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Google analytics metrics and dimensions definitions for beginners
Explained simply, this is all that is a "number". A dimension is anything but a number. Concrete example: the number of page views is a metric. Another example: the marketing channel is a dimension (it is not a number).
A user who is associated with a cookie. It can perform multiple sessions and trigger multiple page views.
New users vs known users
New users are those who have never visited the site. They are distinguished from those known on the basis of this criterion.
A user's navigation slice that can include multiple page views. By default, it lasts a maximum of 30 minutes.
Average session time
How many seconds a session lasts on average. It is also an indicator of engagement.
Bounce rate (one of the Google Analytics Universal metrics but not GA4)
The proportion of visitors who only saw one page. This indicator gives an indication of user engagement. The bounce rate is not a KPI per se. This is a metric to be considered with caution. The bounce rate indicates when a person has only read a page and no interaction has taken place on the site (no other page viewed or no action taken measured in Google Analytics). A person may go to a single page or the contact page and find the information they are looking for. That's why bounce rate shouldn't be your primary engagement metric.
A pageview is triggered when a user visits the web page of a website. It composes a session.
This happens when a selected dimension does not have sufficient data. This could be due to a configuration problem.
An event is triggered when a user performs an action or interaction that you want to track. This is an optional feature in Google Analytics. It takes the help of a developer to set this up.
Objectives are proof of success for a business (purchase, registration, etc.). They must be implemented in Google Analytics.
Marketing channels in Google Analytics
Organic is a marketing channel that is set up automatically. Google Analytics says that all visits that come from search engines (excluding paid ads) are considered "organic" visits. Sometimes Google does not update its search engine listing. Some search engines like Ecosia and DuckDuckGo may be placed in the "Referral" channel because Google sometimes sees them as websites rather than search engines.
The Display marketing channel is the one in which data on advertising in banner format must be entered. This is done automatically for the Google Ads Display Network banners. There are different types of advertising agencies that offer banner ads (Display): Facebook, Google, LaPresse.ca, etc. Please note,UTMs must be used for Facebook and local media placements.
The paid channel is used to list paid advertisements that are not banners. Google Ads is tracked in this marketing channel by default. If you want to track other advertisements, you will have to use UTMs.
Social media traffic can be found in "Social". Be careful, sometimes social visitors will fall into (other) or "Referral". This isn't always the case, but if it is for you, then don't panic. Social traffic from Facebook, Instagram, Twitter or Pinterest is easily recognized by Google Analytics.
Email submissions will be identified by Google Analytics. It is sometimes possible that certain email clients are not recognized and fall into the "Referral" channel or (other) if Google Analytics does not recognize them.
Affiliates are sites that promote your site or your exhibits, products, etc. :
- within the framework of a partnership
- within the framework of an exchange
- within the framework of a commercial agreement
You must specify this marketing channel (UTM_medium) in a UTM. If you don't, the traffic will go to "Referral".
This marketing channel is used for all sites that bring you traffic.
When Google sees that you tried to specify a marketing channel but it does not recognize it, the traffic is indicated as (other). This often means that your UTMs are not necessarily correct.
Here is what the "Direct" marketing channel can be:
- When visitors have come to your site by typing in your domain name.
- When visitors came via a bookmarked link.
- When there is a technical problem and the information is withdrawn.
- When a friend sends a link via chat or private messages (called Dark Social).