That gap between your keywords and real search terms is where your ad budget quietly bleeds out. The search terms vs keywords disconnect is the single biggest thing PPC audits skip over. And it's not a small issue either.
Accounts running broad match keywords without regular search term reviews can lose 20 to 40 percent of their monthly spend on clicks that were never going to convert. But it’s where a huge chunk of wasted spend hides in plain sight.
This guide will show you exactly what gets missed, why it matters, and how to fix it so your ads stop paying for clicks that will never turn into customers.
Why Keywords and Search Terms Are Not the Same Thing
Even people running six figure ad budgets mess this up. When you set up a Google Ads campaign, you pick words and phrases you want to target.
Maybe "plumber near me" or "best CRM software." Those are your keywords. You chose them. You set a bid for each one. They’re your strategy.
Search terms are completely different. They’re the real words a person types into Google right before they see your ad. You might bid on "plumber near me," but someone types "cheap plumber for broken toilet emergency."
That entire phrase is the search term. It triggered your ad because Google decided it was close enough to your keyword. Sometimes Google gets that right. Sometimes it really doesn’t.
Every one of those clicks costs you money and gives you nothing back. This is why just looking at keywords during an audit tells you almost nothing about what’s really going on in your account.
What Most PPC Audits Get Wrong About Search Terms
Most PPC audit reports check keyword performance, Quality Scores, and bid strategies. But the search terms report in Google Ads barely gets a glance.
They Only Check Keywords, Not the Search Terms Report
The auditor opens Google Ads, goes to the keyword tab, and sees that "running shoes for men" got 243 clicks. They think 243 people searched for "running shoes for men." Wrong. Those 243 clicks came from hundreds of different search queries.
Some might have been "cheap running shoes clearance." Others could be "running shoes for flat feet kids." Without opening the search terms report, you have no idea what actually triggered those clicks.
A TLC Ads case study found that a software company spending £5,000 per month had almost 40% of its budget going to completely irrelevant searches. The keyword tab looked fine. The search terms report told a completely different story.
They Ignore the "Other Search Terms" Row
If you scroll to the bottom of any search terms report, you’ll see a row called "Total: Other search terms." That row represents every query Google decided not to show you. Here’s how bad the problem actually is:
- According to Search Engine Land, hidden search terms may account for up to 85% of advertiser spend in inefficiencies
- Adthena’s research found that 51% of ad budget could be going toward non converting hidden terms
- Other estimates put the hidden data range between 20% and 80% depending on the account
- Google started limiting search term visibility in September 2020, and it’s only gotten worse since
A good audit flags this row and calculates what percentage of your total spend is invisible.
They Skip Match Type Analysis
Match types control how loosely Google can interpret your keywords. Broad match lets Google show your ad for any search it thinks is "related" to your keyword.
If you bid on "wedding photographer," a broad match might show your ad for "photo printing near me." Even the exact match has gotten looser with Google’s "close variants" which now includes synonyms and implied intent.
Most audits never compare how each match type actually performs inside the search terms report, and that blind spot can cost you thousands.
How to Audit the Search Terms Report the Right Way
Start by opening Google Ads, clicking the Campaigns icon, then going to Insights and Reports, and clicking Search Terms.
Sort by Cost First, Not Clicks
Most people sort search terms by clicks or impressions. Sort by cost instead. You want to see which search terms are eating the most budget. A term with 3 clicks might seem harmless until you see each click cost $47.
That’s $141 gone on a query that might be totally off target. Next, add the Keyword column to your view (click the columns icon, then select Attributes, then check Keyword). This shows exactly which keyword triggered each search term.
Flag Anything With High Spend and Zero Conversions
Filter your search terms for anything that has spent more than twice your average cost per conversion but has zero conversions. Those are your worst offenders. Add them as negative keywords right away.
If a search term spent $200 and didn’t convert once, it’s not going to magically start working tomorrow. Also pay attention to search terms that are converted but at a cost per acquisition three or four times higher than your target.
Those are quieter budget drains that most people miss because they technically "worked."
Look for Patterns, Not Just Single Bad Queries
Don't add individual bad search terms as negatives one by one. Look for the root word causing the problem. If the same word keeps showing up across multiple irrelevant queries, add that root word as a negative keyword. That one move can block hundreds of bad queries at once.
Check Your Match Type Performance
Export the data and create a simple breakdown by match type. Compare cost per conversion for broad match triggers versus exact match triggers. If broad match is spending 60% of your budget but only bringing in 20% of your conversions, tighten up.
WordStream reported that Google’s 2020 search terms visibility change made broad matches even riskier because you can’t see what many of those clicks actually came from.
If the budget is tight, stick with exact match and phrase match until you have at least 30 conversions per month to give broad match enough data to work with.
Negative Keywords: The Part of the Audit Nobody Does Well
Every PPC audit mentions negative keywords. But almost none of them actually evaluate whether the list is good enough.
Why Most Negative Keyword Lists Are Too Short
You’d be surprised how many accounts spending $10,000 a month have only five negative keywords. A well managed account should have dozens, sometimes hundreds, built up over time from regular search term reviews. If your audit didn’t comment on the size and quality of your negative keyword list, it missed a critical piece.
Common Negative Keywords Almost Every Account Needs
Unless they directly apply to your business, most accounts should block terms like these:
- Free, cheap, discount, and download
- Jobs, careers, salary, and hiring
- DIY and how to
- Reviews, reddit, and forum
One blocking rule for "jobs" alone can save a service business thousands per year in wasted clicks from job seekers.
How Often You Should Update Your Negative List
At bare minimum, check your search terms report every two weeks. If you’re running broad matches or spending more than $5,000 a month, make it weekly.
Accounts that go a full month without reviewing search terms can easily waste 20 to 30 percent of their budget on irrelevant traffic. When you do review, sort by the "Added/Excluded" column and focus on terms labeled "None."
Those are queries that aren’t already in your account as keywords and haven’t been excluded yet. That’s where your cleanup should start every single time.
What to Do Next
Open your search terms report right now. Sort by cost. Look at the top 50 search terms and ask yourself: are at least 80% of these actually relevant to what you sell?
If not, you’ve found the leak. Add negative keywords for the worst offenders today and set a reminder to check this report every two weeks. Google keeps giving itself more freedom with how it matches your keywords to real searches.
That’s not going to change. The only way to protect your budget is to stay on top of what’s actually triggering your ads.
Your keywords are just the starting point. The search terms are where the truth lives.
