How to Audit a Google Ads Account: A 20-Point Checklist for Agencies

Every Google Ads account tells a story. Some tell a story of careful optimization and disciplined spending. Most, however, tell a story of quiet waste - money draining through misconfigured conversion tracking, irrelevant search terms, and default settings that no one bothered to change. A study found that just 29% of Google Ads accounts have accurate conversion tracking. That means the majority of advertisers are making optimization decisions based on data that's fundamentally wrong.

If you've ever inherited an account with 47 campaigns (half paused but still containing active ad groups), three different conversion actions all named "Purchase" with different attribution models, and 30% of spend going to irrelevant search queries - you understand why audits exist. They're not academic exercises. They're the difference between scaling profitably and subsidizing Google's quarterly earnings. This checklist distills what experienced PPC practitioners actually check - in order of priority - when they open an unfamiliar account. It's organized into five phases, from measurement integrity to execution planning, with 20 specific audit points that cover the areas where agencies consistently find the biggest problems.

Phase 1: Verify Your Access and Define Audit Goals

1. Secure Full Platform Access

Before analyzing a single metric, confirm you have access to every system that touches the account. To make your audit effective, ensure you have full access to Google Ads, GA4, Merchant Center (for eCommerce), and UTM and GCLID data - without these, even the best checklist won't give you the full picture. You also need access to Google Tag Manager to inspect how conversion tracking is actually wired.

Make sure you have at least read-only access to three platforms: Google Ads itself (to see campaign structures and settings), GA4 (to understand post-click behavior), and GTM (to verify how pixels and tags are configured). Missing any of these means you're auditing with blind spots.

2. Align on KPIs Before Touching the Data

The first step is defining your goals and key performance indicators. To make a PPC audit truly actionable, focus on metrics that directly affect the business. This means getting alignment with the client on what "success" means before you pull a single report. For eCommerce, that typically means ROAS and customer acquisition cost. For lead generation, it means cost per qualified lead - not cost per form fill. If a conversion doesn't correlate with revenue or qualified leads, it doesn't belong as a primary conversion. This distinction is where most account problems begin.

Phase 2: Audit Conversion Tracking and Measurement

3. Map Every Conversion Action

This is the most important section of the audit. Everything else - bidding, budgets, targeting - depends on accurate conversion tracking. If conversions are wrong, every optimization decision based on them is wrong.

Navigate to Goals → Conversions in Google Ads and list every active conversion action. You'll often find duplicates, test conversions that were never deleted, and actions that track meaningless events like page views being counted as conversions. For each action, document: the name, the source, whether it's set to primary or secondary, and when it last recorded data.

Only primary conversions are used for bidding. Check that the right actions are set to primary. A common mistake: having "Add to Cart" and "Purchase" both set to primary, which double-counts the funnel and confuses Smart Bidding.

4. Verify GA4 Integration and Cross-Platform Consistency

The foundation of any Google Ads audit is working with GA4. If GA4 data is incomplete or inaccurate, Google Ads automation will optimize based on the wrong signals, leading to wasted budgets. Confirm that GA4 is properly linked, that conversion imports are set up correctly, and that events fire without delays. Check for a common trap: conversions duplicated because both a GA4 event and an Ads tag are counting the same action. Compare conversion counts between GA4 and Google Ads for the same date range. Significant discrepancies indicate a tracking layer problem that needs resolution before any performance analysis is meaningful.

5. Assess Enhanced Conversions and Signal Quality

Between browser cookie restrictions, ad blockers used by roughly 30% of internet users, and cross-device behavior, the gap between actual conversions and tracked conversions has widened to the point where many advertisers are optimizing on data that captures only 50% to 70% of their real performance.

Check whether Enhanced Conversions is active by going to Tools and Settings → Conversions, clicking on the conversion action, and checking the Diagnostics tab. A healthy implementation shows 50% or more of conversions enhanced. Below 30% indicates your data capture needs fixing.

Enhanced Conversions improves conversion attribution accuracy by sending hashed first-party customer data securely to Google Ads, even as browser privacy restrictions make traditional tracking less reliable. For accounts not yet using Enhanced Conversions, flag this as a high-priority fix - it directly improves Smart Bidding performance.

6. Check Consent Mode Configuration

For accounts with European traffic, Consent Mode V2 is no longer optional. When Consent Mode is missing and you lose data on a significant portion of EEA traffic, your audience signals are skewed, your remarketing lists are smaller than they should be, and your conversion-based bid strategies are optimizing on a minority of your actual performance.

For Google to model conversions from unconsented users, your account needs to meet minimum thresholds: at least 700 ad clicks over 7 days per country and domain, 7 full days of data collection, and a reasonable consent rate. Verify these thresholds are met and that Advanced Mode (not just Basic Mode) is implemented.

Phase 3: Audit Account Structure and Campaign Settings

7. Evaluate Campaign Organization

Ask whether campaigns are clearly separated by intent and goal, whether there's a clear split between brand vs. non-brand, and whether the account is over-segmented (too many tiny campaigns) or under-segmented (everything shoved together).

If the same high-intent keywords are used in multiple campaigns, you may end up with a higher CPC since you're essentially bidding against yourself. Use consistent naming conventions that include campaign type and objective - something like "Search_NonBrand_LeadGen" - so anyone touching the account can navigate it immediately.

8. Inspect Location Targeting Settings

This is one of the fastest wins in any audit. Choosing the default "Presence or interest" option is one of the most common ways businesses unintentionally waste ad spend, especially local businesses.

The default "Presence or interest" setting causes significant budget waste for local businesses. A plumber in Denver targeting Colorado with the default setting will show ads to users in California searching for "Denver plumber." These clicks cost money but never convert.

For any business with a defined service area, switch to "Presence" targeting. With the exception of tourism-related businesses, most advertisers should change this setting to Presence only. Also verify that geographic exclusions are applied for areas the business doesn't serve.

9. Review Ad Scheduling and Device Performance

Check that the ad schedule is aligned with sales coverage, especially for call-heavy businesses. If a service business receives calls during business hours but their ads run 24/7, they're paying for after-hours clicks that won't convert. Pull device segmentation data for the past 90 days. In 2024, 76% of Google Ads spending came from mobile devices. Mobile users behave differently than desktop users, often browsing quickly and with less intent to convert immediately. If mobile CPA is significantly worse than desktop but budgets aren't adjusted, that's a clear optimization gap.

10. Confirm Network Settings

Campaigns shouldn't run on Display and Search at the same time. The Search network consists of users searching for goods, services, and information. The Display network is made up of publisher sites that show ads - the user intent and networks are so different that it's best not to combine the two in one campaign.

Also check whether Search Partners is enabled. For many accounts, Search Partners delivers lower-quality traffic at higher CPAs. Segment performance by network and make a data-driven call on whether to keep it active.

Phase 4: Audit Keywords, Ads, and Landing Pages

11. Mine the Search Terms Report

Even in 2026, with AI Max expanding match types further, reviewing search term reports weekly and adding negative keywords is one of the highest-ROI activities in Google Ads account management. A search term audit typically finds 15–30% of spend flowing to irrelevant or low-intent queries that should be excluded.

Pull 30 to 90 days of search term data. Tag each term as relevant, irrelevant, or borderline. Add negatives for irrelevant themes like jobs, free, DIY, definitions, and unrelated industries. Quantify the wasted spend in dollar terms - this number alone often justifies the entire audit.

12. Evaluate Negative Keyword Coverage

Negative keywords must be correctly formatted - mistakes in match types mean you may not block unwanted search traffic. Shared negative lists help avoid conflicts and are easier to manage.

Check whether negative keyword lists exist at the account level (shared lists) or are scattered across individual campaigns. Scattered negatives lead to inconsistent blocking. Consolidate them into shared lists organized by theme - competitors, informational intent, irrelevant industries.

13. Assess Match Type Strategy

When you target a broad match keyword, your ad will be triggered for various search terms. While this can expand reach, the downside is that your ad triggers for terms only loosely connected to the keyword - wasting budget.

Broad match can work effectively with Smart Bidding and sufficient conversion volume. But in accounts with thin data (fewer than 30 conversions per month), broad match often spirals into irrelevant traffic. Audit the ratio of match types to conversion volume and ensure the account has the data density to support its match type strategy.

14. Review Ad Copy and Asset Quality

For Responsive Search Ads, check that each ad group has at least one RSA with all 15 headline slots and 4 description slots filled. Google states it prioritizes ad variations with better-performing assets, which can significantly impact campaign performance.

Look for patterns in ad strength ratings, but don't obsess over the score itself. Ad strength is an ad-level diagnostic that checks whether your responsive ad follows best practices. It has zero impact on auction performance. What matters more: do the ads match user intent? Do headlines reference the keyword theme? Is there a clear value proposition and call to action? Check for disapproved ads. Even one disapproval can reduce an ad group's ability to compete in auctions.

15. Audit Landing Page Alignment

Sending all traffic to your homepage instead of dedicated landing pages is one of the most common and costly mistakes. For each high-spend ad group, click through to the actual landing page. Ask three questions: Does the page headline match the ad promise? Does the page load in under three seconds on mobile? Is the conversion action (form, phone number, checkout) visible without scrolling?

Use tools like Hotjar or Microsoft Clarity to analyze user behavior on landing pages. Heatmaps and session recordings reveal where visitors drop off - data that's invisible in Google Ads alone.

16. Diagnose Quality Score Patterns

When you analyze Quality Score, don't judge keywords in isolation. Look for patterns at the ad group level instead. If most keywords have a Quality Score of 7 or higher, you're in good shape. If clusters of keywords sit at 5 or below, investigate the three sub-components: Expected CTR, Ad Relevance, and Landing Page Experience.

Quality Score is calculated based on expected clickthrough rate (how likely your ad will be clicked), ad relevance (how closely your ad matches search intent), and landing page experience (how relevant and useful your landing page is). Each component points to a different fix - poor ad relevance means restructuring ad groups, while poor landing page experience means the page itself needs work.

Phase 5: Audit Bidding, Budgets, and Performance Max

17. Evaluate Bidding Strategy Alignment

Switching from "Maximize Clicks" to "Maximize Conversions" or Target ROAS can dramatically impact performance. Without testing, you risk losing profit.

Check whether the bidding strategy matches the campaign's maturity. A new campaign with fewer than 15 conversions per month doesn't have enough data for Target CPA or Target ROAS to learn effectively. Conversely, a mature campaign still running on Manual CPC is leaving money on the table.

Google lets you run experiments where you can 50/50 test one bid strategy against another. Test each for a few weeks, identify which strategy works better, and adjust based on results.

18. Analyze Budget Allocation

Ask whether high-performing campaigns are getting enough budget, and adjust so they can perform even better. Look for campaigns "Limited by Budget" that have strong ROAS or CPA - these are candidates for increased investment. Simultaneously, identify low-performers that are burning through their daily budget with nothing to show for it.

Avoid shared budgets for all but the smallest accounts. Shared budgets overspend, are inconsistent, and can saturate areas of the account while ignoring others. Google will bias spend to areas it knows will spend - not areas that convert best.

19. Audit Performance Max Campaigns

Performance Max deserves its own checklist within the audit. The percentage of advertisers using Performance Max jumped from 60% to 71% between 2024 and 2025 , making this a near-universal audit item. Start with the inputs. PPC expert Jyll Saskin Gales identifies three top optimization levers: "conversion settings, bid strategy, and assets." Verify that each asset group has diverse, high-quality creative - not the same assets duplicated across groups. The creative you use is the real audience signal in PMax. Duplicating the same assets across multiple asset groups doesn't create segmentation - it creates redundancy.

Asset groups with no audience signal can cause wasted spend on unwanted search terms and placements. Check that every asset group has a defined audience signal, and that asset groups without ad assets or with poor performance labels are flagged for immediate attention.

PMax campaigns can cannibalize your Search campaigns. Monitor search terms closely and add relevant PMax negatives and Search exact match keywords to control which campaign serves your ads.

20. Build a Prioritized Action Plan

An audit without a clear output is just an opinion. Categorize every finding into a priority matrix: high impact + low effort items go first (adding negative keywords, fixing UTM tags). High impact + high effort items become projects (restructuring the account). Low impact + low effort items get handled in the background. Low impact + high effort items get postponed.

Start with cleaning up conversions (primary vs. secondary, duplicates), adding obvious negatives and excluding waste themes, tightening brand vs. non-brand structure, fixing geo and scheduling waste, updating ads to qualify clicks, and improving landing page message match.

Set a timeline. Weeks 1–2 should address critical tracking issues. Weeks 3–4 should optimize bids and budgets in low-ROAS campaigns. Month 2 should introduce new audience and creative tests.

The Audit as a Strategic Instrument

The best audits don't just find problems. They quantify the financial impact of every issue and build a roadmap that earns trust from the first week of implementation. Present the findings, quantify the waste, and show the client exactly what you're going to fix and in what order. That's what turns an audit into a retained engagement.

A thorough Google Ads audit takes 4–8 hours per account when done manually. For an agency managing 20+ accounts, that's a full work week just on audits. Tools like Adalysis, Optmyzr, and Markifact can automate portions of this checklist and flag issues in minutes rather than hours. But automation doesn't replace judgment. The agent doesn't replace the strategist - you still need human judgment to prioritize findings and communicate with the client.

Run this checklist quarterly at minimum. A stable ROAS can sometimes mask a rising CAC due to shifts in audience structure - something only discovered after a thorough audit. Markets shift. Competitors enter auctions. Tracking breaks silently when developers push code changes. The only defense is a systematic review process that catches problems before they compound into permanent damage. Treat the audit not as a one-time deliverable, but as the foundation of every optimization decision your agency makes.