How is a session defined by Usercentrics?

Usercentrics defines sessions as follows:

• A session lasts 30 minutes.
• A tracking pixel is used to measure the duration of the session using the browser cache. 
  
• A tracking pixel is set per settings ID, the browser retrieves a previously set pixel from the cache.
• After 30 minutes the cached tracking pixel and the session expires.
• If a user revisits the website after 30 minutes, a new session starts.
• If a user browses a website for longer than 30 minutes, but does not trigger a new page load, a new session won't be counted.
• Single Page Applications: If a session expires after 30 minutes and another page load occurs, a new session is counted.
  If the user browses longer, but no new page load is triggered, a new session is not counted.