Revision 1
Google Analytics

@namkyu · Sep 2, 2026, 7:30 AM
Added GA4 setup, events, key events, UTM workflows, practical measurement tips, integrations, limits, and alternatives.
+19,866−0
+# Quick Facts
+ 
+ 
+| Item                     | Details                                                                   |
+| ------------------------ | ------------------------------------------------------------------------- |
+| Main use                 | Website and app traffic, behavior, and marketing measurement              |
+| Best for                 | Website owners, marketers, ecommerce stores, SaaS, and content businesses |
+| Standard version         | Free                                                                      |
+| Enterprise version       | Google Analytics 360                                                      |
+| Current platform         | Google Analytics 4 (GA4)                                                  |
+| Data model               | Event-based                                                               |
+| Website installation     | Google tag, Google Tag Manager, or supported CMS integration              |
+| Standard data retention  | Up to 14 months for applicable user-level data                            |
+| Standard key event limit | 30 per property                                                           |
+| Useful integrations      | Google Ads, Search Console, BigQuery, Google Marketing Platform           |
+ 
+ 
+Google Analytics is most useful when it answers business questions such as:
+ 
+- Where are customers coming from?
+- Which pages attract useful traffic?
+- Which campaigns generate signups or purchases?
+- Where do users leave the funnel?
+- Which acquisition channels produce valuable customers?
+ 
+Installing Analytics alone is not enough. The useful part is deciding what actions matter and measuring those actions consistently.
+ 
+# Pricing
+ 
+Standard Google Analytics 4 properties are provided without charge.
+ 
+For most small and medium-sized businesses, the free version is sufficient.
+ 
+Google also offers **Google Analytics 360**, an enterprise version with:
+ 
+- Higher collection and configuration limits
+- Higher reporting limits
+- Longer data retention options
+- Expanded BigQuery capabilities
+- Service-level agreements
+- Enterprise support arrangements
+ 
+Google does not publish a simple fixed public price for Analytics 360. Businesses generally need to contact Google or an authorized sales partner for commercial terms.
+ 
+Do not assume an old Analytics 360 price found in third-party articles is still current.
+ 
+## Important Standard Limits
+ 
+Some current GA4 Standard property limits include:
+ 
+ 
+| Item                           | Standard Limit              |
+| ------------------------------ | ---------------------------: |
+| Audiences                      | 100                         |
+| Key events                     | 30                          |
+| Event-scoped custom dimensions | 50                          |
+| Event-scoped custom metrics    | 50                          |
+| User-scoped custom dimensions  | 25                          |
+| Saved comparisons              | 50                          |
+| Data retention                 | Up to 14 months             |
+| Exploration sampling threshold | 10 million events per query |
+ 
+ 
+Most normal business websites will not approach many of these limits.
+ 
+The 14-month retention limit matters more for businesses that want long-term user-level analysis.
+ 
+# What It Does
+ 
+Google Analytics records interactions as **events**.
+ 
+A simple ecommerce journey might look like:
+ 
+Landing page → `view_item` → `add_to_cart` → `begin_checkout` → `purchase`
+ 
+A lead-generation website might track:
+ 
+Google Search → Landing page → Pricing page → `generate_lead`
+ 
+Instead of only asking how many pageviews a website received, GA4 lets the business connect traffic sources with user actions.
+ 
+This makes Analytics useful alongside [SEO](https://incomewiki.com/wiki/seo), advertising, email marketing, and other acquisition channels.
+ 
+# Getting Started
+ 
+## 1. Create a GA4 Property
+ 
+Create a Google Analytics account and a GA4 property for the website or application.
+ 
+Then create a data stream for:
+ 
+- Web
+- iOS
+- Android
+ 
+A normal website uses a Web data stream.
+ 
+## 2. Install the Google Tag
+ 
+Google provides a Measurement ID associated with the web stream.
+ 
+It normally begins with:
+ 
+`G-`
+ 
+The tag can be installed through:
+ 
+- A CMS integration
+- Google Tag Manager
+- Manual website code
+ 
+Platforms such as Shopify, Wix, Squarespace, WordPress tools, and other supported systems may provide a field for the Google tag ID.
+ 
+For a custom [Website](https://incomewiki.com/wiki/website), the Google tag can also be installed directly in the site's code.
+ 
+## 3. Verify Realtime Data
+ 
+Visit the website after installation and open the Realtime report.
+ 
+Confirm that Analytics receives:
+ 
+- A user
+- Page views
+- Expected events
+ 
+Google states that initial data collection can take up to approximately 30 minutes to begin.
+ 
+Do this verification immediately instead of discovering weeks later that tracking was broken.
+ 
+## 4. Identify Important Business Actions
+ 
+Do not begin by creating dozens of custom events.
+ 
+Start with a few actions directly connected to the business.
+ 
+Examples:
+ 
+Ecommerce:
+ 
+- `view_item`
+- `add_to_cart`
+- `begin_checkout`
+- `purchase`
+ 
+Lead generation:
+ 
+- `generate_lead`
+- Form completion
+- Account signup
+- Booking completion
+ 
+Content:
+ 
+- Newsletter signup
+- Subscription
+- Important outbound click
+ 
+## 5. Mark Important Events as Key Events
+ 
+An event that matters to the business can be marked as a **key event**.
+ 
+For example:
+ 
+`generate_lead` → Key event
+ 
+or:
+ 
+`purchase` → Key event
+ 
+Key events make it easier to evaluate which traffic sources and campaigns lead to meaningful outcomes.
+ 
+# How to Use
+ 
+## Events
+ 
+GA4 uses events as the foundation of measurement.
+ 
+Some events are collected automatically.
+ 
+Enhanced Measurement can also collect interactions such as:
+ 
+- Page views
+- Scrolls
+- Outbound clicks
+- Site search
+- Video engagement
+- File downloads
+ 
+Other business-specific events may need to be configured.
+ 
+Google provides recommended event names for common activities.
+ 
+Use recommended events where possible instead of inventing custom names for common actions.
+ 
+For example, prefer:
+ 
+`generate_lead`
+ 
+rather than:
+ 
+`form_finished_123`
+ 
+when the first accurately describes the action.
+ 
+Standardized events work better with Google's existing reporting and integrations.
+ 
+## Event Parameters
+ 
+Parameters add context to an event.
+ 
+For example:
+ 
+`purchase`
+ 
+might include information about:
+ 
+- Transaction ID
+- Value
+- Currency
+- Products
+ 
+A click event might include details about:
+ 
+- Link URL
+- Button
+- Page
+- Content
+ 
+Think of an event as **what happened** and parameters as **details about what happened**.
+ 
+## Key Events and Conversions
+ 
+GA4 separates important Analytics events from advertising conversions.
+ 
+The current model can be summarized as:
+ 
+Event → Key Event → Google Ads Conversion
+ 
+An event can be marked as a key event when it represents an important business action.
+ 
+If that action should also be used for Google Ads campaign measurement or bidding, a conversion can be created from the key event.
+ 
+Do not mark every interaction as a key event.
+ 
+A scroll is usually less valuable than:
+ 
+- Purchase
+- Subscription
+- Qualified lead
+- Trial signup
+ 
+# Practical Workflows
+ 
+## Marketing Campaign Measurement
+ 
+Email / Social / Campaign → UTM link → Landing page → User action → Key event
+ 
+Add UTM parameters to external campaign links so Analytics can identify where traffic originated.
+ 
+Important parameters include:
+ 
+- `utm_source`
+- `utm_medium`
+- `utm_campaign`
+ 
+For example:
+ 
+`utm_source=newsletter`
+ 
+`utm_medium=email`
+ 
+`utm_campaign=summer_sale`
+ 
+Google recommends consistently using source, medium, and campaign.
+ 
+The main failure point is inconsistent naming.
+ 
+For example:
+ 
+`facebook`
+ 
+`Facebook`
+ 
+`fb`
+ 
+can create fragmented reporting for what was intended to be one source.
+ 
+Choose a naming convention and keep it consistent.
+ 
+## Lead Generation
+ 
+Search or ad → Landing page → Form submission → `generate_lead` → Key event
+ 
+Instead of optimizing around pageviews, measure completed leads.
+ 
+You can then compare:
+ 
+- Organic search
+- Paid search
+- Social
+- Referral traffic
+- Email
+ 
+based on actual lead generation.
+ 
+This is especially useful for service businesses such as [Freelancing](https://incomewiki.com/wiki/freelancing) and consulting.
+ 
+## Ecommerce Funnel
+ 
+Product view → Add to cart → Checkout → Purchase
+ 
+An ecommerce store can compare how many users reach each stage.
+ 
+For example:
+ 
+1,000 product viewers  
+→ 100 add to cart  
+→ 60 begin checkout  
+→ 40 purchases
+ 
+This immediately shows that improving product-to-cart conversion could have more impact than simply increasing traffic.
+ 
+Stores built around platforms such as [WooCommerce](https://incomewiki.com/wiki/woocommerce) can use Analytics alongside native store reporting.
+ 
+# Tips &amp; Best Practices
+ 
+## Measure Business Outcomes, Not Everything
+ 
+Tracking more events does not automatically produce better analytics.
+ 
+Begin with questions such as:
+ 
+- Did the visitor purchase?
+- Did they register?
+- Did they become a lead?
+- Did they subscribe?
+ 
+Then collect the events required to answer those questions.
+ 
+## Use Recommended Events
+ 
+Google maintains standardized recommended events for activities such as:
+ 
+- Login
+- Signup
+- Lead generation
+- Ecommerce
+- Purchases
+ 
+Use these when they match the action.
+ 
+Custom events are useful when the interaction genuinely has no appropriate standard event.
+ 
+## Create a Consistent UTM Convention
+ 
+UTM values are case-sensitive.
+ 
+For example:
+ 
+`utm_source=linkedin`
+ 
+and:
+ 
+`utm_source=LinkedIn`
+ 
+can appear separately.
+ 
+A simple convention might be:
+ 
+- Lowercase values
+- Stable source names
+- Standard medium names
+- Human-readable campaign names
+ 
+Document the convention before several people begin creating campaign URLs.
+ 
+## Do Not Add UTMs to Internal Links
+ 
+UTM parameters are intended for identifying external campaign traffic.
+ 
+Using them on links between pages of your own website can overwrite acquisition information and make attribution harder to interpret.
+ 
+Use normal internal links for site navigation.
+ 
+## Test Events Before Trusting Reports
+ 
+Use:
+ 
+- Realtime
+- DebugView
+ 
+to confirm that important events actually fire.
+ 
+Test the complete user journey.
+ 
+For example:
+ 
+Submit form → Confirm `generate_lead` → Verify parameter → Check key event
+ 
+Do this before running a major advertising campaign.
+ 
+## Do Not Mark Every Event as a Key Event
+ 
+GA4 Standard properties support up to 30 key events.
+ 
+More importantly, excessive key events make business reporting noisy.
+ 
+Reserve them for actions that represent meaningful outcomes.
+ 
+## Remember That Reports Are Not Always Immediate
+ 
+Realtime data can appear within minutes.
+ 
+Standard property intraday processing typically takes around:
+ 
+**2–6 hours**
+ 
+Some daily processing can take longer.
+ 
+Do not assume missing data from the last few minutes means tracking failed.
+ 
+# Business Uses
+ 
+## Marketing Attribution
+ 
+Analytics can compare traffic and outcomes across channels such as:
+ 
+- Organic search
+- Paid search
+- Email
+- Social
+- Referral traffic
+- Direct visits
+ 
+This helps businesses allocate marketing effort based on outcomes rather than traffic alone.
+ 
+## SEO Analysis
+ 
+Google Analytics shows what users do **after reaching the website**.
+ 
+Search-performance tools show how people discovered the site.
+ 
+Together they help answer:
+ 
+Search query → Landing page → Engagement → Key event
+ 
+For an [SEO](https://incomewiki.com/wiki/seo) strategy, traffic growth matters less if the visitors never complete useful actions.
+ 
+## Ecommerce
+ 
+Stores can analyze:
+ 
+- Product views
+- Add-to-cart behavior
+- Checkout activity
+- Purchases
+- Revenue
+- Acquisition channels
+ 
+This helps identify whether the primary problem is traffic, product-page conversion, checkout abandonment, or customer acquisition.
+ 
+## SaaS and Online Products
+ 
+A [SaaS](https://incomewiki.com/wiki/saas) business might measure:
+ 
+Visitor → Signup → Trial → Subscription
+ 
+GA4 can provide acquisition and behavioral measurement, while the product's own database should normally remain the source of truth for billing and account status.
+ 
+# Integrations
+ 
+## Google Ads
+ 
+Linking Google Ads and Analytics can connect advertising traffic with on-site behavior and key events.
+ 
+Important business events can also be used to create Google Ads conversions.
+ 
+This is useful when optimizing campaigns toward:
+ 
+- Purchases
+- Leads
+- Registrations
+ 
+rather than clicks alone.
+ 
+## Google Search Console
+ 
+Analytics can be linked with Search Console.
+ 
+The integration can provide reports combining organic-search information with website behavior.
+ 
+This helps connect:
+ 
+Search visibility → Click → Landing page → User behavior
+ 
+## BigQuery
+ 
+GA4 can export data to BigQuery for deeper analysis.
+ 
+This becomes useful when businesses need:
+ 
+- Raw event-level analysis
+- Custom reporting
+- Data warehouse integration
+- Joining Analytics with business databases
+ 
+Most small websites do not need BigQuery immediately.
+ 
+Start with standard reports and Explorations.
+ 
+## Google Tag Manager
+ 
+Google Tag Manager can manage Analytics and other marketing tags without manually changing application code for every tracking adjustment.
+ 
+It becomes especially useful when a business needs:
+ 
+- Custom events
+- Multiple marketing pixels
+- More complex triggers
+- Centralized tag management
+ 
+# Advanced Use
+ 
+## Explorations
+ 
+Explorations allow more flexible analysis than standard reports.
+ 
+Useful examples include:
+ 
+- Funnel exploration
+- Path exploration
+- Segment comparisons
+- User behavior analysis
+ 
+A funnel might show:
+ 
+Product page → Cart → Checkout → Purchase
+ 
+This makes drop-off easier to identify.
+ 
+Standard GA4 properties can encounter sampling in Explorations when ad-hoc queries process more than **10 million events**.
+ 
+For normal small websites, this is rarely the first limitation encountered.
+ 
+## Custom Dimensions
+ 
+Custom dimensions allow event parameters or user properties to become available for reporting.
+ 
+Do not create them for every possible parameter.
+ 
+Standard properties currently allow:
+ 
+- 50 event-scoped custom dimensions
+- 25 user-scoped custom dimensions
+ 
+Use them for dimensions you expect to analyze repeatedly.
+ 
+# Limitations &amp; Common Mistakes
+ 
+## Analytics Is Not a Perfect Accounting System
+ 
+Google Analytics should not normally be the authoritative source for:
+ 
+- Bank revenue
+- Subscription status
+- Inventory
+- Taxes
+- Accounting
+ 
+Tracking can be affected by:
+ 
+- Consent choices
+- Browser restrictions
+- Ad blockers
+- Tag failures
+- Network problems
+ 
+Use the business database or payment platform as the source of truth for financial transactions.
+ 
+## Bad Tracking Creates Misleading Reports
+ 
+A sophisticated dashboard built on incorrect events is still incorrect.
+ 
+Common problems include:
+ 
+- Duplicate tags
+- Purchase events firing twice
+- Forms triggering before successful submission
+- Missing cross-domain tracking
+- Inconsistent UTM naming
+ 
+Validate data collection before making important decisions from it.
+ 
+## Standard Data Retention Is Limited
+ 
+GA4 Standard user-level and event-level data retention used by certain analyses can be configured up to 14 months.
+ 
+Businesses needing longer historical analysis may need:
+ 
+- BigQuery exports
+- Their own data warehouse
+- Analytics 360
+ 
+Plan this before historical data becomes unavailable.
+ 
+## Privacy and Consent Still Matter
+ 
+Installing Google Analytics does not remove the website owner's responsibility for privacy and consent requirements.
+ 
+Applicable requirements depend on:
+ 
+- Jurisdiction
+- Data collected
+- Advertising features
+- Consent setup
+ 
+Configure tracking according to the business's legal and privacy requirements.
+ 
+# Alternatives
+ 
+ 
+| Tool                | Best Fit                                                    | Main Difference                                          |
+| ------------------- | ----------------------------------------------------------- | -------------------------------------------------------- |
+| Google Analytics    | General website, app, and marketing analytics               | Broad free feature set and Google ecosystem integrations |
+| Plausible Analytics | Simpler website analytics                                   | More focused reporting and simpler interface             |
+| Matomo              | Businesses wanting more deployment and data-control options | Can be self-hosted                                       |
+| Adobe Analytics     | Large enterprise analytics programs                         | Enterprise-focused customization and analysis            |
+ 
+ 
+Choose Google Analytics when:
+ 
+- You need free web or app analytics
+- Google Ads integration matters
+- Ecommerce or event tracking is required
+- You want advanced reporting without immediately buying an enterprise platform
+ 
+Consider an alternative when:
+ 
+- You only need simple traffic reporting
+- A lighter interface is more important
+- Self-hosting is required
+- Your organization needs a different enterprise analytics stack
+ 
+# FAQ
+ 
+## Is Google Analytics free?
+ 
+Yes. Standard Google Analytics 4 properties are provided without charge.
+ 
+Google Analytics 360 is the premium enterprise version.
+ 
+## What is GA4?
+ 
+GA4 is the current generation of Google Analytics.
+ 
+It uses an event-based measurement model for websites and applications.
+ 
+Universal Analytics stopped processing new data for standard properties in 2023.
+ 
+## What should I track first?
+ 
+Start with actions tied directly to the business, such as:
+ 
+- Purchases
+- Leads
+- Signups
+- Subscriptions
+ 
+Avoid creating unnecessary events before the important measurement is working.
+ 
+## What is a key event?
+ 
+A key event is an Analytics event marked as particularly important to the success of the business.
+ 
+For example, `purchase` or `generate_lead` can be treated as key events.
+ 
+## Should I use Google Tag Manager?
+ 
+Not necessarily for a simple website.
+ 
+A direct Google tag or CMS integration can be enough.
+ 
+Google Tag Manager becomes more useful when managing multiple tags, custom triggers, advertising pixels, or more complex event tracking.
+ 
+## Is Google Analytics accurate enough for revenue reporting?
+ 
+It is useful for marketing and behavioral analysis, but it should not replace your payment processor, ecommerce database, or accounting system as the authoritative record of revenue.
+ 
+# Sources
+ 
+- [Google Analytics](https://marketingplatform.google.com/about/analytics/)
+- [Google Analytics Terms of Service — Fees and Service](https://marketingplatform.google.com/about/analytics/terms/us/)
+- [Google Analytics Help — Set Up Analytics for a Website or App](https://support.google.com/analytics/answer/14183469)
+- [Google Analytics Help — Set Up Your Google Tag](https://support.google.com/analytics/answer/15756615)
+- [Google Analytics Help — Recommended Events](https://support.google.com/analytics/answer/9267735)
+- [Google Analytics Help — Event Parameters](https://support.google.com/analytics/answer/13675006)
+- [Google Analytics Help — About Key Events](https://support.google.com/analytics/answer/9267568)
+- [Google Analytics Help — Mark Events as Key Events](https://support.google.com/analytics/answer/13128484)
+- [Google Analytics Help — Creating and Managing Conversions](https://support.google.com/analytics/answer/14710559)
+- [Google Analytics Help — Configuration Limits](https://support.google.com/analytics/answer/12229528)
+- [Google Analytics Help — Data Freshness](https://support.google.com/analytics/answer/12233314)
+- [Google Analytics Help — Campaign URLs and UTM Parameters](https://support.google.com/analytics/answer/10917952)
+- [Google Analytics Help — Connect Search Console to Google Analytics](https://support.google.com/analytics/answer/10737381)
+- [Google Analytics Help — Google Analytics 360](https://support.google.com/analytics/answer/11202874)