Filters and segments
Every filter dimension, how filters combine, how a filtered view carries across pages and links.
Filters narrow every page in the dashboard to a slice of your traffic (one country, one device type, one campaign or a recorded event) without changing what any number means, only which rows go into it.

The filter dimensions
Sixteen dimensions, grouped in the filter panel:
| Group | Dimensions |
|---|---|
| Geography | Country, Region, City |
| Device | Device type, Browser, Operating system |
| Acquisition | Source, Medium, Referrer |
| UTM | utm_source, utm_medium, utm_campaign |
| Behaviour | Entry page, Exit page |
| Client | Language, Timezone |
Any dimension also has a (none) option, which matches sessions where that field is genuinely empty (a session with no referrer, for instance) rather than excluding them.
How filters combine
Values within one dimension are OR'd together: picking United States and Germany under Country shows visitors from either. Different dimensions are AND'd: Country = US and Device = mobile narrows to both at once. There's no negation yet: you can select which values to include, not which to exclude.
Filters carry across pages
Your active filters persist in a cookie, so navigating from Overview to Sources to Funnels keeps the same slice applied everywhere without re-selecting it. As with the range, anything explicit in the URL wins over the cookie: following a link with filter parameters in it always honours the link.
Sharing a filtered view
Because filters live in the URL, copying the address bar and sending it to a teammate reproduces the exact same filtered, ranged view for anyone signed into the same workspace. This does not extend to the public dashboard link covered in Sharing: that surface shows the unfiltered dashboard only, with no way for a recipient to apply or see filters.