Google Ads Audit: A 9-Point Checklist for Ecommerce Brands

Most Google Ads audits look at the wrong thing first. Someone opens the account, glances at ROAS, decides it looks fine or looks bad, and starts moving bids. Here is the problem. If tracking is broken, or branded and non-branded spend are tangled together in the same campaign, every number on that screen is fiction, and you are about to optimize toward a lie.

Across the DTC accounts we audit at Sweat Pants Agency, managing $6–9M a month in combined ad spend, the biggest wins almost never come from smarter bidding. They come from fixing what the account was measuring wrong.

This is the 9-point checklist we run before we touch a single campaign.

What Is a Google Ads Audit?

A Google Ads audit is a systematic review of an account's tracking, structure, targeting, and spend efficiency, run to find where budget leaks and where real performance is hidden by bad structure. It is not the same as routine optimization.

Optimization works inside the existing structure, adjusting bids, budgets, and copy week to week. An audit questions the structure itself: whether the campaigns are built right, whether the account is measuring what it thinks it is measuring, and whether spend maps to margin.

You optimize on a schedule and audit when you need to know whether the foundation under all that optimization is sound.

Why a Structural Audit Moves Revenue

Structure moves revenue because most paid search problems are measurement problems wearing a tactical costume. When we split branded from non-branded for Houndsy, non-branded revenue grew 105% while CAC held flat at $45. The account was not losing on bids or ad copy. It was mismeasured.

Branded and non-branded spend were blended into one view, so the numbers made the whole account look efficient while new-customer acquisition quietly stalled underneath.

That is the pattern we see again and again. The lever people reach for is the tactic. The lever that actually moves the number is the structure sitting underneath it.

How to Audit a Google Ads Account

To audit a Google Ads account, pull a 90-day window, segment by campaign type, and export everything before you change a single setting. Then audit in a fixed order: tracking, then structure, then spend, then targets.

That order is the whole method. A problem upstream invalidates everything downstream, so if tracking is wrong, your structure analysis is built on bad data and your spend decisions are worse than a coin flip.

Get read-only access at minimum. Write down what you cannot see without admin or standard access, like billing, change history, and some account-level exclusions, and flag those gaps instead of guessing around them.

One discipline separates a real audit from a busy afternoon: write every finding down before you fix any of them. Fixing as you go hides the pattern. It is the same rule we hold to on the media side, where you fix attribution before you optimize, because scaling decisions made on bad data just produce bad outcomes faster.

The 9-Point Google Ads Audit Checklist

Nine points, each with a pass or fail signal. Run them in order. The first is a gate: if it fails, stop and fix it before you read anything else.

1. Conversion Tracking and Data Accuracy

Start here, because if tracking is wrong, nothing below it is worth reading. Check for duplicate conversions, GA4 goals imported into Google Ads and double-counting, conversion actions firing on the wrong event, and “All conversions” showing up in reporting when you meant “Conversions.” Then reconcile platform conversions against actual Shopify orders for the same window. Google's conversion tracking setup documentation covers the specifics.

2. Branded vs Non-Branded Separation

The case for splitting brand from non-brand is settled, so this point is about the mechanics. Check whether branded and non-branded terms live in separate campaigns, whether brand terms are negated out of the non-branded campaigns, and whether brand is leaking back in through broad match or Dynamic Search Ads. Once split, each half gets judged on its own job: brand on efficiency, non-branded on incremental new customers.

3. Performance Max: What Is It Absorbing?

This is the point most audit checklists skip, and it is where the money hides now. Performance Max serves across Search, Shopping, YouTube, Display, Gmail, and Maps from one campaign, and left alone it will swallow your cheap branded search traffic and report it as its own performance.

Check whether campaign-level brand exclusions are applied, whether you are steering with search themes or leaning only on asset-group targeting, whether Shopping and PMax are fighting over the same products (use listing group exclusions if they are), and what the channel breakdown in reporting actually shows. Google's Performance Max control documentation covers the current settings.

One distinction worth getting right: use brand exclusions, not negative keywords, to stop paying for your own brand. Brand exclusions automatically catch misspellings, variants, and sub-brands, while negative keywords are a blunter, more restrictive control that Google recommends saving for brand safety and genuinely irrelevant terms.

Rebalancing branded and non-branded and segmenting the asset groups is how Andover Audio grew revenue 85% on 13% more spend.

4. Campaign Structure and Consolidation

The question is whether your structure has a reason. Too many thin campaigns split the conversion signal so the algorithm never gets enough data to learn. One giant catch-all campaign hides everything. Check naming conventions, campaign count against your actual conversion volume, and whether the structure reflects margin or just mirrors your product catalog.

5. The Product Feed

For an ecommerce account, the feed is half the account, so audit it like one. Check that product titles are written for how people search, not how your warehouse labels things. Look for missing GTINs, active disapprovals, and out-of-stock products still serving ads. Confirm your highest-margin products get feed priority instead of sitting behind low-margin filler.

6. Budget Allocation and Bidding Strategy

Budget should follow current contribution, not last quarter's habits. Check whether spend maps to where the margin is now, whether tCPA and tROAS targets were set once and never revisited, and whether some campaigns hit their daily cap while others underspend. Reallocation is often the fastest win in the audit. How to divide spend by contribution is its own ecommerce marketing budget breakdown.

7. Negative Keywords and Wasted Spend

Wasted spend hides in the search terms report. Check your search-term mining cadence, whether negative lists sit at the account or campaign level, and whether low-intent patterns are slipping through: research queries, job seekers, competitor names, and anything with “free” in it. Negative keyword support now extends to Performance Max too, so the old excuse for letting PMax waste run is gone.

8. Audiences and First-Party Data

Your customer data is a targeting asset most accounts leave idle. Check whether Customer Match lists are uploaded and refreshed, whether existing customers are excluded from prospecting campaigns, whether retargeting windows match your real purchase cycle, and whether high-LTV segments are fed back in as signals.

9. Judging Performance: Contribution Margin, Not Platform ROAS

This is where most audits end and ours begins. Platform ROAS tells you what Google can see inside its own box. It does not tell you whether the account is making money. Treat campaign-level ROAS as an in-platform optimization signal, useful for steering bids inside a campaign.

Judge the account itself on contribution margin and blended MER, which account for margin, shipping, discounts, and the conversions Google never sees. We make the full case in why MER beats ROAS and how CAC and CPA measure different things.

The Checklist at a Glance

Which Findings to Fix First

Fix in the same order you audited: tracking first, then brand and non-brand separation, then PMax containment, then budget. The sequence is not arbitrary. Tracking comes first every time, because every decision downstream inherits its accuracy, and there is no point analyzing structure on numbers you cannot trust.

Brand and non-brand separation comes next, because until spend is split you cannot judge any campaign on its real job. Then PMax containment, since an uncontained campaign keeps distorting the branded picture you just untangled.

Budget comes last, and this is the part people get backward. Reallocating budget on top of broken tracking does not fix anything. It moves the error around faster, with more money riding on it. If you only have time for one fix this week, make it tracking. Working the sequence in this order is what our Google Ads team does first on every account.

How Often Should You Audit a Google Ads Account?

Run a full structural audit quarterly, check search terms and feed health monthly, and run a trigger-based audit any time something material changes. Quarterly catches structural drift without turning the account into a construction site.

Monthly search-term and feed checks are cheap insurance against wasted spend and disapprovals piling up. The trigger-based audits are the ones people skip and regret: a sudden spend change, onboarding or offboarding an agency, or a Google product shift like the Performance Max control changes.

Any of those makes the old audit stale overnight, so treat it as a reason to reconcile the numbers again.

Frequently Asked Questions