I want to build own analytic platform base on google analytic (GA).
So I had a quick investigation on GA.
But I have some misunderstand below:
In the website and web apps field, google analytic give three options: gtag.js, analytic.js, AMP HTML. But I don't know what will I choose whichever. or could you help me point out the case that we will use for each option?
I tried to follow gtag.js, debug and realize that google analytic send a gif request to post data to google analytic server. I think they use this way to avoid cross-domain Ajax. But the question is how they send data to google server by Android/IOS sdk? They still used gif request or normal restful api.
If anyone know or have idea please help and sharing to me.
Thanks in advance
Jame