How do you collect site uptime and usage metrics?

by Peter Shi

Hi IH's

Michael Seibel (https://youtu.be/C27RVio2rOs?t=1678) mentions that adding site activity monitoring early in your startup journey is important.
He mentions options incl. Mixpanel, Amplitude, and Heap.
Searching Google for options returns dozens more.

I'm currently working on www.hearino.com, a B2C audiobook site built on React TS, client-side rendered SPA, Netlify to build/deploy, with Amazon S3 + Cloudflare to host large media files.
It currently has zero monitoring.

Curious if IH has suggestions on what I should use for monitoring both site status and usage stats.

As an aside, AMA if you have questions about learning to code or starting a biz. I have 18 months experience in that since leaving the comfort of corporate life :)

Edit: Answering my own question, trying Mixpanel for now. Decent free-tier allowing you to measure 5 metrics e.g. unique visits by country. $25 p.m. to upgrade 1 tier. Took about 2 hrs to learn and implement what I wanted.
Tip: start 2 projects, one for dev/test and one for production so testing doesn't pollute prod metrics.

Cheers,