Wait, are you replying to a guide on FE performance, completely ignoring the content, to say nothing is being said on FE performance and then promote your own stuff??
I removed my links although I think they're complementary to the article.
I wrote an article about front-end optimization here: https://blog.pagecheck.app/2020/01/22/5-optimizations-to-mak...
I'm building a front-end site monitoring tool here: https://pagecheck.app