Website visitor session by device type Report Query

Hello! Can you give us an idea of how is HubSpot fetching data on this specific report - Website visitor session by device type? Thank you!

@ErkGallardo Great question! This article here defines how the Hubspot tracking code is collecting this data via cookie tracking.

‘HubSpot tracks visitors using browser cookies. Every time a visitor lands on your website, HubSpot will check for an existing tracking cookie. If one does not exist, a cookie will be associated with that visitor and will log every page that person visits moving forward.’

Here is another link on cookies set by HubSpot.