Wondering which framework is most likely to produce the fastest loading websites? Google collects performance information from all sessions on opted-in Chrome browsers into its Chrome User Experience Report (CrUX) database. It then uses this information as a ranking signal for its search engine, but it also makes this information available for everyone to view. I used this data to analyze and compare the performance of the leading JavaScript frameworks. Along the way I encountered several surprising results, and solved at least one mystery. See how your favorite framework ranks vs all the rest!