Visitors reports can be retrieved for the entire webmart or for a specific section (except for the Spiders File Hits report returning values for the whole EUROPA only).

The Visitor Frequency report shows the average time (number of days) between visits to a website. The average time is calculated for visitors who return in the time frame specified in the reporting range (start date and end date), but considers all lifetime visits.

## How is it calculated?

The frequency of visits = Sum [ d(i) ] / (n–1), where i=1, n–1. For example, if d(i) is delta or the number of days between the last i and i+1 visit, then d(2) is the number of days between the second and third visit.

Visitors to the site are defined as unique visitors
A unique visitor visits a web site one or more times. For this report, a unique visitor who visits the Web site multiple times (so more then once) is counted as a single visitor (with multiple visits).

Visitors who visit the site only once are excluded from the result because it is not possible to generate a frequency for them.

Percentages appear to be low because the visitors who visit once are included in the denominator when calculating the percentage. Results are limited to dates on or after the start date but before the end date. The time span does not include the end date (the most recent date). The valid dates begin with the start date and end before the end date.

The total number of visitors are also those that came only once (so bounced included). Frequency 0 (zero) means came back the same day, 1 (one) means came also back the next day and so on.

In conclusion the number you see in Frequency is NOT x times but x days .

In the example below we can see that during 1-11 December there was one visitor with frequency equal to 4, which means that on average he comes every 4 days to visit the website (supposedly during 8 days of timespan he came twice => frequency=4)