At first glance, these standard measures seem very similar or even interchangeable, but they all say something different.
Visitors / Unique visitors / Identified visitors:
The term “visitor” refers to a user who visits a website. However, a visitor is not considered as a single person but as a browser or a terminal. For example, a single user can access a website via different browsers (such as Google Chrome, Firefox, or Microsoft Edge), different computers (at work and at home) or different terminals (smartphone and laptop).
If a visitor visits a page once in the morning and once in the evening, this user is counted as a single visitor with two visits. This same user will be considered a different visitor if they return to the site the next day. If we want a visitor who returns on another day to be counted only once, we must look at the metric unique visitors.
The measurement of unique visitors is based on cookies. A cookie is a file placed on a browser that contains an anonymous identifier. This ID can be used to uniquely identify a browser.
As a result of this measurement method (which is the basis of all current analytical systems), inaccuracies may occur. For example, a browser may refuse to accept cookies, or a user may decide to delete them.
In most cases, however, a terminal has a cookie and is included in the calculation of unique visitors.
In the Analytics Suite, we distinguish between unique visitors who accept cookies and unique visitors who do not accept cookies. The latter category of visitors can be determined over a one-day period using the fingerprint method. The total number of unique visitors is therefore the sum of these two types of unique visitors.
In AT Internet’s Analytics Suite, you will find the analysis of unique visitors in the User Insights section. You can evaluate the frequency of visits, the retention rate or the terminals used.
Unique visitors are identical to visitors on a daily basis (Day 1: Unique visitors = Visitors = 3). If we now consider a period of several days, we obtain 8 Visitors (3+1+2+2+2+2, the Day Visitors are added together), and 3 Unique Visitors (deduplicated).
In the Analytics Suite, unique visitors can also be analysed on multiple websites (level 1).
Identified visitors are measured using a unique identifier that is sent in the tagging when connecting to an authenticated space (login + password) and is common to all platforms (computer, tablets, smartphones…). It is this unique identifier that allows the cross-device analyses available in the User Insights module of the Analytics Suite.
Identified visitors should therefore not be considered as unique visitors. Unique identification of a unique user on different devices and browsers is only possible if the user actively identifies themselves. This is possible through a connection and can then be analysed using the “Identified Visitor” metric.
Visits, page views
A visit is defined as a visit to a website where at least one page has been loaded. Visits indicate a continuous process of using a website and should not be confused with the number of visitors, as a visitor may make several visits to the same site.
It should be noted, however, that the period during which each visit is counted only once may vary considerably.
AT Internet calculates this metric in this way: if a visitor does not perform a new action within 30 minutes, a visit is considered complete. The number of visits to a website is expressed in relation to a specific period (day, week, month…).
The visit is fundamental for the preparation of most analyses. The visit provides you with information on navigation (initial page, content viewed, exit page) and behaviour (duration, loads/page views, bounce rate, etc.).
This illustration shows two visits on five pages with all the associated information:
There are different types of visits:
Total number of visits: Total number of visits in a given period
Incoming visits: Visits with at least two pages viewed
Bounce visits: visits with only one page viewed
The Analytics Suite can also evaluate visits without page loading, for example, if a user has only seen one advertising element.
Limits of the “Visit” metric.
Imagine that a user visits and then leaves a website by turning off his computer or changing sites. 20 minutes later, he returns to the first site: he will always be considered to be in the same visit, which means that only one visit will be counted. On the other hand, if a visitor accesses a website through Microsoft Edge and returns to the site via Firefox 10 minutes later, two visits will be counted because the user will not be identified as the same visitor (the cookie varies from one browser to another).
A visit is not automatically closed when the browser is closed. In the field of digital analytics, it is unfortunately not possible to determine the exact time of exit from the site, because the user cannot send a specific message to the servers indicating that he has left the site.
This problem affects all web analytics solutions. Thus, as suggested by the DAA (Digital Analytics Association), AT Internet terminates a visit after 30 minutes of inactivity but this duration can be configured according to the needs of the site. This happens regardless of whether the browser is locked.
In AT Internet’s Analytics Suite, only one source of traffic is assigned to a visit, which is unique and unchanging. This means that the first source of a visitor the initiator of the visit is valid for the entire duration of the visit.
A page view is the loading of a page from a website or application. Each page viewed generates a hit that is sent to AT Internet. Each of these occurrences increases the “page views” metric by 1. the following graph illustrates its operating principle:
1. The User requests to load a page on the Site’s host server.
4. The tag requests an image on the Internet AT server and transmits the collected information as parameters.
5. The Internet AT server returns the requested image (1-pixel x 1-pixel, transparent).
If two tags were placed on the same page, each load of that page would be counted twice.
A visit is a user’s journey through the site or application. A visit contains one or more page views. As soon as a user is inactive for 30 minutes because he has left the site or remained on the same page, a visit is considered complete.
A visitor is a user of a website. If a visitor visits a page several times a day , with interruptions of more than 30 minutes, AT Internet considers him/her as a unique visitor who has generated several visits. If a visitor visits the website on two different days, he or she will be counted as two visitors. If the AT Internet cookie is deleted after each visit, this visitor is considered a new visitor for each new visit.
On a single day, unique visitors correspond to the definition of “normal” visitors. However, if you look at a period of more than one day, these values differ due to the recognition of cookies. If a visitor has a cookie on his browser and visits the site twice on different dates, this visitor will be recognised as a unique visitor and counted only once in the analysis period.
Pictured example: A visit to a website can be compared to a visit to a hotel: a guest (unique visitor) can be a guest of a hotel several times during a month (visitor) and can enter and leave the hotel several times during a stay (several visits). In the hotel, the guest will move to different rooms (page views).
Gross reach refers to the sum of contacts made by an advertising medium during a given period on a target group. It does not take into account the fact that some people may have been in contact with the media several times, since, unlike the net reach, each contact is counted. The raw scope, therefore, says nothing about the exact number of people affected.
The raw scope depends on the information to be determined. Here are some examples:
Raw scope of a website > Number of Visits
Gross reach of an advertising banner > Number of banner loads
Gross scope of an article on a website > Number of pages viewed (or uploaded)
Net reach refers to the number of people that an advertising medium reaches at least once during a certain evaluation period. It is expressed as an absolute value or as a percentage of the population. While the gross reach counts all contacts, the net reach deducts double or multiple contacts to give only the “exact” number of people reached by a publication.
In our Analytics Suite, the net reach is the value of unique visitors.