Low-Hanging Web Performance Fruits: A Cheat Sheet

Here's the situation you've probably been in already: you join a new project and soon notice the page load speed is… underwhelming. You might assume it's due to your slow network, but after running a Lighthouse report, you find the score is 20 out of 100. Something is definitely wrong here! When I see something like this, I usually have a real urge to fix it. Besides, sometimes it's a nice way to get acquainted with the project as you inevitably go through a lot of code when doing it. Now, what's important is that performance optimizations are a real rabbit hole, and there's almost always something else that can be optimized. The Pareto principle applies here perfectly: a set of things can be done relatively easily, but they can have a meaningful impact.