Web Traffic monitoring after Flask app deployed on VPS with Nginx and GUnicorn

Hello there,

I successfully deployed a Dash app on a VPS with NGinx and Gunicorn, but I’m now interested in knowing how the webApp is used.
That is, I’m looking for the log files, which could let me check what the readers’ IPs are, how long people stay on the pages, and what are the most common screen sizes.

It’s not directly related to Dash, maybe more to NGinx itself; I already checked on Google but I didnt exactly find what I was looking for; there is an error.log file, as well as an access.log file in /var/log/nginx, but informations I am looking for dont seem to be included in these files.

Not sure it’s the right place to ask this, but does someone has any clue about this ?