Sessions: Unique Website Visits

Sessions measures the total number of unique visits to your website, where each session represents a distinct browsing period from a visitor.

Formula

Sessions = COUNT DISTINCT ( Session ID )

Formula Components

Metric	Definition
Session ID	Unique identifier assigned to each browsing session by the Upstack Pixel

Metadata
Type	Count
Data Source	Upstack Pixel
Aggregation	Count Distinct

Example

Your e-commerce store had 12,450 sessions in April, representing unique browsing periods from visitors.

Week	Sessions	Change
Week 1	2,890	—
Week 2	3,150	+9.0%
Week 3	3,210	+1.9%
Week 4	3,200	-0.3%

How It Works

A session begins when a visitor arrives on your site and ends after 30 minutes of inactivity or at midnight. The Upstack Pixel assigns a unique session ID to track each browsing period separately from individual page views or the visitor’s identity.

When to Use

Scenario	Action
Measure overall traffic volume	Compare sessions week-over-week to gauge awareness
Evaluate campaign impact	Check if paid campaigns drive more sessions
Calculate conversion rate	Use as the denominator with purchases or sign-ups
Identify traffic patterns	Analyze sessions by day or hour to find peak times

Metric	Relationship
Page Views	Total pages viewed across all sessions
Unique Visitors	Distinct individuals who created these sessions
New Sessions	Sessions from first-time visitors
Conversion Rate	Purchases divided by sessions

See all Awareness metrics →