Do-it-yourself website statistics or ready-made solutions?

Question

Analytics

Faced with the need to embed detailed statistics in a self-written CMS. more precisely:

• - Number of unique users
  
• - The number of total page views of the site.
  

Optional:
- The device from which the user enters the site.
- Sources of referrals
- Most visited pages
This refers to the provision of statistics in the form of a chart or data.
The question is, are there services that provide widgets for embedding and viewing statistics in their dpma * in the site's admin panel?

Answer 1

If third-party services like GA or Metrica don't work, take a look at Piwik.

Answer 2

Google Analytics. There are whatever APIs you want.
https://developers.google.com/analytics/devguides/...

Answer 3

in intarget.ru you can see all this, the service is free