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How to Audit a Google Ads Account (And Spot What's Wasting Your Budget)

Most Google Ads accounts are losing money quietly. Not through dramatic failures — through a dozen small decisions that compound into a budget that’s half-spent on traffic that never converts. This guide walks through how to audit a Google Ads account and find exactly where that’s happening in yours.

Start With Conversion Tracking

Nothing else in this audit matters if you can’t measure what’s happening. Before you touch campaigns, go to Tools & Settings → Conversions and verify that:

  • At least one conversion action is active and recording
  • The conversion window matches your sales cycle
  • You’re tracking something that matters (form fills, calls, purchases) — not just time on site

If conversion tracking is missing or misconfigured, you have no reliable data. Any optimization decisions made without it are guesses dressed up as strategy.

Check the Tag Status

Go to your website, submit a test form or call, and verify that the conversion fires. A green “Recording” status in the interface doesn’t always mean the tag is actually working. Use Google Tag Assistant or the Google Ads Tag Diagnostics panel to confirm.

Match Types: Where Most Budget Disappears

Open any campaign and look at the Search Terms report. This is the actual list of queries that triggered your ads — not the keywords you bid on, but what users actually typed.

Sort by cost. What you’ll usually find:

  • Broad match keywords serving completely irrelevant searches
  • Brand terms you’re paying for when organic would have caught them anyway
  • Queries that are loosely related but would never convert for your business

Broad match is Google’s favorite setting because it spends your budget fast. It can work, but only with a strong negative keyword list, tight audience signals, and active monitoring. Most small accounts have broad match keywords with no negatives and no monitoring.

Negative Keywords Are the Filter

If the Search Terms report shows irrelevant traffic, check your negative keyword lists. An account with no negatives, or only 5–10, is almost certainly wasting 20–40% of its budget on bad queries.

Build negatives from the Search Terms report. Do it monthly at minimum. Weekly if you’re spending over $3,000/month.

Campaign Structure and Ad Groups

Bloated ad groups — dozens of keywords crammed into one — make it impossible to write ads that match what users are actually searching. Google rewards tight relevance between the search query, the ad, and the landing page. Ad groups with 30+ keywords rarely achieve this.

Look for:

  • Ad groups with more than 10–15 keywords (tighten them)
  • Single keyword ad groups vs. themes — neither extreme is ideal
  • Ad groups where the keywords don’t share a clear intent

The goal is relevance. The ad should read like a direct answer to the search.

Landing Page Alignment

Click through your top-spending ads. Where do they send traffic? This is where accounts routinely fail:

The homepage problem. Sending ad traffic to a homepage forces the user to figure out what to do next. A search for “emergency plumber Brooklyn” that lands on a general plumbing homepage will lose most of its conversions before the page loads.

Every ad group should have a landing page that matches the search intent — the same language, the same offer, a single clear action. If you’re running 8 ad groups and they all point to the homepage, that’s costing you.

Bidding Strategy Mismatch

Google will suggest automated bidding strategies aggressively. They’re not always wrong, but they require enough data to work. Target CPA and Target ROAS bidding needs a minimum of 30–50 conversions per month per campaign to make statistically sound decisions.

If you’re spending $1,000/month and getting 4 conversions, putting that campaign on Target CPA will cause it to underspend, overspend erratically, or exit ad auctions entirely during its learning phase.

Check:

  • What bidding strategy is each campaign using?
  • Does the data volume support it?
  • Is the target CPA set based on your actual economics, or left at Google’s default suggestion?

Quality Score and Ad Relevance

Go to Keywords and add the Quality Score column. Anything below 5 is hurting you — you’re paying more per click than competitors with better QS, and showing up less.

Low Quality Score usually comes from one of three things:

  1. The keyword doesn’t match the ad copy closely enough
  2. The landing page doesn’t match the keyword theme
  3. The expected click-through rate is low (usually because the ad is generic)

This isn’t a vanity metric. Quality Score directly determines your cost per click and your position. An account with average QS of 4 is paying roughly double what it would at QS 8.

Ad Extensions (Now Called Assets)

Open the Assets tab. If you’re not running at minimum sitelinks, callouts, and call extensions, you’re giving up real estate on the search results page for free.

Structured snippets, lead forms, image extensions — not all of them apply to every business, but the basics should always be active. Accounts that skip extensions often have lower CTR and miss out on the additional lines of text that help disqualify the wrong clicks.

Audience and Device Data

Check the Audiences and Devices reports. Sort by conversion rate and cost per conversion.

You’ll often find:

  • Mobile traffic converting at a fraction of desktop, with no bid adjustment
  • Specific audiences (in-market, remarketing) that perform dramatically better than others
  • Age or income brackets that are waste-heavy

Bid adjustments let you spend more where performance is strong and pull back where it isn’t. Most audited accounts have never touched these.

What Bad Management Usually Looks Like

A pattern emerges across accounts that have been set up and left alone:

  • Default broad match keywords with no negatives
  • No conversion tracking, or tracking set up wrong
  • All traffic to the homepage
  • Automated bidding without enough data to support it
  • No extensions
  • No Search Terms review

If that describes your account, the budget you’re spending isn’t working as hard as it should. The fix isn’t more spend — it’s tighter settings and active management.

If you’d rather not dig through this yourself, you can run a quick audit at honest.designodin.com — it pulls your account data and flags the issues, bluntly.

FAQ

How often should a Google Ads account be audited? A full audit quarterly, with monthly reviews of Search Terms, conversions, and budget pacing. Active accounts spending $5,000+/month warrant weekly check-ins on performance metrics.

What’s the single most common waste in Google Ads accounts? Broad match keywords without a negative keyword list. It’s not close. This is the most consistent source of wasted spend across every account we’ve reviewed.

Do I need a specialist to audit my Google Ads account? You can do a surface-level audit yourself using this guide. Deeper issues — Quality Score optimization, bidding strategy alignment, attribution modeling — typically require someone who works in these accounts daily.

How long does an audit take? A thorough audit of an active account takes 3–5 hours. Skimming the surface takes 30–45 minutes. The value is in what you do with what you find.

What should I fix first after an audit? Conversion tracking, then negative keywords, then landing page alignment. In that order. Everything else depends on having clean data first.

Is there a tool to audit Google Ads automatically? Yes — Honest audits your Google Ads account and surfaces the key issues without requiring you to dig through every report manually.

What does ongoing Google Ads management actually include? Done well: weekly Search Terms reviews, negative keyword maintenance, bid adjustments, A/B testing ad copy, landing page refinement, and monthly reporting on what changed and why. If your current management doesn’t include all of that, it’s worth asking what you’re paying for.

If your account has problems this audit exposed, our Google Ads management starts at $697/month and covers everything above — no locked contracts, no vague retainers. See what’s included.