrigorik @lara_hogan
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#VelocityConf come grab yourselves an autographed copy of these fine books and meet these equally fine authors!
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WPT is @bluesmoon and @nicj 's #1 web perf forensics tool at #VelocityConf
@ckoerner you could block unwanted resources from the test by using the Block advanced tab