Glossary

Web analytics, defined

The terms you see in Visitor Fast, in one sentence each.

Pageview
One load of a page, including client-side route changes in single-page apps.
Event
Any recorded action: a pageview, a custom goal such as signup, or a purchase.
Visitor
A unique person, identified by a random ID stored in the browser or by an identity you set.
Session (visit)
A group of events from one visitor without a 30-minute gap.
Bounce rate
The share of visits with only one pageview.
Session time
The time between the first and last event of a visit, averaged across visits.
Referrer
The page a visitor came from before landing on your site.
Direct traffic
Visits with no referrer, such as typed URLs, bookmarks and some apps.
UTM parameters
Link tags (utm_source, utm_medium, utm_campaign, utm_content, utm_term) that name the campaign behind a click.
Goal
A custom event you care about, such as signup_completed, with its conversion rate.
Conversion rate
Visitors who completed a goal divided by all visitors in the period.
Funnel
An ordered list of steps showing how many visitors reach each one and where they drop off.
Revenue attribution
Linking a verified payment to the visit and channel that brought the customer.
First-touch attribution
Crediting a payment to the source of the customer's first recorded visit.
Revenue per visitor
Attributed revenue divided by visitors, used to compare channels of different sizes.
Server-side event
An event sent from your backend through the API instead of the browser script.