Negative keywords in Google Ads: the filter that protects lead quality
Adding negatives is qualifying leads before the form. How to read search terms, where to apply each negative and the weekly routine, with two cases from our clients.
Negative keywords are the terms you tell Google Ads never to use as a trigger for your ad. In practice, they are your first lead qualification filter: every search that has nothing to do with what you sell and gets blocked is a click that never becomes a bad contact in your CRM. Teams that handle negatives well spend less on browsers and hand sales leads with a better chance of closing.
Why negative keywords are lead qualification
A search reveals intent before anyone fills out a form, and a negative keyword stops the wrong intent at the door. Without that filter, the off-profile lead reaches sales, gets discarded and feeds the old argument about lead quality, which we cover in our post on sales and marketing alignment. Two cases from our clients show the effect.
At an edtech, the brand campaign was paying for clicks from people who only wanted to sign in: searches for the company name followed by “login” or “sign in”, made by existing users. We added terms like “login”, “sign in” and “student” to an account-level list. In the same account, in a campaign built for a specific promotion, the brand name itself was eating the budget. The fix was to add the brand as a negative there, so those searches only went to the brand campaign.
At a fintech, terms like “make money”, “easy money” and “fast” brought volume without the profile the business was after. They went in as account-level negatives, and the following month off-profile search terms dropped sharply. Over the same period, budget went up and brought more volume with slightly lower quality, a sign that the list has to keep pace with every spend increase.
How to read the search terms report
The search terms report shows what people actually typed, and that is where your negative keywords come from. For each campaign:
- Filter the period since your last review and sort by cost.
- Split the terms into three groups: relevant to the offer, wrong intent, and not sure yet.
- For the wrong-intent group, find the word that carries the problem (“free”, “login”, “jobs”, “course”, “PDF”) and add that word as a negative, not the whole search.
- For the unsure group, check your CRM before deciding: see whether any lead from that search became an opportunity.
One technical detail changes how you build the list. According to Google Ads help on negative keywords, negatives do not match close variants, synonyms or plurals. If “internship” is a negative, “internships” and “intern” need to go in separately.
Choose the match type for each negative, too. Broad blocks searches that contain all the words, in any order; phrase requires the words in the same order; exact blocks only the identical search. For a word that never works for you, such as “login”, broad does the job. For a combination that is only bad together, such as “free course”, use phrase.
Where to apply them: account, campaign or ad group
The level of a negative sets how far the block reaches, and each level has its own use.
| Level | When to use it | Examples |
|---|---|---|
| Account | terms that never fit the company | login, support, jobs, free, course |
| Shared list | the same block across several campaigns | competitor terms, third-party brands |
| Campaign | splitting traffic between campaigns | your brand as a negative in non-brand campaigns |
| Ad group | sending a search to the right group | one product's name as a negative in another product's group |
Brand campaigns need special attention. They attract existing customers who want to access their account, get a copy of an invoice or reach support. That click is cheap, but you still pay for it, and the lead it generates was never an opportunity.
The weekly negative keywords routine
A weekly review keeps the list alive, because searches change along with budget, ads and the market. The routine we use in the accounts we manage fits in a short list:
- open the week's search terms for every active campaign;
- add wrong-intent words as negatives at the right level;
- check that no new negative blocks an active keyword;
- note what went in and why, for whoever reviews next;
- repeat the check whenever budget goes up or a new campaign launches.
That log also feeds the paid media audit when someone new takes over the account.
In the paid media accounts we manage, this review is part of every client's weekly routine, together with bids, audiences and ads.
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When not to add a negative
Too many negatives cut off demand you have not discovered yet. Hold back when:
- the term is ambiguous and you do not have enough data yet;
- the search looks top of funnel, but its leads turn into opportunities in your CRM;
- the word shows up in both good and bad searches, and a phrase or exact negative solves it without blocking the good ones.
The final test is what happens after the click. Your cost per lead by campaign and the lead grade in lead scoring in RD Station show whether a search brings in the right profile, even when the term looks odd.
Frequently asked questions
Do negative keywords reduce lead volume?
They reduce clicks from people who would not buy, so volume can dip at first. If the drop hits leads with the right profile, the list cut too deep: go back to the search terms report and your CRM, and release the word.
Do negative keywords work in Performance Max?
The account-level negative list also applies to the search and Shopping inventory of eligible campaigns, such as Performance Max, according to Google Ads help. Check the campaign settings before you count on the same control you have in Search.
Can I add a competitor's name as a negative?
Yes. Do it when searches for that competitor bring people who have already chosen them. If your strategy includes competing for that search, build a dedicated campaign for it, with its own ad and landing page.
