How can I manage the site from my phone?

Question

JavaScript

Hello, this is not the first time I see on sites such a thing as
Synchronizing the phone with the site and the ability to perform certain actions that will affect the site in the browser on the computer
. I don’t know what it’s called correctly, can you tell me where you can read about this whole system?
Sites:
experience.omnisense.net/?lang=en
unahistoriaquedalavuelta.com/en
PS When making requests in Google such as: synchronization of the phone with the site, site management from the phone and similar requests in English. no results =/

Answer 1

mm? What's the problem? Banal websockets, it makes no difference whether to synchronize separate tabs in the browser or on different devices. But yes, beautiful sites - added to the notes.

Answer 2

20.okeanelzy.com is another site with similar functionality.