How to Audit Your Google Ads Account in 30 Minutes

How to Audit Your Google Ads Account in 30 Minutes

You've been running Google Ads for six months. The account is live, traffic is coming in, and you're not sure if anything is actually broken or just underperforming. You don't have $2,000 to spend on an agency audit. You have 30 minutes.

This audit won't rebuild your account. It won't optimize bids or rewrite every ad. But it will surface the three or four problems that are likely costing you the most money right now—and you can fix most of them yourself in the next hour.

Step 1: Verify Conversion Tracking Is Actually Working (5 minutes)

If conversion tracking is broken, your entire account is flying blind. You're optimizing for noise, not real customer actions.

Where to look: Tools & Settings > Conversions > Summary.

Look at the "Conversion Source" column. You should see your conversion source labeled—either "Website," "App," "Call," or "Import." If it says "Unknown" or you see no source at all, tracking is not firing.

Next, check the date range. Scroll to "Conversion Window." Standard is 30 days post-click. If it's set to 7 days, you're cutting off conversions that happen on day 8–30, and your actual return-on-ad-spend (ROAS) looks worse than it is. Change it to 30 days if you have a purchase cycle longer than a week.

Finally, eyeball the ratio: Conversions ÷ Clicks. For most small-to-mid-size accounts, this is 0.5% to 3%. If yours is 0.1% or less, or if you have thousands of clicks and zero conversions, tracking is likely broken or your conversion definition is too strict (e.g., only purchase, not "add to cart").

Step 2: Find Search Term Waste (8 minutes)

You're buying keywords, but Google is also matching you to search terms you didn't bid on. Some of those terms are completely irrelevant and are wasting budget.

Where to look: Keywords > Search Terms.

Set the date range to the last 30 days. Sort by Conversions (ascending). Look for rows with high spend, zero conversions, and search terms that have nothing to do with your product or service.

Example: You sell pet grooming services in Denver. You might find:

• "pet grooming franchise" (cost: $45, conversions: 0) — someone researching buying a franchise, not a local service
• "diy dog grooming" (cost: $62, conversions: 0) — someone looking for a tutorial
• "pet grooming supply store" (cost: $38, conversions: 0) — someone looking to buy products

These three terms just cost you $145 for nothing.

Action: Add these as negative keywords. Campaigns > [Campaign Name] > Keywords > Negative Keywords. Paste them in. They'll be blocked within hours. For a typical $5,000/month account, this step alone can recover $200–$500/month by stopping spend on irrelevant traffic.

Step 3: Check Quality Score Distribution (5 minutes)

Quality Score is Google's rating of your keyword relevance, ad relevance, and landing page quality (scale: 1–10). A low score raises your cost-per-click and lowers your ad position.

Where to look: Keywords > [Choose any campaign] > Columns > Modify Columns. Search for "Quality Score" and add it.

Now look at your keyword list. How many keywords have a Quality Score of 5 or below? Sort by Quality Score (ascending) and count the bottom 20 keywords.

If more than 25% of your keywords are 5 or below, you have a structural problem: either your ad groups are too broad (keywords and ads aren't aligned), your landing pages are thin, or your account is new and hasn't accumulated enough data yet (this improves over 2–4 weeks).

Quick fix: If you see a bunch of 3–5 quality score keywords, pause or remove the bottom 10. You're likely overpaying for weak performers anyway. This is a judgment call—if they convert at a decent rate despite the poor score, keep them—but usually, low-quality keywords are just expensive underperformers.

Step 4: Check Device Split (4 minutes)

Mobile, desktop, and tablet traffic convert at wildly different rates. You might be overpaying for one device.

Where to look: Campaigns > [Choose any campaign] > Segments > Device.

You'll see three rows: Mobile, Desktop, Tablet. Look at Cost Per Conversion for each.

Example:

• Desktop: $45 CPC, 120 conversions, $5,400 cost
• Mobile: $28 CPC, 8 conversions, $4,200 cost
• Tablet: $32 CPC, 1 conversion, $800 cost

In this case, mobile and tablet are performing terribly relative to desktop. You have two options: reduce the bid multiplier for mobile and tablet (Campaigns > [Campaign] > Settings > Mobile bid adjustment), or pause mobile and tablet entirely.

For a service business (plumber, dentist, agency), mobile conversions often lag desktop because people research on mobile but call or fill out a form on desktop. That's fine—just adjust your bids accordingly. Don't overpay for mobile clicks that won't convert.

Step 5: Check Impression Share Lost to Rank (5 minutes)

Impression share lost to rank means you're losing ad placements because your bids or Quality Score are too low. This is money on the table.

Where to look: Campaigns > Columns > Modify Columns. Search for "Impr. (Abs. Top) %," "Impr. (Top) %," and "Lost IS (Rank)." Add all three.

Look at campaigns with high spend. If "Lost IS (Rank)" is above 20%, you're missing a lot of impressions. This suggests either weak bids (increase daily budget or keyword bids) or weak Quality Score (see Step 3).

If your account is relatively new (under 3 months), this is normal and will improve. If it's mature and you're seeing 30%+ lost impression share, it's worth auditing your bids and Quality Scores more deeply.

Step 6: Review Ad Copy Freshness (3 minutes)

Old ad copy gets lower click-through rates (CTR). Lower CTR hurts Quality Score. Damaged Quality Score raises costs. Your ads might just need new headlines.

Where to look: Ads & Assets > Ads & Extensions. Sort by Creation Date (oldest first).

If you see ads from 6+ months ago still running, they're stale. Pause them and write new ones with an updated offer or hook. You don't need to replace all ads at once—just the bottom 20% by performance.

What You Should Do Next

After this audit, you'll have a prioritized list: broken tracking (fix immediately), search term waste (fix within a day), low-quality keywords (pause this week), and device bid adjustments (test in the next 2–3 weeks).

Some of these fixes are free. Some save hundreds of dollars monthly. The entire audit takes 30 minutes and requires zero special tools—just your Google Ads account and a clear head.

If you find major issues—widespread tracking failure, consistent waste across multiple campaigns—that's a sign your account needs deeper help. But most small-to-mid-size accounts have one or two fixable problems that appear when you actually look. This audit finds them.