Table Of Contents Introduction Boomerang Loader Snippet Improvements ResourceTiming Compression Optimization Debug Messages Minification Cookie Size Cookie Access MD5 plugin SPA plugin Brotli Performance Test Suite Next Boomerang is an open-source JavaScript library that measures the page load experience of real users, commonly called RUM (Real User Measurement). Boomerang is used by thousands of websites […] The post Boomerang Performance Update first appeared on NicJ.net.