Negative Keywords

What Are Negative Keywords?

Negative Keywords (known in German as "auszuschließende Keywords") are search terms for which an advertisement should intentionally not be displayed. They are used in search engine advertising (SEA), such as Google Ads or Microsoft Ads. While regular keywords determine for which search queries an ad should appear, negative keywords do the opposite: they specify for which search queries the ad should not appear.

An important note on differentiation: Negative Keywords have nothing to do with "Negative SEO." They are purely a control tool for paid advertising campaigns and not a harmful measure.

What Are Negative Keywords Used For?

The primary purpose is to avoid wasted ad spend. Without negative keywords, an ad may appear for search queries that contain the keyword but do not match the target audience. Every click on such an ad costs money but rarely leads to a conversion.

A classic example: A company sells high-end designer glasses and bids on the keyword "glasses." Without negative keywords, the ad would also appear for searches like "cheap glasses," "used glasses," or "glasses repair," i.e., for users with entirely different intentions. By excluding terms like "cheap," "used," and "repair" as negative keywords, the ad is only shown to genuinely interested users.

The Benefits at a Glance

• Reduced wasted ad spend: The ad appears only for truly relevant search queries.
• Lower costs: No expenses are incurred for clicks from users without the right intent.
• Higher click-through rate (CTR): Since the ad is displayed more precisely, interested users are more likely to click, improving CTR and Quality Score.
• Better conversion rate: The traffic is more relevant, leading to more clicks resulting in actual sales.

The Different Keyword Match Options

Just like with regular keywords, you can also specify how closely a search query must match the excluded term for negative keywords:

• Broad match: The ad is excluded if all words of the negative keyword appear in the search query, regardless of order.
• Phrase match: The exclusion applies if the exact phrase is contained in the search query.
• Exact match: The ad is excluded only for this exact search term, without additional words.

Important: Unlike regular keywords, negative keywords do not automatically exclude close variants such as synonyms or spelling mistakes. Such variants must therefore be added individually if necessary.

How to Find Suitable Negative Keywords?

• Analyze the search terms report: The most important tool. It shows the actual search queries for which an ad was displayed. This allows you to identify irrelevant terms and exclude them.
• Think ahead: Even before launching a campaign, you can collect obviously unsuitable terms, such as "free" or "jobs," if you are selling products and not offering employment.
• Use negative keyword lists: Frequently excluded terms can be grouped into lists and applied to multiple campaigns simultaneously.

Typical Examples of Negative Keywords

• "free," "gratis": useful if only paying customers should be reached.
• "jobs," "training," "job offer": if no career-related content is being advertised.
• Competitor names: to avoid appearing in searches for competitors.
• "used," "repair": if only new products are sold.

Conclusion

Negative keywords are a simple yet highly effective tool in search engine advertising. They ensure that ads appear only for truly relevant search queries, reducing unnecessary costs while simultaneously improving click-through and conversion rates. Managing negative keywords is not a one-time task but should be done continuously using the search terms report. Those who regularly refine their campaigns in this way get significantly more out of their advertising budget.