What is a session?

A session tracks if the HubSpot tracking code has loaded on a page.
A session tracks all the interactions a visitor is having across your site until they have been inactive for 30 minutes or more.
A session is anytime a visitor reaches your site from somewhere outside of your website domain.
A session is anytime a visitor shares one of your pages on social media.

The correct answer is:

A session tracks all the interactions a visitor is having across your site until they have been inactive for 30 minutes or more.