One little-known feature of WebPagetest is the ability to troll through the latest publicly accessible test results. Seeing so many results fly by gives reassurance that so many people are utilizing the tool, but it quickly subsides to horror as the long, slow tail of the web comes into view.
Have you ever seen what a page with the worst possible grade of FFFFFX looks like? It’s bad. Real bad. But you may be surprised to learn that even the better-scoring web pages can have more egregious deviations from the best practices we know and love.
Examining all of these results presents a unique opportunity to learn from others’ real world examples of what not to do.
Rick Viscomi is a front end engineer focused on web performance, currently working at Google on the YouTube team.
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