North American Media Experts
Stop guessing what's wrong with your Google Ads. This 10-step audit checklist finds wasted spend, fixes Quality Scores, and lowers your CPA in 2026.
9 min read
Research consistently shows that the majority of Google Ads accounts waste 20–40% of their monthly budget. On a $10,000/month account, that's $2,000–$4,000 in misallocated spend — paying for clicks that will never convert, keywords that serve irrelevant queries, and ads pointing to landing pages that undermine the work your targeting did to get someone to click. The problem is that this waste is often invisible. Campaigns look like they're running. Clicks are coming in. But underneath the surface, structural and technical issues are quietly dragging performance down.
A Google Ads account audit is the diagnostic process that surfaces these issues. Done properly, an audit examines every layer of an account — from conversion tracking to ad copy to landing page experience — and produces a prioritized action plan for improvement. This 10-step checklist is how our paid search management team approaches an audit on any new or underperforming account. Work through each step in order, and by the end, you'll have a clear picture of where your budget is going and exactly what to fix first.
Every optimization decision in Google Ads flows downstream from conversion data. If your conversion tracking is broken, duplicated, or miscounted, everything else — smart bidding, audience targeting, performance analysis — is built on sand. This is the single most common issue found in account audits, and it's the one most often overlooked because campaigns appear to be working fine on the surface.
Check the following in order: Confirm that your Google Ads conversion tag (or GA4 import) is firing on the correct thank-you or confirmation page — not on the form page itself. Pull the Conversions column in your campaign view and verify the numbers feel plausible relative to actual business outcomes. Look for duplicate conversion actions that inflate counts artificially. Make sure your primary conversion action is set as Primary and that micro-conversions like button clicks are set to Secondary so they don't contaminate smart bidding signals. If you're importing goals from GA4, verify those goals are active and pulling current data.
A well-structured Google Ads account separates campaigns by business objective, audience temperature, and keyword intent. Mixing branded terms with non-branded terms in the same campaign, or consolidating multiple product lines into a single ad group, creates budget competition and makes optimization nearly impossible.
Pull a view of your account's campaign structure and ask: Are branded and non-branded campaigns separated? (They should be — branded keywords are cheap, high-converting, and will absorb acquisition budget if mixed in.) Are campaigns organized around distinct product categories or service lines? Are your ad groups tightly themed, each containing a cluster of closely related keywords rather than a catch-all mix? Finally, check budget allocation: are your best-performing campaigns budget-constrained while weaker campaigns have headroom to spend? Reallocating budget from low-performing campaigns to high-performers is one of the fastest efficiency levers available. See our guide on how to set a Google Ads budget that actually performs for the right sizing framework.
The Search Terms Report is the single most revealing document in any Google Ads account. It shows the actual queries that triggered your ads — not just the keywords you bid on, but the real-world searches that matched to them. In most accounts running broad match keywords, this report surfaces a significant amount of irrelevant traffic the account is paying for every day.
Export the Search Terms Report for the last 90 days, filtered to show terms with at least one click. Sort by cost, descending. Work through the list from most expensive to least and tag each term as: relevant and should be added as an exact match keyword; irrelevant and should be added as a negative keyword; or borderline. This step alone routinely surfaces 20–30% of budget being wasted on low-intent or off-topic queries. The goal isn't just to cut waste — it's to discover high-performing long-tail queries your current keyword structure is inadvertently burying under broader match types.
Negative keyword hygiene is one of the most underrated optimization levers in paid search. Most accounts have negative keyword lists that were set up at launch and never revisited. The result is compounding waste — as Google expands broad match to reach new queries, poorly maintained negative lists fail to block an ever-growing set of irrelevant searches.
Start by reviewing the negative keyword list view in your account. Check which negatives are set at the campaign level versus the account level — account-level negatives apply across every campaign and are the most efficient to manage. Cross-reference against your Search Terms Report output from Step 3: every irrelevant term you flagged there should become a negative here. Also audit for internal negatives: make sure your branded campaign excludes non-brand terms, and your non-brand campaigns exclude your brand name, so campaigns don't compete against each other for the same queries and artificially inflate your own costs.
Quality Score is Google's 1–10 rating of the relevance and quality of your keywords, ads, and landing pages. A low Quality Score raises your effective CPC and reduces ad position — sometimes dramatically. A keyword sitting at a Quality Score of 3 can cost 50–75% more per click than the same keyword at a score of 8, for the same position in the auction.
Pull the keyword view and add the Quality Score, Expected CTR, Ad Relevance, and Landing Page Experience columns. Sort by cost descending and focus on your highest-spending keywords first. For any keyword below 6/10, diagnose which component is dragging it down. Low Expected CTR usually means the ad copy isn't compelling or doesn't match the keyword's search intent. Low Ad Relevance means the keyword is in an ad group whose messaging doesn't tightly reflect it — either tighten the ad group theme or move the keyword to a more relevant one. Low Landing Page Experience points to a mismatch between what the ad promises and what the destination page delivers. Our full approach to maximizing paid search ROI covers landing page optimization in depth.
In 2026, Google has continued to push advertisers toward broad match, and smart bidding has matured considerably. But broad match without tight guardrails — strong negatives, clear conversion signals, well-segmented audiences — remains a meaningful source of wasted spend for accounts that haven't built those safeguards.
Pull a breakdown of spend by match type across all search campaigns and compare conversion rate and cost per conversion for exact, phrase, and broad match keywords running on the same terms. If broad match is delivering a dramatically higher CPA, that's a signal to add more negatives, tighten your audience layers, or reduce broad match bids until conversion volume justifies the premium. On bidding strategy: if you're running Target CPA or Target ROAS, verify that each campaign has at least 50 conversions in the past 30 days. Below that threshold, smart bidding lacks sufficient signal to optimize effectively. Campaigns below this volume are often better managed on Maximize Clicks with a manual CPC cap while conversion data accumulates.
Ad copy is where you earn the click or lose it to a competitor. Pull your Responsive Search Ads and check asset performance ratings — Google rates each headline and description as Low, Good, or Best based on engagement data. Remove any Low-rated assets after sufficient impression volume and replace them with variants that more directly address the search intent behind the ad group's keywords.
Then check asset (extension) coverage. Every campaign should have sitelink extensions, callout extensions, and structured snippets at minimum. If you're a local business, location and call extensions are essential. If you're in eCommerce, price and promotion extensions can significantly improve CTR. Missing extensions are free ad real estate left unclaimed — they cost nothing to add and improve your Quality Score's Expected CTR component. An account without full asset coverage is giving away position and CTR to competitors who have it.
Every dollar you spend on clicks is at the mercy of your landing page. A page that takes more than three seconds to load will lose a significant share of mobile visitors before they see your offer. And a page that doesn't directly reflect the ad's promise — in headline, imagery, and call to action — creates the friction that collapses conversion rates even when targeting and ad copy are excellent.
For each major campaign, click through the destination URL from the ad preview and evaluate: Does the landing page headline reinforce the ad's primary message? Is the call to action above the fold and specific? Does the page load in under three seconds on mobile? (Google's PageSpeed Insights is the benchmark tool.) Is there one primary action, or are visitors distracted by competing navigation, offers, or links? Landing page issues flagged in the Quality Score step will point you to the highest-priority pages to fix — low Landing Page Experience scores have a measurable impact on your CPC across every keyword in that ad group.
Audience targeting in Google search campaigns is a chronically underused lever. Remarketing Lists for Search Ads (RLSA) allow you to adjust bids and tailor messaging for users who have already visited your site — a segment that typically converts at 2–5× the rate of cold traffic because the buying intent is pre-established. If you're not running RLSA bid modifiers, you're treating your warmest prospects exactly the same as strangers.
Pull the Audiences view in your campaign settings and check: Are previous site visitors and past customers added as observation audiences? Are bid adjustments set to increase bids — typically +20–50% — for these high-value segments? Are you running separate RLSA-only campaigns for your most valuable retargeting audiences? This connects directly to a broader retargeting strategy — see our complete guide to winning back lost customers with retargeting for the full picture. Also audit device bid adjustments: if mobile is delivering a meaningfully higher CPA than desktop, a mobile bid reduction of 20–40% is often a fast efficiency win.
Attribution — the model that determines which touchpoint gets credit for a conversion — directly shapes how Google's smart bidding algorithms allocate your budget. If you're using last-click attribution, you're likely under-crediting awareness and consideration-stage keywords and over-investing in bottom-funnel terms that only close what other campaigns opened. In 2026, data-driven attribution (DDA) is the recommended standard for any account generating sufficient conversion volume.
Check your attribution model under Tools → Conversions. If you're on last-click, consider switching to DDA or position-based attribution as an intermediate step. Review the attribution comparison report to see how credit shifts across campaigns when you apply different models — this frequently reveals that upper-funnel campaigns contribute far more to conversions than last-click gives them credit for. Then pull the Device Report and cross-reference conversion rates and CPA by device. Most accounts see meaningful differences across desktop, mobile, and tablet that justify distinct device bid adjustments — differences that are invisible unless you look specifically for them.
After completing all ten steps, you'll likely have a list of issues spanning tracking, structure, spend efficiency, copy, and technical performance. The prioritization order is straightforward: fix conversion tracking errors first — they corrupt every other metric and misguide every automated bidding decision. Address structural issues second — negative keywords and match type waste have compounding costs that grow every day they go unaddressed. Move to Quality Score and ad copy improvements third, then tackle attribution and advanced audience work once the foundation is sound.
In practice, Steps 1–4 alone — conversion tracking, campaign structure, the Search Terms Report, and negative keywords — will surface 70–80% of the efficiency gains available in most accounts. The downstream steps build on that foundation and accelerate performance once the fundamentals are in order.
A Google Ads audit is only as valuable as what you do with the findings. Identifying wasted spend is the starting point — the real work is systematic remediation and the ongoing discipline to keep the account clean as campaigns evolve. Our paid search management services are built around exactly this process: continuous auditing, incremental optimization, and accountable budget management aimed at lowering your CPA and scaling what works. If you'd like an expert review of your account, request a free paid search audit and we'll walk you through exactly where your budget stands today.