To write a privacy description I need to know exactly what data Piwik logs.
[ul]
[li]Time of server access
[/li][li]IP address of the internet provider
[/li][li]Name of the internet provider (? - Maybe Piwik just compares the hoster’s IP with an IP database)
[/li][li]Name and version number of the internet browser
[/li][li]Names of all acitivated browser plugins (PDF, Flash, Java, Director, Quicktime, Windowsmedia, Gears, Silverlight, Realplayer)
[/li][li]Name and version number of the operating system
[/li][li]Referrer
[/li][li]All pages visited on the server
[/li][li]Screen resolution
[/li][/ul]
Is this list correct and complete?
What data is collected by the server also depends on the tracking method (e.g., JavaScript vs PiwikTracker) and API calls you make, and third-party plugins you may install. Very little of the data is considered personally identifiable.
[ul]
[li]Time of server access
[/li][/ul]
Yes, in both visitors local time and server’s time in UTC, unless you override it.
[ul]
[li]IP address of the internet provider
[/li][/ul]
IP address of the visitor or a proxy, unless you override it.
[ul]
[li]Name of the internet provider (? - Maybe Piwik just compares the hoster’s IP with an IP database)
[/li][/ul]
The name of the internet provider, domain, or nothing at all, subject to limitations of the Provider plugin and gethostbyaddr().
[ul]
[li]Name and version number of the internet browser
[/li][/ul]
Yes, parsed from User Agent string (which you may override) and subject to limitations in the UserAgentParser. (Major.minor version only.) Mobile (WAP) phones and older browsers with poor JavaScript implementations probably won’t be recorded. Internet Explorer shells are aggregated under IE.
[ul]
[li]Names of all acitivated browser plugins (PDF, Flash, Java, Director, Quicktime, Windowsmedia, Gears, Silverlight, Realplayer)
[/li][/ul]
In the raw table, these are boolean flags. “All” subject to technical limitations. Detectable doesn’t necessarily mean activated. Conversely, undetectable doesn’t mean it isn’t installed.
[ul]
[li]Name and version number of the operating system
[/li][/ul]
Not in the raw table. This is parsed from the User Agent string. Version numbers are only for Windows.
[ul]
[li]Referrer
[/li][/ul]
Yes, unless you override it in your tracking code.
[ul]
[li]All pages visited on the server
[/li][/ul]
Yes, unless you override it in your tracking code. “All” is limited to those pages where you have installed the tracking code.
[ul]
[li]Screen resolution
[/li][/ul]
Yes, where detectable.
Other things that might be collected (or are collectible):
[ul]
[li]Cookie support (boolean), subject to JavaScript support
[/li][li]Browser language (parsed from User Agent, which you may override)
[/li][li]Geolocation (guessed from browser language or provider)
[/li][li]Custom variables (entirely dependent on your code)
[/li][li]Outlinks and downloads (if supported by visitor’s browser, and link tracking was enabled)
[/li][/ul]
Good news: GeoIP is now integrated in Piwik, enabling Accurate Visitors Geolocation in your Analytics reports. To enable GeoIP go to the Settings > Geolocation admin page, and follow the short instructions.