HTTP compression is a well-known web server configuration, but you can reach enormous benefit by switching to brotli. And pre-compressing offline.
How a common companion like Google Analytics can mess up your preload performance boost.
Using a "preload" link can be the Holy Grail for boosting performance on some applications, but enabling it is not so straightforward.
A story about how I moved away from a legacy (and expensive) mess of hosting service keeping some historical contents. And save €€€.