Session / Session Duration
A session is the period during which a visitor is active on the site. It ends after 30 minutes of inactivity. Session duration is the average visit length — a measure of engagement.
In practice
High session duration isn't always good — if a customer spent 8 minutes trying to find checkout, that's a UX problem. A more accurate metric: pages per session combined with CR.
Common misconception
'A long session means an interesting store.' A long session with low CR means a confused customer. The correct measurement: session duration only in the context of CR.
How to fix it
Short sessions? (1) does the homepage clearly explain what you sell within 5 seconds? (2) improve internal linking to product pages, (3) add related products, (4) site search — how many people search and don't find what they need?
Example
An electronics store: average session was 1:20. Adding prominent site search plus similar products raised sessions to 3:45, pages per session from 1.8 to 3.2, and CR by 22%.
Priority
Session duration is useful as a benchmark. A sudden drop signals a technical problem. A steady rise signals content improvement.
Related terms
Keep learning. Metrics that touch the same area:
- Bounce RateAnalyticsThe percentage of visitors who left after viewing only one page. In GA4, replaced by engagement rate — the percentage of visits with 10+ seconds, a conversion, or 2+ pages.
- ConversionAnalyticsA desired action a visitor takes — a purchase, sign-up, form submission. The basis for measuring marketing success.
- Conversion Rate (CR)AnalyticsThe percentage of visitors who completed a desired action. Average: 1-4% for purchases, depending on category.
- ATC – Add To CartAnalyticsThe action where a visitor adds an item to the cart. Average ATC rate: 8-10% of product page visits.
- Cart AbandonmentAnalyticsA customer added an item to the cart but didn't complete the purchase. Average: 70-75%. One of the biggest opportunities.
- Open RateAnalyticsThe percentage of recipients who opened the email. Average: 20-25% in eCommerce.
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