PPC | PAID SEARCH | GOOGLE ADS | PPC KPIS | The 8 Most Important PPC KPIs You Should Be Tracking

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3 days ago
3 min read

Article by Brooke Osmundson

Learn which PPC KPIs truly matter, move beyond vanity metrics, and report performance in a way that protects your budget and proves real business growth.

If your PPC performance reports still start with vanity metrics like click-through rate and impressions, you’re only seeing the surface of performance.

Executives are not impressed by screenshots of green arrows. They want to know if paid media is adding profit, building pipeline value, and supporting long-term growth.

That is a much higher bar than “our CTR went up this month!”

At the same time, running PPC campaigns has become more complicated, even with the help of AI.

Privacy rules limit what we can track. AI is now shaping everything from the auctions to the creatives used in your ads. All the while, users bounce between devices, different channels, and intent states before they even think about converting.

In that type of environment, old comfort metrics lose their value quickly. A good CPC or a strong CTR might look nice in a deck, but it tells you very little about the business impact.

This guide focuses on the PPC key performance indicators that should matter the most. Profit, incrementality, lifetime value, and contribution to revenue give you a clearer picture of whether your campaigns are worth the investment.

The goal is simple: help you report on PPC in a way that earns trust throughout the leadership team, protects your marketing budget, and reflects the real value you create.

1. Profit (Not Just ROAS)

Return on ad spend (ROAS) has long been the default north star in PPC reporting, but frankly, it’s overdue for a demotion.

On its own, ROAS offers a dangerously incomplete picture. It tells you how much revenue was generated for every dollar spent – but revenue isn’t profit.

A campaign might boast a stellar 600% ROAS, but if fulfillment costs, discounts, or shipping fees gobble up 70% of that revenue, what are you really left with?

On the other hand, a modest-looking 300% ROAS campaign could quietly be generating double the profit if it’s driving high-margin sales.

Today’s best-in-class PPC teams know this and build profit measurement directly into their strategy.

They’re calculating contribution margins at the product level and adjusting revenue numbers accordingly before feeding that data back into Google Ads or Microsoft Ads.

This lets algorithms optimize toward profit – not just revenue – giving teams a competitive edge over advertisers still stuck reporting on inflated ROAS figures.

When you can walk into a CMO’s office and confidently show not just “here’s what we sold,” but “here’s what we made,” you earn a different kind of respect.

2. Incrementality (The “Would You Have Gotten This Anyway?” Metric)

This is the KPI that separates marketers who report from those who understand.

Incrementality forces you to ask: Did this sale happen because of PPC, or would it have happened anyway?

In the old days, you might have taken every conversion at face value, especially if it showed up as the last click.

Today, with attribution becoming less precise and users bouncing between channels, platforms, and devices, you can’t afford to make that assumption.

Incrementality gets to the heart of what you’re actually contributing to the business. It’s about quantifying the lift your campaigns generate beyond what would have happened without paid media.

Whether through holdout tests, geo-based experiments, or platform-led lift studies, advertisers investing in incrementality measurement consistently find out that some campaigns – often brand and remarketing – are less impactful than they seem.

Sure, measuring incrementality is messy. It doesn’t fit neatly into Google’s default reporting.

However, CMOs don’t want to see PPC taking credit for revenue that would’ve closed regardless. They want to know what’s working because of paid media, not just what’s being tagged by it.

Advertisers who commit to measuring incrementality make better budgeting decisions and protect themselves from over-investing in campaigns that are just skimming the top.

3. Customer Lifetime Value (CLV Or LTV)

There’s no excuse for ignoring Lifetime Value (LTV) today.