12 KPIs Every Agency Should Include in Client Analytics Reports

A good client analytics report doesn't show everything. It shows the right things — the metrics that tell a clear story about progress toward goals, presented in a way your client can actually act on.

Too many agencies default to exporting whatever GA4 gives them and calling it a report. The result is pages of data that clients skim, don't understand, and ultimately don't trust.

Here are 12 KPIs worth including in most client reports — plus guidance on what each one means, why it matters, and how to present it.

1. Total Sessions (or Users)

What it is: The total number of visits to the site in the reporting period. Sessions count repeat visits from the same person; users count unique visitors.

Why it matters: It's the most fundamental measure of site reach. Clients understand it immediately.

How to present it: Show the current month number alongside last month and same period last year. A simple up/down arrow with the percentage change is enough. Use users if you want to emphasize reach; sessions if you want to emphasize activity volume.

2. Traffic by Channel

What it is: A breakdown of where visitors came from — organic search, direct, paid search, social, referral, email, etc.

Why it matters: It tells you which marketing activities are working. If organic is growing, SEO is paying off. If direct is high, brand awareness is building. If paid is the only thing moving, you have a dependency problem.

How to present it: A simple bar chart or table with the top 4-5 channels. Don't show every channel — group small ones into "Other." Use plain labels like "Google Search" rather than "Organic Search/Google." For tips on explaining these channels to clients, see how to explain website analytics to clients.

3. New vs. Returning Visitors

What it is: The proportion of visitors who are coming to the site for the first time vs. coming back.

Why it matters: High new visitor rates suggest your top-of-funnel is working. A healthy returning visitor rate suggests content or the product is engaging enough to bring people back. Both matter; the right balance depends on the business.

How to present it: A percentage split — "68% new, 32% returning" — with a brief sentence about what the balance means for this specific client.

4. Conversions (Total)

What it is: The total number of desired actions completed — form submissions, purchases, sign-ups, calls, whatever the client's primary goal is.

Why it matters: It's the metric clients care about most. Everything else in the report is context for this number. For guidance on how to frame this number in client conversations, see how to explain website analytics to clients.

How to present it: Lead with it, or make it visually prominent. Show the raw number, the month-over-month change, and — if you can — the cost per conversion if paid media is in play.

5. Conversion Rate

What it is: The percentage of visitors who completed a conversion action. Conversions ÷ Sessions × 100.

Why it matters: Raw conversion numbers can be misleading. If traffic doubled but conversions stayed flat, the conversion rate dropped — which means something in the funnel broke or the traffic quality declined.

How to present it: Alongside total conversions, always. "47 conversions from 2,800 sessions = 1.7% conversion rate, up from 1.4% last month."

6. Top Landing Pages

What it is: The pages where visitors first enter the site — not the most-viewed pages overall, but where people start.

Why it matters: It shows which content or campaigns are pulling people in. A blog post ranking well in Google might be your top landing page. A paid ad might be driving to a specific campaign page. Knowing this helps you understand what's actually driving traffic.

How to present it: A table with the top 5-7 landing pages, their session count, and their conversion rate. This last column is important — it tells you which entry points are actually turning into results.

7. Top Performing Pages (by Engagement)

What it is: Pages that are getting the most engagement — time on page, scroll depth, or return visits.

Why it matters: Different from landing pages. This tells you which content people actually value once they're on the site.

How to present it: Top 5 pages by engaged sessions. Useful for content marketing clients who want to know what's resonating.

8. Average Engagement Time (per Session)

What it is: How long visitors are actively engaging with the site per session. This replaced average session duration in GA4.

Why it matters: A very low engagement time (under 30 seconds) suggests poor traffic quality or a landing page problem. Higher engagement time generally indicates visitors are finding what they're looking for.

How to present it: A single number with a brief benchmark. Industry averages vary widely (e-commerce is often lower than content sites), so context matters.

9. Organic Search Traffic

What it is: Visitors who found the site through unpaid search results.

Why it matters: For most agency clients, SEO is either an active investment or a key traffic driver. Organic traffic trends tell the clearest story about whether that investment is paying off.

How to present it: Separately from total traffic, with a trend line if possible. Pair it with top organic landing pages and — if you're integrating Google Search Console — top keywords driving impressions and clicks.

10. Paid Traffic Performance

What it is: Visitors from paid search, paid social, or display ads — with associated cost data where possible.

Why it matters: Clients running paid campaigns need to see the return. Traffic from paid channels without conversion context is just a spend report.

How to present it: Sessions from paid channels, conversions attributed to paid, cost per conversion if you have spend data. This section works best when you pull in data from the ad platform directly rather than relying solely on GA4's attribution.

11. Mobile vs. Desktop Split

What it is: The percentage of traffic coming from mobile devices vs. desktop.

Why it matters: If 70% of traffic is mobile but the site has a poor mobile experience, that's a problem worth calling out. Conversion rates often vary significantly between devices — a low mobile conversion rate with high mobile traffic is a clear optimization signal.

How to present it: A simple percentage split, plus device-level conversion rates if they differ meaningfully.

12. Goal/Revenue Trend Over Time

What it is: A time-series view of conversions or revenue over the past 3-6 months.

Why it matters: Month-over-month comparisons are useful but can be noisy. A longer trend line helps clients see whether their business is genuinely growing, plateauing, or declining — and whether seasonality explains short-term dips.

How to present it: A line chart showing conversions or revenue by month. Add annotations for major campaigns, site changes, or external factors (holidays, algorithm updates) that explain notable movements.

What Not to Include

A few things that commonly show up in agency reports but rarely add value:

Raw pageview counts without session context
Bounce rate (or engagement rate) without explanation of what's normal for this site
Every traffic channel including tiny ones that drive 3 visits a month
Technical metrics (page speed scores, crawl stats) unless the client has specifically asked
Data that doesn't connect to a business outcome — if you can't explain why a client should care, cut it

A focused 6-metric report that tells a clear story is more valuable than a 20-metric report that leaves the client more confused than when they started.

Frequently Asked Questions

Should every client get the same report template? Start with a standard template, then customize based on each client's goals. A lead gen client and an e-commerce client need different conversion metrics. But the overall structure — traffic, sources, conversions, top pages, trend — applies to almost everyone.

How often should I send client analytics reports? Monthly is standard for most agency-client relationships. Weekly can make sense for active paid campaigns where decisions need to happen quickly. Quarterly summaries work well as a complement to monthly reports for big-picture conversations.

What tool should I use to build client reports? GA4 natively, Looker Studio, or a purpose-built agency reporting tool — it depends on your team size and how many clients you're managing. The goal is a format clients can read without your help explaining it.

Building reports that actually tell a clear story is easier with the right tool behind them. If you're still spending time deciding which metrics to pull and how to format them each month, Helpful Analytics gives you pre-built, client-ready dashboards that surface exactly these metrics — no setup required. Start your free trial and see how much cleaner client reporting can be.

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