@pasar6987/ga4-core

GA4 Core Analytics — the foundational measurement backbone covering user identity, session acquisition, event interactions, and temporal analysis axes that power every Google Analytics 4 report.

Overview

	Count
Datasets	4
Dimensions	73
Metrics	27
Relationships	2

Datasets

User

Visitor identity and audience segments — user IDs, new vs returning classification, demographics, and audience membership that define who is interacting with your property.

• Dimensions: 10
• Metrics: 10

Session

Visit-level acquisition context — how users arrived at your site or app, including channel groups, campaign parameters, source/medium, and session-scoped UTM values.

• Dimensions: 19
• Metrics: 8

Event

Interaction-level tracking — event names, key event flags, content groups, file downloads, outbound clicks, scroll depth, search terms, and gaming events.

• Dimensions: 21
• Metrics: 7

Temporal

Time-based analysis axes — dates, hours, days of week, ISO weeks, cohort offsets, and nth-period dimensions for trending, seasonality, and cohort retention analysis.

• Dimensions: 23
• Metrics: 2

Metrics

• activeUsers — The number of distinct users who visited your site or app.
• newUsers — The number of users who interacted with your site or launched your app for the first time.
• totalUsers — The total number of unique users who logged an event.
• active1DayUsers — The number of distinct active users on your site or app within a 1-day period.
• active7DayUsers — The number of distinct active users on your site or app within a 7-day period.
• active28DayUsers — The number of distinct active users on your site or app within a 28-day period.
• newUserRate — The percentage of new users (newUsers / totalUsers).
• dauPerMau — The rolling percent of 28-day active users who are also 1-day active users.
• dauPerWau — The rolling percent of 7-day active users who are also 1-day active users.
• wauPerMau — The rolling percent of 28-day active users who are also 7-day active users.
• sessions — The number of sessions that began on your site or app.
• sessionsPerUser — The average number of sessions per user.
• engagedSessions — The number of sessions that lasted longer than 10 seconds, or had a key event, or had 2+ screen/page views.
• bounceRate — The percentage of sessions that were not engaged sessions.
• engagementRate — The percentage of engaged sessions (engagedSessions / sessions).
• averageSessionDuration — The average duration (in seconds) of users' sessions.
• crashAffectedUsers — The number of users that experienced a crash.
• crashFreeUsersRate — The percentage of users who did not experience a crash.
• eventCount — The count of events.
• eventCountPerUser — The average number of events per user.
• eventValue — The sum of the event parameter named value.
• conversions — The count of key events (conversions).
• userKeyEventRate — The percentage of users who triggered a key event.
• sessionKeyEventRate — The percentage of sessions in which a key event was triggered.
• keyEvents — The count of key events.
• cohortActiveUsers — The number of users in the cohort who are active in the time window.
• cohortTotalUsers — The total number of users in the cohort.

Install

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Source

GA4 Data API Schema