GA4 101 for Marketing Sites: What to Track and Why

What GA4 is (and isn’t)

GA4 isn’t hard because it’s complex—it’s hard because it’s different. GA4 is event-based and designed to measure behavior across a journey, not just pageviews.

GA4 is

• Event-first (everything is an event)
• Better for funnels and paths
• Designed to work across devices and sessions
• Built for modern privacy and measurement tradeoffs

GA4 is not

• A plug-and-play replacement for Universal Analytics
• Useful without intentional event planning
• A magical report that tells you what to do

Start with outcomes, not events

Before you implement anything, define what “success” means for the site. Once outcomes are clear, the events you need are obvious.

Common marketing outcomes

• Lead form submissions
• Booked calls or demos
• Key CTA clicks that indicate intent
• Campaign-specific actions (registrations, downloads)
• Funnel progression (not just last-click conversions)

Your goal is to answer: What are users doing that moves them closer to becoming a lead or customer?

What to track (Tier 1–3)

Don’t “track everything.” Use a tiered model so GA4 stays clean, interpretable, and decision-ready.

Key events every marketing site should track

1) CTA clicks

Track clicks on primary CTAs in hero sections, mid-page blocks, sticky headers, and footers. CTA clicks reveal if messaging and intent alignment are working.

2) Forms (start → submit → success)

Don’t only track “submit.” Track form start and form success so you can see friction before the final action.

3) Content engagement (for content-led sites)

If blog content supports conversions, track meaningful content interactions like downloads, internal search, and engagement on key posts that lead to service pages.

4) Campaign-specific actions

Campaign landing pages should have dedicated events tied to UTMs. If you don’t do this, attribution becomes guesswork.

Funnels: GA4’s real strength

Funnels show where users drop off. They’re the fastest way to identify friction across landing pages, CTAs, and forms.

Common marketing funnels

• Landing page → CTA click → Form start → Form submit/success
• Blog post → Service page → CTA click → Conversion
• Campaign page → Scroll/engagement → CTA click → Conversion

Naming conventions that save your sanity

Bad naming destroys reporting. Keep event names stable and use parameters for detail.

Good event names (examples)

• cta_click
• form_start
• form_submit
• form_success
• download_click

Helpful parameters (examples)

• cta_text (what the button said)
• cta_location (hero, mid, footer)
• form_id or form_name
• page_type (service, landing, blog)
• campaign (from UTM mapping)

Reports that actually matter

Ignore most default dashboards at first. Build a small set of views that answer business questions.

• Conversions by traffic source (what channels drive real outcomes)
• Landing page → conversion (which entry points perform)
• Funnel exploration (where friction exists)
• Path exploration (what users do before converting)

GA4 tells you what happened. Pair it with heatmaps/session recordings and CRM data to understand why.

A simple GA4 setup roadmap

1. Define 3–5 business outcomes
2. Map funnel steps backward
3. Define Tier 1 and Tier 2 events
4. Implement via Google Tag Manager (recommended)
5. Validate events with real interactions
6. Mark conversions in GA4
7. Create 2–3 core reports you’ll actually use

Quick GA4 checklist for marketing sites