Recently, the Google Analytics team made a change to how sessions are defined in GA:

Before
– More than 30 minutes have elapsed between pageviews for a single visitor.
– At the end of a day.
– When a visitor closes their browser.
 
After
– More than 30 minutes have elapsed between pageviews for a single visitor.
– At the end of a day.

– When any traffic source value for the user changes. Traffic source information includes:utm_source, utm_medium, utm_term, utm_content, utm_id, utm_campaign, and gclid.

This change does NOT apply to historical data, only new data collected after August 11th. While this may slightly increase the number of visits you see for your site (the Google Analytics teams expects less than a 1% increase for most users), this is beneficial in the long run as it brings GA’s definition of a session more in line with the common definition of a visit, and will lead to more accurate traffic attribution.

As a Google Analytics Certified Partner, Endai specializes in configuring, managing and analyzing the data you need to get the most out of your website. If you have any Google Analytics issues that need solving, please contact us using the form on the right.