After connecting GA, requests with a 302 response began to pour in?

Question

Search Engine Optimization

Hello everyone... I don't know if it should be like this, but - there are stable requests to
https://www.google-analytics.com/r/collect?v=...
https://googleads.g.doubleclick. net/pagead...
with various parameters...
(although something comes from twitter: https://platform.twitter.com/oct.js)
Is this how it should be? Everything would be fine, but why is the answer not 200, but 302? O_o
Are these requests necessary, is it possible to get rid of them, and if so, how?)