> Load show_ads.js asynchronously ... well why not tell me to do that up front rather than after the fact in PageSpeed? Google is a huge company and not every

> Load show_ads.js asynchronously ... well why not tell me to do that up front rather than after the fact in PageSpeed? Google is a huge company and not every team has the same priorities is the most likely answer. It's not realistic to expect they're going to optimise the loading speed of literally everything they release. Web best practice checks will always have some degree of false positives as well as websites are so complex. I wrote my own Chrome extension that checks websites for best practices (https://www.checkbot.io https://www.checkbot.io) and had to weigh up how generally useful a test was compared to its typical false positives rate. The website for the product does pass the vast majority of the tests though, but I've only got a single website to manage compared to Google. > Eg: https://gtmetrix.com/reports/alicious.com/RyJ575Jd https://gtmetrix.com/reports/alicious.com/RyJ575Jd By the way, isn't some of this advice outddated? "This page has 25 external Javascript scripts. Try combining them into one." "This page has 3 external stylesheets. Try combining them into one." This is obsolete with HTTP/2 because files can be downloaded in parallel. Combining the files will also increase the weight of pages that don't need every file.