Google Analytics and Search Console
For those not familiar with Google Analytics and Google Search Console. Here is a little introduction. Google Analytics helps track events in your app/website. Google Search Console helps measure search traffic. With both, you can gather and interpret user behaviour.
Both tools are pretty easy to set up. Google Analytics has easy instructions on how to set it up. It gets a little tricky when you want to set it up in, say, React. Quick tip, purchase your domain with Google. With a few clicks, you can set up Google Search Console without the regular steps involved.
Get better insights
With both tools connected or associated with each other, the possibilities are endless. These free tools are mush-haves in understanding your users better, from tracking Core Web Vitals to User Journeys.