What data does Piwik PRO collect?

Piwik PRO can collect a lot of data about how visitors use your site or mobile app. This can be data like visited pages or screens, session duration, device type, browser used, operating system, referring site, visitor location and so on. Some of this data may contain personally identifiable information or personal information, and in most countries you have to ask the visitor for permission to collect and use it.

The tables below show all the data that is or may be collected. We’ve marked the data that is or may store personally identifiable information or personal information. The tables are long but contain all the details you need.

Analytics

Session

Data	Visitor’s identity	Description
session_custom_dimension_*	Maybe	Custom data collected if a custom dimension is set up. It may contain personally identifiable information or personal information like a visitor’s email address or name.
session_custom_variable_key_*	No	A custom variable name collected if a custom variable is set up.
session_custom_variable_value_*	Maybe	A custom variable value collected if a custom variable is set up. It may contain personally identifiable information or personal information like a visitor’s email address or name.
session_entry_title	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_entry_url	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_exit_title	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_exit_url	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_goals	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_second_title	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_second_url	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_content_impressions	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_content_interactions	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_custom_events	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_downloads	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_events	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_goal_conversions	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_goal_revenue	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_outlinks	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_page_views	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_site_searches	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_time	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_unique_content_impressions	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_unique_content_interactions	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_unique_custom_events	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_unique_downloads	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_unique_outlinks	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_unique_page_views	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_unique_searches	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
user_id	Yes	Custom data collected if the user ID is set up. It may contain personally identifiable information or personal information like a customer ID.
visitor_days_since_first_session	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
visitor_days_since_last_session	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
cookie_id	Yes	A randomly generated identifier for a visitor and stored in a `_pk_id` cookie (browsers) or mobile app (SDKs). Read more
visitor_id	Yes	A value taken from the `cookie_id` or derived from the `user_id`. It is used to calculate the number of unique visitors and recognize new and returning visitors, but plays no direct role in recognizing the visitor’s session. Read more
visitor_returning	No	Set when a session is created after checking the visitor’s identity in previously collected data.
visitor_session_number	No	Set when a session is created after checking the visitor’s identity in previously collected data.
campaign_gclid	Maybe	Google Click ID, which shows the parameter passed in the URL with Google Ads clicks.

Event

Data	Visitor’s identity	Description
is_bounce	No	Assigned to the event after data collection.
content_interaction	No	Description of the content interaction event.
content_name	No	Description of the content interaction event.
content_piece	No	Description of the content interaction event.
content_target	No	Description of the content interaction event.
custom_event_action	No	Custom data collected if a custom event is set up.
custom_event_category	No	Custom data collected if a custom event is set up.
custom_event_name	No	Custom data collected if a custom event is set up.
custom_event_value	No	Custom data collected if a custom event is set up.
download_url	No	Download event description
event_custom_dimension_*	Maybe	Custom data collected if a custom dimension is set up. It may contain personally identifiable information or personal information like a visitor’s email address or name.
event_custom_variable_key_*	No	A custom variable name collected if a custom variable is set up.
event_custom_variable_value_*	Maybe	Custom data collected if a custom variable is set up. It may contain personally identifiable information or personal information like a visitor’s email address or name.
event_index	No	The index of a given event in the session’s event sequence. The sequence starts with 0.
event_title	No	Event description
event_type	No	Event type like page view, custom event, goal conversion, download, outlink and so on.
event_url	No	The URL of the page view or the URL of the page view associated with the event.
goal_revenue	No	Revenue that can optionally be tracked along with the goal.
is_entry	No	Set after data collection. Determines whether the page view is a session entry.
is_exit	No	Set after data collection. Determines whether the page view is a session exit.
next_event_title	No	Set after data collection as an additional dimension.
next_event_url	No	Set after data collection as an additional dimension.
outlink_url	No	Captured when a visitor clicks on a link to an external site (different domain).
page_view_index	No	An iterator of page views within a session. It starts at 0.
previous_event_title	No	Set during data collection as an additional dimension.
previous_event_url	No	Set during collecting data as an additional dimension.
search_category	No	Search event description. Tracked if there is a custom JavaScript implementation.
search_keyword	No	Search event description. Tracked if there is a custom JavaScript implementation.
search_results_count	No	Search event description. Tracked if there is a custom JavaScript implementation.
time_on_page	No	Time spent on the page, calculated as the difference between the timestamp of the page view and the next page view in the session. For the last page view in a session, time can be calculated using the optional heartbeat function.

Device & software

Data	Visitor’s identity	Description
browser_engine	Yes	Captured from the browser’s user-agent HTTP header.
browser_language_iso639	Yes	Captured from the browser’s user-agent HTTP header.
browser_name	Yes	Captured from the browser’s user-agent HTTP header.
browser_version	Yes	Captured from the browser’s user-agent HTTP header.
device_brand	Yes	Captured from the browser’s user-agent HTTP header.
device_model	Yes	Captured from the browser’s user-agent HTTP header.
device_type	Yes	Captured from the browser’s user agent HTTP header and browser parameters like resolution.
operating_system	Yes	Captured from the browser’s user-agent HTTP header.
operating_system_version	Yes	Captured from the browser’s user-agent HTTP header.
plugin_cookie	No	Captured from the browser using JavaScript methods.
plugin_director	No	Captured from the browser using JavaScript methods.
plugin_flash	No	Captured from the browser using JavaScript methods.
plugin_gears	No	Captured from the browser using JavaScript methods.
plugin_java	No	Captured from the browser using JavaScript methods.
plugin_pdf	No	Captured from the browser using JavaScript methods.
plugin_quicktime	No	Captured from the browser using JavaScript methods.
plugin_realplayer	No	Captured from the browser using JavaScript methods.
plugin_silverlight	No	Captured from the browser using JavaScript methods.
plugin_windowsmedia	No	Captured from the browser using JavaScript methods.
resolution	Yes	Captured from the browser using JavaScript methods.
resolution_height	Yes	Captured from the browser using JavaScript methods.
resolution_width	Yes	Captured from the browser using JavaScript methods.

Location

Data	Visitor’s identity	Description
location_city_geoname_id	Yes	Estimated based on IP address using GeoIP service.
location_city_name	Yes	Estimated based on IP address using GeoIP service.
location_continent_iso_code	Yes	Estimated based on IP address using GeoIP service.
location_country_iso_code	Yes	Estimated based on IP address using GeoIP service.
location_country_name	Yes	Estimated based on IP address using GeoIP service.
location_ipv4	Yes	The IP address is an integral part of the requests sent by the browser and is used to identify unique visitors and read geolocation. Most Piwik PRO setups have privacy settings turned on and these addresses are fully or partially anonymized before being stored in the database.
location_ipv6	Yes	The IP address is an integral part of the requests sent by the browser and is used to identify unique visitors and read geolocation. Most Piwik PRO setups have privacy settings turned on and these addresses are fully or partially anonymized before being stored in the database.
location_latitude	Yes	Estimated based on IP address using GeoIP service.
location_longitude	Yes	Estimated based on IP address using GeoIP service.
location_organization	Yes	Estimated based on IP address using GeoIP service.
location_provider	Yes	Estimated based on IP address using GeoIP service.
location_subdivision_1_iso_code	Yes	Estimated based on IP address using GeoIP service.
location_subdivision_1_name	Yes	Estimated based on IP address using GeoIP service.
location_subdivision_2_iso_code	Yes	Estimated based on IP address using GeoIP service.
location_subdivision_2_name	Yes	Estimated based on IP address using GeoIP service.

Timestamps

Data	Visitor’s identity	Description
local_time	No	Captured from the HTTP request content.
server_date	No	Captured from the HTTP request content.
server_time	No	Captured from the HTTP request content.
session_first_event_time	No	Created or aggregated after data collection as an additional descriptive dimension of the session header.
session_last_event_time	No	Created or aggregated after data collection as an additional descriptive dimension of the session header.
event_time	No	The timestamp of the event (UTC0).
next_event_time	No	Set after data collection as an additional dimension.
previous_event_time	No	Set during data collection as an additional dimension.

Traffic source

Data	Visitor’s identity	Description
medium	No	Captured from query parameters.
campaign_content	No	Captured from query parameters that have been assigned optionally.
campaign_id	No	Captured from query parameters that have been assigned optionally.
campaign_keyword	No	Captured from query parameters that have been assigned optionally.
campaign_medium	No	Captured from query parameters that have been assigned optionally.
campaign_name	No	Captured from query parameters that have been assigned optionally.
campaign_source	No	Captured from query parameters that have been assigned optionally.
keyword	No	Captured from query parameters.
referrer_keyword	No	Captured from HTTP request referrer field or query parameters.
referrer_name	No	Captured from HTTP request referrer field or query parameters.
referrer_type	No	Captured from HTTP request referrer field or query parameters.
referrer_url	No	Captured from HTTP request referrer field or query parameters.
source	No	Captured from HTTP request referrer field or query parameters.
source_medium	No	Captured from HTTP request referrer field or query parameters.

Performance

Data	Visitor’s identity	Description
page_generation_time	No	Timing statistics collected from the visitor’s browser.
timing_connect_end	No	Timing statistics collected from the visitor’s browser.
timing_connect_start	No	Timing statistics collected from the visitor’s browser.
timing_content_end	No	Timing statistics collected from the visitor’s browser.
timing_content_start	No	Timing statistics collected from the visitor’s browser.
timing_dom_complete	No	Timing statistics collected from the visitor’s browser.
timing_dom_interactive	No	Timing statistics collected from the visitor’s browser.
timing_dom_loading	No	Timing statistics collected from the visitor’s browser.
timing_event_end	No	Timing statistics collected from the visitor’s browser.
timing_fetch_start	No	Timing statistics collected from the visitor’s browser.
timing_lookup_start	No	Timing statistics collected from the visitor’s browser.
timing_redirect_end	No	Timing statistics collected from the visitor’s browser.
timing_redirect_start	No	Timing statistics collected from the visitor’s browser.
timing_request_start	No	Timing statistics collected from the visitor’s browser.
timing_response_end	No	Timing statistics collected from the visitor’s browser.
timing_response_start	No	Timing statistics collected from the visitor’s browser.
timing_secure_start	No	Timing statistics collected from the visitor’s browser.
timing_unload_end	No	Timing statistics collected from the visitor’s browser.
timing_unload_start	No	Timing statistics collected from the visitor’s browser.

Internal data identifiers

Data	Visitor’s identity	Description
app_id	No	An ID automatically assigned to each site or app.
app_uuid	No	An ID automatically assigned to each site or app.
session_id	No	The ID of the session object in the database.
event_id	No	The ID of the given event record in the database. Set when creating an event.
goal_id	No	The ID of the goal set by the user.

Tracking source

Data	Visitor’s identity	Description
name	No	The tracking source name matched with our dictionary. Possible values: JavaScript Tracking Client, JavaScript Tracking Client using Tag Manager, JavaScript Tracking Client using Google Tag Manager, JavaScript Tracking Client using Tealium, Angular library, React library, Android SDK, iOS SDK, React Native, Flutter, SharePoint, Confluence, WordPress, Google AMP, PHP Tracking Client, Web Log Analytics, Empty, Unknown.
orig_name	No	The original tracking source name assigned if the name is from outside of our dictionary.
version	No	Tracking source version

Data

Visitor’s identity

Description

name

The tracking source name matched with our dictionary.

Possible values: JavaScript Tracking Client, JavaScript Tracking Client using Tag Manager, JavaScript Tracking Client using Google Tag Manager, JavaScript Tracking Client using Tealium, Angular library, React library, Android SDK, iOS SDK, React Native, Flutter, SharePoint, Confluence, WordPress, Google AMP, PHP Tracking Client, Web Log Analytics, Empty, Unknown.

orig_name

The original tracking source name assigned if the name is from outside of our dictionary.

version

Tracking source version

Ecommerce

Data	Visitor's identity	Description
cart_additions	No	Ecommerce event tracked if there is additional setup.
cart_removals	No	Ecommerce event tracked if there is additional setup.
ecommerce_abandoned_carts	No	Ecommerce event tracked if there is additional setup.
lost_revenue	No	Ecommerce event tracked if there is additional setup. This is the value of the abandoned cart.
order_id	Yes	Ecommerce event tracked if there is additional setup. This is usually the order ID. The order ID can be used to look up personal information in other systems.
product_brand	No	Ecommerce event tracked if there is additional setup.
product_category	No	Ecommerce event tracked if there is additional setup.
product_category1	No	Ecommerce event tracked if there is additional setup.
product_category2	No	Ecommerce event tracked if there is additional setup.
product_category3	No	Ecommerce event tracked if there is additional setup.
product_category4	No	Ecommerce event tracked if there is additional setup.
product_category5	No	Ecommerce event tracked if there is additional setup.
product_count	No	Ecommerce event tracked if there is additional setup.
product_detail_views	No	Ecommerce event tracked if there is additional setup.
product_name	No	Ecommerce event tracked if there is additional setup.
product_price	No	Ecommerce event tracked if there is additional setup.
product_quantity	No	Ecommerce event tracked if there is additional setup.
product_revenue	No	Ecommerce event tracked if there is additional setup.
product_sku	No	Ecommerce event tracked if there is additional setup.
product_variant	No	Ecommerce event tracked if there is additional setup.
revenue	No	Ecommerce event tracked if there is additional setup.
revenue_discount	No	Ecommerce event tracked if there is additional setup.
revenue_shipping	No	Ecommerce event tracked if there is additional setup.
revenue_subtotal	No	Ecommerce event tracked if there is additional setup.
revenue_tax	No	Ecommerce event tracked if there is additional setup.
session_ecommerce_status	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_abandoned_carts	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_cart_additions	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_cart_removals	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_ecommerce_conversions	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
session_total_product_detail_views	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.
visitor_days_since_order	No	Created or aggregated after data collection. It is an additional descriptive dimension of the session header.

CDP

Attribute id	Visitor’s identity	Aggregation	Description
id	Yes	n/a	The ID of the visitor’s profile.
user_id	Yes	list_unique	Custom data collected if the user ID is set up. It may contain personally identifiable information or personal information like a customer ID.
visitor_id	Yes	list_unique	A value taken from the cookie_id or derived from the user_id. It is used to calculate the number of unique visitors and recognize new and returning visitors, but plays no direct role in recognizing the visitor’s session. Read more
cookie_id	Yes	list_unique	A randomly generated identifier for a visitor and stored in a _pk_id cookie (browsers) or mobile app (SDKs). Read more
first_activity	No	min	Time of the visitor’s first event.
last_activity	No	max	Time of the visitor’s last event.
last_order_time	No	max	Time of the visitor’s last order.
first_page_url	No	first	The URL of the page view or the URL of the page view associated with the first event.
last_page_url	No	last	The URL of the page view or the URL of the page view associated with the last event.
goal_uuids	No	list_unique	The ID of the goal set by the user.
total_goal_revenue	No	sum	Revenue that can optionally be tracked along with the goal.
total_revenue	No	sum	Ecommerce event tracked if there is an additional setup.
consent_type_analytics	No	last	Captured when a visitor consents (or doesn’t consent) to Analytics.
consent_type_ab_testing_personalization	No	last	Captured when a visitor consents (or doesn’t consent) to A/B testing and Personalization.
consent_type_conversion_tracking	No	last	Captured when a visitor consents (or doesn’t consent) to Conversion tracking.
consent_type_marketing_automation	No	last	Captured when a visitor consents (or doesn’t consent) to Marketing automation.
consent_type_remarketing	No	last	Captured when a visitor consents (or doesn’t consent) to Remarketing.
consent_type_user_feedback	No	last	Captured when a visitor consents (or doesn’t consent) to User feedback.
consent_type_custom_1	No	last	Captured when a visitor consents (or doesn’t consent) to custom consent type.
source	No	first_last	Captured from query parameters that have been assigned optionally.
medium	No	first_last	Captured from query parameters that have been assigned optionally.
source_medium	No	first_last	Captured from query parameters that have been assigned optionally.
keyword	No	first_last	Captured from query parameters that have been assigned optionally.
referrer_type	No	first_last	Captured from query parameters that have been assigned optionally.
referrer_url	No	first_last	Captured from query parameters that have been assigned optionally.
campaign_name	No	first_last	Captured from query parameters that have been assigned optionally.
campaign_id	No	first_last	Captured from query parameters that have been assigned optionally.
campaign_content	No	first_last	Captured from query parameters that have been assigned optionally.
operating_system	No	first_last	Captured from the browser’s user-agent HTTP header.
operating_system_version	No	first_last	Captured from the browser’s user-agent HTTP header.
browser_engine	Yes	first_last	Captured from the browser’s user-agent HTTP header.
browser_name	Yes	first_last	Captured from the browser’s user-agent HTTP header.
browser_version	Yes	first_last	Captured from the browser’s user-agent HTTP header.
browser_language_iso639	Yes	first_last	Captured from the browser’s user-agent HTTP header.
device_type	Yes	first_last	Captured from the browser’s user-agent HTTP header.
device_brand	Yes	first_last	Captured from the browser’s user-agent HTTP header.
device_model	Yes	first_last	Captured from the browser’s user-agent HTTP header.
resolution	Yes	first_last	Captured from the browser’s user-agent HTTP header.
resolution_width	Yes	first_last	Captured from the browser’s user-agent HTTP header.
resolution_height	Yes	first_last	Captured from the browser’s user-agent HTTP header.
ipv4_address	Yes	first_last	The IP address is an integral part of the requests sent by the browser and is used to identify unique visitors and read geolocation. Most Piwik PRO setups have privacy settings turned on and these addresses are fully or partially anonymized before being stored in the database.
ipv6_address	Yes	first_last	The IP address is an integral part of the requests sent by the browser and is used to identify unique visitors and read geolocation. Most Piwik PRO setups have privacy settings turned on and these addresses are fully or partially anonymized before being stored in the database.
location_continent_iso_code	Yes	first_last	Estimated based on IP address using GeoIP service.
location_country_iso_code	Yes	first_last	Estimated based on IP address using GeoIP service.
location_subdivision_1_iso_code	Yes	first_last	Estimated based on IP address using GeoIP service.
location_subdivision_2_iso_code	Yes	first_last	Estimated based on IP address using GeoIP service.
location_city_geoname_id	Yes	first_last	Estimated based on IP address using GeoIP service.
location_provider	Yes	first_last	Estimated based on IP address using GeoIP service.
location_organization	Yes	first_last	Estimated based on IP address using GeoIP service.
location_latitude	Yes	first_last	Estimated based on IP address using GeoIP service.
location_longitude	Yes	first_last	Estimated based on IP address using GeoIP service.
session_custom_dimension_1	Maybe	list_unique	Custom data collected if a custom dimension is set up. It may contain personally identifiable information or personal information like a visitor’s email address or name.

Note:

The data schema for raw data is saved as three files: sessions (sample CSV file), events (sample CSV file) and Google Ads integration.
The collected data is presented in reports as dimensions and metrics.