Sessions

Sessions are a core web analytics metric that helps assess user activity on a website. Let’s break down what they are, how they are measured, and why tracking Sessions is important.

What are Sessions

Sessions represent the total number of user sessions on a website over a specific period.
Each session is recorded when a user arrives at the site and is counted regardless of how many pages they viewed.
In web analytics, visits are often called sessions. A single user can make multiple visits in a day, week, or month.

How Sessions Differ from a Visit

In most systems, “visit” and “session” are synonyms.
Sometimes the term “visit” is used for a single session, while “visits” refers to the aggregate number of sessions over a period.

Example:
A user Sessions the site in the morning and again in the evening—this counts as 2 visits.

Why Sessions are Important

• Analyzing Site Activity: Shows the overall user flow and the site’s popularity.
• Evaluating Marketing Campaign Effectiveness: Reveals which channels attract more users.
• Monitoring Traffic Trends: Helps track increases or decreases in site activity.
• Comparison with Other Metrics: Together with unique users, pages per session, and conversions, visits provide a complete picture of the website’s performance.

How Sessions are Measured

Web analytics systems like Google Analytics and Yandex.Metrika automatically record visits via a tracking code.
A session is considered complete when:

• The user leaves the site.
• The user is inactive for more than 30 minutes.
• The clock strikes midnight (in some systems).

Factors Influencing the Number of Sessions

• Marketing Campaigns: Advertising, email newsletters, social media posts.
• SEO and Organic Traffic: Search engine rankings and high-quality content.
• Seasonality and Trends: Audience interest may shift based on the time of year or current events.
• Referral Links: Traffic from other websites and blogs.

Common Mistakes in Session Analysis

• Ignoring Unique Users: A high number of visits does not always mean a large number of individual people visited the site.
• Not Filtering Internal Traffic: Sessions from the site’s own employees can skew statistics.
• Incorrect Time Period Selection: Comparing different periods without accounting for seasonality can lead to inaccurate conclusions.

Summary

Sessions represent the number of user sessions on a website over a specific period. This metric helps analyze audience activity, the effectiveness of traffic channels, and the results of marketing campaigns. When combined with other metrics, such as unique users and conversions, sessions provide a comprehensive view of a site’s performance and audience behavior.