We rendered a million web pages to find out what makes the web slow

TLDRWe rendered a million web pages to find out what makes the web slow. To our knowledge, this produces the first dataset that connects performance, errors, and library use on the web. We published the dataset to Kaggle, so you can crunch the numbers yourself.

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Table of contents
Why render a million web pages?Overall numbersWhat makes the web slow: Predicting time-to-interactiveWhat is the effect of HTTP protocol version on dominteractive?What is the effect of type of content on dominteractive?TakeawaysLibrariesTop 10 libraries by usagePredicting time-to-interactive from library useThe best and the worst libraries for time-to-interactive, by regression coefficientsThe best and the worst libraries for onload time, by regression coefficients
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