GA4 Google Analytics Glossary Terms 2026

 

 GA4 Google Analytics Glossary Terms

A

1. Acquisition — The process of attracting users to your website or app.

2. Active User — A user who has an engaged session or meets GA4's criteria for being considered active.

3. Active Users — The number of users who actively interacted with your website or app during a selected period.

4. Advertising ID — An identifier used by advertising platforms to help measure and personalize advertising.

5. Ads Personalization — The use of user data to create more relevant advertising experiences.

6. Analytics Intelligence — GA4's automated insights and analysis features that help identify important changes in your data.

7. API — Application Programming Interface that allows software and services to access or work with analytics data.

8. Attribution — The process of assigning credit for a conversion or key event to marketing touchpoints.

9. Attribution Model — A method used to determine how conversion credit is distributed across user touchpoints.

10. Audience — A group of users who meet specific conditions or characteristics defined in GA4.

B

11. Bounce Rate — The percentage of sessions that were not engaged sessions.

12. BigQuery Export — A feature that allows GA4 data to be exported to Google BigQuery for advanced analysis.

13. Benchmarking — Comparing your analytics performance with aggregated industry data when eligible.

14. Browser — The software users employ to access websites, such as Chrome, Safari, or Firefox.

15. Business Objectives — The goals that analytics measurement is designed to help a business understand and improve.

C

16. Campaign — A marketing initiative used to organize and measure promotional traffic.

17. Campaign ID — An identifier used to distinguish a marketing campaign.

18. Campaign Name — The name assigned to a marketing campaign.

19. Campaign Medium — Identifies the type of traffic generated by a campaign, such as email, CPC, or social.

20. Campaign Source — Identifies where campaign traffic originates, such as Google, Facebook, or a newsletter.

21. Channel — A classification of traffic based on how users arrived at your website or app.

22. Channel Group — A collection of traffic sources categorized into meaningful marketing channels.

23. Client ID — An identifier used to distinguish a browser or device instance for analytics measurement.

24. Click — An interaction in which a user selects a link, button, advertisement, or other clickable element.

25. Cohort — A group of users who share a common characteristic or experience within a specified time period.

26. Cohort Analysis — Analysis of how groups of users behave over time.

27. Conversion — A previously used GA4 term for important user actions; GA4 now generally uses the term key event.

28. Conversion Rate — The percentage of users or sessions that complete a desired conversion or key event, depending on the report or metric.

29. Custom Dimensions — User-defined dimensions created to analyze information not covered by GA4's standard dimensions.

30. Custom Events — Events created to measure interactions that are not automatically collected or covered by recommended events.

D

31. Data API — An API that allows applications to access GA4 reporting data programmatically.

32. Data Collection — The process of gathering information about user interactions with a website or app.

33. Data Filter — A configuration used to include or exclude certain data from a GA4 property or report.

34. Data Retention — The length of time certain user-level and event-level data is retained for analysis.

35. Data Stream — A source of data flowing into a GA4 property, such as a website or mobile application.

36. Data Thresholding — A privacy protection that may limit the amount of data shown in some reports.

37. Date Range — The period selected for viewing and analyzing analytics data.

38. DebugView — A GA4 feature used to inspect events being sent from a website or app during debugging.

39. Demographics — User characteristics such as age range, gender, language, and interests, where available.

40. Dimensions — Descriptive attributes of your data, such as country, device category, or page title.

E

41. Ecommerce — GA4 measurement and reporting for online shopping activities.

42. Ecommerce Event — An event used to measure ecommerce interactions such as viewing products, adding items to carts, or completing purchases.

43. Engaged Session — A session that lasts longer than 10 seconds, includes a key event, or includes at least two page or screen views.

44. Engagement Rate — The percentage of sessions that were engaged sessions.

45. Engagement — User interactions with a website or app, including page views, events, and other measured activities.

46. Event — An interaction or occurrence measured by GA4, such as a page view, click, purchase, or video play.

47. Event Count — The total number of times an event was triggered.

48. Event Name — The name assigned to an event, such as page_view, purchase, or sign_up.

49. Event Parameter — Additional information sent with an event to provide context about the interaction.

50. Event Scope — The level at which event-related information is associated with analytics data.

F

51. First-Party Data — Data collected directly by a business from interactions with its own website, app, or services.

52. First User Campaign — The campaign associated with a user's first acquisition.

53. First User Medium — The medium associated with how a user was originally acquired.

54. First User Source — The source associated with a user's first known acquisition.

55. First Visit — A user's first recorded visit to a website.

56. Firebase — Google's platform for developing and measuring mobile applications, integrated with GA4.

57. Firebase Analytics — Analytics functionality provided through Firebase and integrated with GA4.

58. Funnel Exploration — A GA4 Explorations technique used to analyze how users progress through a sequence of steps.

59. Funnel — A sequence of steps users are expected to complete toward a goal or key event.

60. Funnel Step — An individual stage within a funnel.

G

61. GA4 — Google Analytics 4, Google's current analytics platform for websites and apps.

62. GA4 Property — The container in GA4 where data from websites and apps is collected and analyzed.

63. Google Ads — Google's advertising platform, which can be linked with GA4 for advertising and measurement purposes.

64. Google Ads Campaign — A campaign in Google Ads whose performance can be analyzed through linked GA4 data.

65. Google Signals — Google functionality that uses aggregated signed-in user data to support cross-device and advertising-related measurement.

66. Google Tag Manager — A tag management system that can be used to implement GA4 and other tracking tags.

67. Google Search Console — Google's service for monitoring website performance and visibility in Google Search.

68. Google Marketing Platform — Google's suite of marketing and analytics products that can work with GA4.

69. Geographic Data — Information about the geographic location associated with users or traffic.

70. Goal — A legacy Universal Analytics concept. In GA4, important actions are generally measured as events and key events.

H

71. Hit — A term commonly associated with Universal Analytics; GA4 primarily uses an event-based measurement model instead.

72. Homepage — The primary page of a website, whose visits and interactions can be measured in GA4.

73. Hostname — The domain or hostname from which website data is collected.

74. Hourly Data — Analytics data organized or analyzed by hour.

75. High-Value User — A user identified as valuable according to business-defined criteria or metrics.

I

76. Identity Spaces — Different identifiers GA4 can use to understand users across interactions.

77. Identity Reporting — The method GA4 uses to determine which interactions belong to the same user for reporting.

78. Impression — An instance in which an advertisement, product, or other content is displayed.

79. Item — A product or service tracked through ecommerce measurement.

80. Item ID — An identifier used to distinguish an ecommerce item.

81. Item Name — The name assigned to an ecommerce product or service.

82. Item Category — A category assigned to an ecommerce item.

83. Item Revenue — Revenue attributed to individual ecommerce items.

84. Item View — An event or interaction representing a user viewing an ecommerce item.

85. Internal Traffic — Traffic generated by users or devices that a business identifies as internal.

J

86. JavaScript Tag — JavaScript code used to send measurement information from a website to an analytics platform.

87. Journey — The sequence of interactions a user has with a website or app.

88. Journey Exploration — An analysis approach for understanding paths users take through a digital property.

89. JavaScript Measurement — The use of JavaScript-based tracking to collect website interaction data.

90. JSON — A structured data format commonly used when working with APIs and analytics data.

K

91. Key Event — An event identified as especially important to a business, such as a purchase, signup, or lead submission.

92. Key Event Rate — A metric that measures the percentage of users or sessions associated with a key event, depending on the metric/report context.

93. Key Event Count — The number of times designated key events occurred.

94. KPI — Key Performance Indicator; a measurable value used to evaluate business or marketing performance.

95. Keyword — A search term associated with search marketing or search traffic data.

L

96. Landing Page — The first page a user views during a session.

97. Landing Page Report — A report used to evaluate performance based on the first page users visited.

98. Lifetime Value (LTV) — An estimate or measurement of the value generated by users over their relationship with a business.

99. Linker — Technology historically used to help maintain measurement information across domains or pages.

100. Looker Studio — Google's reporting and visualization platform that can connect to GA4 data.

M

101. Measurement ID — An identifier associated with a GA4 web data stream, typically beginning with G-.

102. Measurement Protocol — A method for sending event data directly to Google Analytics servers.

103. Medium — A classification describing the type of traffic source, such as organic, referral, email, or CPC.

104. Metrics — Quantitative measurements such as users, sessions, views, and event counts.

105. Mobile App Stream — A GA4 data stream used to collect data from a mobile application.

106. Mobile Device — A smartphone or tablet used to access a website or application.

107. Monetization — GA4 reporting related to revenue and the financial value generated through digital interactions.

108. Modeling — Statistical techniques used by Google to estimate or fill certain measurement gaps while respecting privacy.

109. Model Comparison — A feature used to compare different attribution approaches and their impact on credited results.

110. Monthly Active Users — The number of users active during a monthly measurement period.

N

111. New Users — Users who interacted with a website or app for the first time according to GA4's measurement criteria.

112. New User Acquisition — Analysis of how new users first arrive at a website or app.

113. New User Rate — A metric indicating the proportion of users who are new during a specified period.

114. Next Page Path — A legacy analytics concept describing the next page viewed after a particular page.

115. Non-Personalized Ads — Advertising that does not use user activity for personalized ad targeting.

O

116. Organic Search — Traffic received from unpaid search-engine results.

117. Organic Social — Traffic from unpaid social media activity.

118. Other Traffic — Traffic that does not fit into the primary channel group classifications.

119. Overview Report — A report that provides a summary of important analytics information.

120. One-Click Attribution — A simplified attribution approach that assigns credit to a single touchpoint.

P

121. Page Location — The full URL of a webpage.

122. Page Path — The path portion of a webpage URL.

123. Page Referrer — The URL of the previous page that referred the user to the current page.

124. Page Title — The title of a webpage as measured by GA4.

125. Pages and Screens — A GA4 report showing performance for webpages and app screens.

126. Parameter — Additional information sent with an event.

127. Paid Search — Traffic generated through paid search advertising.

128. Paid Social — Traffic generated through paid social media advertising.

129. Path Exploration — An Explorations technique used to discover common navigation paths users take.

130. Property — A GA4 container that collects and organizes data for a website, app, or both.

131. Predictive Audience — An audience built using predictive insights about user behavior where eligibility requirements are met.

132. Predictive Metrics — Metrics generated using machine-learning models to estimate potential future user behavior.

133. Purchase Event — An ecommerce event used to record a completed purchase.

134. Purchase Revenue — Revenue associated with completed purchases.

135. Page View Event — An automatically collected event that records a webpage view.

Q

136. Query Parameter — Information appended to a URL after a question mark, often used for tracking or website functionality.

137. Query — A request for information, such as a search query reported through connected search data.

138. Quality of Data — The reliability, completeness, consistency, and accuracy of collected analytics information.

139. Quota — A usage limit that may apply to certain GA4 APIs or services.

140. Qualified Traffic — Traffic that meets specified business or marketing criteria.

R

141. Real-Time Report — A GA4 report showing recent user activity and events.

142. Referral — Traffic that arrives through links from other websites.

143. Referral Exclusion — A configuration or process used to prevent unwanted referral sources from affecting attribution.

144. Retention — Measurement of whether users return to and continue interacting with a website or app.

145. Retention Report — A report used to analyze user retention over time.

146. Revenue — Money generated from purchases, subscriptions, advertising, or other monetized activities measured in GA4.

147. Revenue Per User — Revenue divided by the relevant number of users.

148. Returning User — A user who has previously interacted with the website or app and returns during the measurement period.

149. Reporting Identity — The identity method GA4 uses when associating interactions with users for reporting.

150. Remarketing — Marketing to users based on previous interactions with a website or app.

S

151. Session — A group of user interactions occurring within a period of activity.

152. Session Duration — The amount of time associated with a user's session.

153. Session Start — An automatically collected event indicating that a new session has begun.

154. Session Source — The source associated with a session's traffic.

155. Session Medium — The medium associated with a session's traffic.

156. Session Campaign — The campaign associated with a session's traffic.

157. Source — Identifies where traffic originates, such as Google, Bing, Facebook, or another website.

158. Source/Medium — A combined dimension showing both the source and medium of traffic.

159. Screen View — An app interaction representing a screen being viewed.

160. Search Console — Google Search Console, which provides search-performance data that can be connected with GA4.

161. Segments — Subsets of users, sessions, or events used for detailed analysis in Explorations.

162. Site Search — Measurement of searches users perform within a website.

163. Stream — A flow of data from a website or app into a GA4 property.

164. Stream ID — An identifier associated with a GA4 data stream.

165. Stream Name — The name assigned to a GA4 data stream.

166. Session-Scoped Dimension — A dimension whose value is associated with a user's session.

167. User-Scoped Dimension — A dimension whose value is associated with a user.

168. Event-Scoped Dimension — A dimension whose value is associated with an individual event.

169. Sampling — The use of a subset of available data to estimate results when analyzing large datasets in certain contexts.

170. Scroll Event — An automatically collected event that can record when a user reaches approximately 90% of a webpage.

T

171. Tag — Code or configuration used to send information to an analytics or marketing platform.

172. Tag Manager — Google Tag Manager, a system for managing website and app tags.

173. Traffic Acquisition — Analysis of how sessions are acquired, including source, medium, campaign, and channel.

174. Traffic Source — The origin from which users or sessions arrive.

175. Tracking Code — Code used to collect and send website or app measurement data.

176. Total Users — The total number of users represented by a particular report or metric.

177. Trigger — A Google Tag Manager condition that determines when a tag should fire.

178. Transaction ID — A unique identifier associated with an ecommerce transaction.

179. Transaction Revenue — Revenue generated by an ecommerce transaction.

180. Time Zone — The time zone configured for a GA4 property, which affects reporting dates and times.

U

181. UTM Parameters — URL parameters used to identify marketing campaign information.

182. UTM Campaign — The campaign value included in a tagged URL.

183. UTM Content — A parameter used to distinguish different ads, links, or creative elements within a campaign.

184. UTM Medium — A parameter that identifies the marketing medium.

185. UTM Source — A parameter that identifies the traffic source.

186. UTM Term — A parameter commonly used to identify paid-search keywords.

187. User — A person or device identity represented in GA4 measurement.

188. User Acquisition — Analysis of how users were originally acquired.

189. User Engagement — The level of interaction users have with a website or app.

190. User Explorer — A user-level analysis feature historically available in Google Analytics; current GA4 analysis emphasizes privacy-conscious aggregated reporting and Explorations.

V

191. Views — The number of webpages or app screens viewed.

192. Value — A numerical amount assigned to an event or interaction to represent business value.

193. Video Engagement — Measurement of interactions with embedded videos, such as starts, progress milestones, and completions when supported by enhanced measurement or custom implementation.

194. Video Start — An event indicating that a tracked video has started playing.

195. Video Progress — An event indicating that a tracked video has reached a specified progress point.

W

196. Web Data Stream — A GA4 data stream used to collect data from a website.

197. Website Tagging — The implementation of tags that collect and send website interaction data to GA4.

198. Web Vitals — User-experience performance measurements such as loading speed, responsiveness, and visual stability, generally obtained through additional tools or implementations rather than standard GA4 reporting alone.

X

199. X-Axis — The horizontal axis of a chart, commonly used to display dates, categories, or dimensions.

Y

200. Year-over-Year (YoY) — A comparison of a metric or performance between a period and the corresponding period in the previous year.