How does Adobe identify which server calls are a part of a visit?

[mooreevan]

Visitors are bound to their server calls by their Visitor ID (at least), which is a part of each server call

How are server calls parsed into visits? Is there a marker or a unique ID for the visit on each server call? Or are server calls aggregated into a visit on Adobe's side?

Thanks

[Hyder_Ziaee]

There are 4 rules that are used to combine hits into a visit

Document: Visit

[mooreevan]

So it's those 4 rules in combination with what? The visitor ID?

[Hyder_Ziaee · Accepted solution]

Yes, for a particular visitor.

To be more technical it is the ID through which the visitor is identified for the hit. This ID is a combination of post_visid_high and post_visid_low.

Here is the document that provides the information on the various methods used to identify the unique visitor:

Identifying Visitors

Here is how visits can be calculated from raw data collected by Adobe:

Calculating Metrics

[mooreevan]

Thanks!